diff --git a/src/3rdParty/FastSignals/tests/catch2/catch.hpp b/src/3rdParty/FastSignals/tests/catch2/catch.hpp
index 28448ddb22..f4cb8f25a0 100644
--- a/src/3rdParty/FastSignals/tests/catch2/catch.hpp
+++ b/src/3rdParty/FastSignals/tests/catch2/catch.hpp
@@ -1,13287 +1,17976 @@
 /*
- *  Catch v2.2.3
- *  Generated: 2018-06-06 23:11:57.601416
+ *  Catch v2.13.10
+ *  Generated: 2022-10-16 11:01:23.452308
  *  ----------------------------------------------------------
  *  This file has been merged from multiple headers. Please don't edit it directly
- *  Copyright (c) 2018 Two Blue Cubes Ltd. All rights reserved.
+ *  Copyright (c) 2022 Two Blue Cubes Ltd. All rights reserved.
  *
  *  Distributed under the Boost Software License, Version 1.0. (See accompanying
  *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  */
-#ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
-#define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
-// start catch.hpp
-
-
-#define CATCH_VERSION_MAJOR 2
-#define CATCH_VERSION_MINOR 2
-#define CATCH_VERSION_PATCH 3
-
-#ifdef __clang__
-#    pragma clang system_header
-#elif defined __GNUC__
-#    pragma GCC system_header
-#endif
-
-// start catch_suppress_warnings.h
-
-#ifdef __clang__
-#   ifdef __ICC // icpc defines the __clang__ macro
-#       pragma warning(push)
-#       pragma warning(disable: 161 1682)
-#   else // __ICC
-#       pragma clang diagnostic ignored "-Wunused-variable"
-#       pragma clang diagnostic push
-#       pragma clang diagnostic ignored "-Wpadded"
-#       pragma clang diagnostic ignored "-Wswitch-enum"
-#       pragma clang diagnostic ignored "-Wcovered-switch-default"
-#    endif
-#elif defined __GNUC__
-#    pragma GCC diagnostic ignored "-Wparentheses"
-#    pragma GCC diagnostic push
-#    pragma GCC diagnostic ignored "-Wunused-variable"
-#    pragma GCC diagnostic ignored "-Wpadded"
-#endif
-// end catch_suppress_warnings.h
-#if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
-#  define CATCH_IMPL
-#  define CATCH_CONFIG_ALL_PARTS
-#endif
-
-// In the impl file, we want to have access to all parts of the headers
-// Can also be used to sanely support PCHs
-#if defined(CATCH_CONFIG_ALL_PARTS)
-#  define CATCH_CONFIG_EXTERNAL_INTERFACES
-#  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#    undef CATCH_CONFIG_DISABLE_MATCHERS
-#  endif
-#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
-#endif
-
-#if !defined(CATCH_CONFIG_IMPL_ONLY)
-// start catch_platform.h
-
-#ifdef __APPLE__
-# include <TargetConditionals.h>
-# if TARGET_OS_OSX == 1
-#  define CATCH_PLATFORM_MAC
-# elif TARGET_OS_IPHONE == 1
-#  define CATCH_PLATFORM_IPHONE
-# endif
-
-#elif defined(linux) || defined(__linux) || defined(__linux__)
-#  define CATCH_PLATFORM_LINUX
-
-#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
-#  define CATCH_PLATFORM_WINDOWS
-#endif
-
-// end catch_platform.h
-
-#ifdef CATCH_IMPL
-#  ifndef CLARA_CONFIG_MAIN
-#    define CLARA_CONFIG_MAIN_NOT_DEFINED
-#    define CLARA_CONFIG_MAIN
-#  endif
-#endif
-
-// start catch_user_interfaces.h
-
-namespace Catch {
-    unsigned int rngSeed();
-}
-
-// end catch_user_interfaces.h
-// start catch_tag_alias_autoregistrar.h
-
-// start catch_common.h
-
-// start catch_compiler_capabilities.h
-
-// Detect a number of compiler features - by compiler
-// The following features are defined:
-//
-// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
-// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
-// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
-// ****************
-// Note to maintainers: if new toggles are added please document them
-// in configuration.md, too
-// ****************
-
-// In general each macro has a _NO_<feature name> form
-// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
-// Many features, at point of detection, define an _INTERNAL_ macro, so they
-// can be combined, en-mass, with the _NO_ forms later.
-
-#ifdef __cplusplus
-
-#  if __cplusplus >= 201402L
-#    define CATCH_CPP14_OR_GREATER
-#  endif
-
-#  if __cplusplus >= 201703L
-#    define CATCH_CPP17_OR_GREATER
-#  endif
-
-#endif
-
-#if defined(CATCH_CPP17_OR_GREATER)
-#  define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
-#endif
-
-#ifdef __clang__
-
-#       define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-            _Pragma( "clang diagnostic push" ) \
-            _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
-            _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
-#       define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
-            _Pragma( "clang diagnostic pop" )
-
-#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
-            _Pragma( "clang diagnostic push" ) \
-            _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
-#       define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
-            _Pragma( "clang diagnostic pop" )
-
-#endif // __clang__
-
-////////////////////////////////////////////////////////////////////////////////
-// Assume that non-Windows platforms support posix signals by default
-#if !defined(CATCH_PLATFORM_WINDOWS)
-    #define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
-#endif
-
-////////////////////////////////////////////////////////////////////////////////
-// We know some environments not to support full POSIX signals
-#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
-    #define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
-#endif
-
-#ifdef __OS400__
-#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
-#       define CATCH_CONFIG_COLOUR_NONE
-#endif
-
-////////////////////////////////////////////////////////////////////////////////
-// Android somehow still does not support std::to_string
-#if defined(__ANDROID__)
-#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
-#endif
-
-////////////////////////////////////////////////////////////////////////////////
-// Not all Windows environments support SEH properly
-#if defined(__MINGW32__)
-#    define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
-#endif
-
-////////////////////////////////////////////////////////////////////////////////
-// Cygwin
-#ifdef __CYGWIN__
-
-// Required for some versions of Cygwin to declare gettimeofday
-// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
-#   define _BSD_SOURCE
-
-#endif // __CYGWIN__
-
-////////////////////////////////////////////////////////////////////////////////
-// Visual C++
-#ifdef _MSC_VER
-
-#  if _MSC_VER >= 1900 // Visual Studio 2015 or newer
-#    define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
-#  endif
-
-// Universal Windows platform does not support SEH
-// Or console colours (or console at all...)
-#  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
-#    define CATCH_CONFIG_COLOUR_NONE
-#  else
-#    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
-#  endif
-
-#endif // _MSC_VER
-
-////////////////////////////////////////////////////////////////////////////////
-
-// DJGPP
-#ifdef __DJGPP__
-#  define CATCH_INTERNAL_CONFIG_NO_WCHAR
-#endif // __DJGPP__
-
-////////////////////////////////////////////////////////////////////////////////
-
-// Use of __COUNTER__ is suppressed during code analysis in
-// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
-// handled by it.
-// Otherwise all supported compilers support COUNTER macro,
-// but user still might want to turn it off
-#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
-    #define CATCH_INTERNAL_CONFIG_COUNTER
-#endif
-
-#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
-#   define CATCH_CONFIG_COUNTER
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
-#   define CATCH_CONFIG_WINDOWS_SEH
-#endif
-// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
-#if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) && !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
-#   define CATCH_CONFIG_POSIX_SIGNALS
-#endif
-// This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
-#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
-#   define CATCH_CONFIG_WCHAR
-#endif
-
-#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
-#    define CATCH_CONFIG_CPP11_TO_STRING
-#endif
-
-#if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
-#  define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
-#endif
-
-#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
-#   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
-#   define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
-#endif
-#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
-#   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
-#   define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
-#endif
-
-// end catch_compiler_capabilities.h
-#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
-#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
-#ifdef CATCH_CONFIG_COUNTER
-#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
-#else
-#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
-#endif
-
-#include <iosfwd>
-#include <string>
-#include <cstdint>
-
-namespace Catch {
-
-    struct CaseSensitive { enum Choice {
-        Yes,
-        No
-    }; };
-
-    class NonCopyable {
-        NonCopyable( NonCopyable const& )              = delete;
-        NonCopyable( NonCopyable && )                  = delete;
-        NonCopyable& operator = ( NonCopyable const& ) = delete;
-        NonCopyable& operator = ( NonCopyable && )     = delete;
-
-    protected:
-        NonCopyable();
-        virtual ~NonCopyable();
-    };
-
-    struct SourceLineInfo {
-
-        SourceLineInfo() = delete;
-        SourceLineInfo( char const* _file, std::size_t _line ) noexcept
-        :   file( _file ),
-            line( _line )
-        {}
-
-        SourceLineInfo( SourceLineInfo const& other )        = default;
-        SourceLineInfo( SourceLineInfo && )                  = default;
-        SourceLineInfo& operator = ( SourceLineInfo const& ) = default;
-        SourceLineInfo& operator = ( SourceLineInfo && )     = default;
-
-        bool empty() const noexcept;
-        bool operator == ( SourceLineInfo const& other ) const noexcept;
-        bool operator < ( SourceLineInfo const& other ) const noexcept;
-
-        char const* file;
-        std::size_t line;
-    };
-
-    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );
-
-    // Use this in variadic streaming macros to allow
-    //    >> +StreamEndStop
-    // as well as
-    //    >> stuff +StreamEndStop
-    struct StreamEndStop {
-        std::string operator+() const;
-    };
-    template<typename T>
-    T const& operator + ( T const& value, StreamEndStop ) {
-        return value;
-    }
-}
-
-#define CATCH_INTERNAL_LINEINFO \
-    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )
-
-// end catch_common.h
-namespace Catch {
-
-    struct RegistrarForTagAliases {
-        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
-    };
-
-} // end namespace Catch
-
-#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) \
-    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-    namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
-
-// end catch_tag_alias_autoregistrar.h
-// start catch_test_registry.h
-
-// start catch_interfaces_testcase.h
-
-#include <vector>
-#include <memory>
-
-namespace Catch {
-
-    class TestSpec;
-
-    struct ITestInvoker {
-        virtual void invoke () const = 0;
-        virtual ~ITestInvoker();
-    };
-
-    using ITestCasePtr = std::shared_ptr<ITestInvoker>;
-
-    class TestCase;
-    struct IConfig;
-
-    struct ITestCaseRegistry {
-        virtual ~ITestCaseRegistry();
-        virtual std::vector<TestCase> const& getAllTests() const = 0;
-        virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
-    };
-
-    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
-    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
-    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
-
-}
-
-// end catch_interfaces_testcase.h
-// start catch_stringref.h
-
-#include <cstddef>
-#include <string>
-#include <iosfwd>
-
-namespace Catch {
-
-    class StringData;
-
-    /// A non-owning string class (similar to the forthcoming std::string_view)
-    /// Note that, because a StringRef may be a substring of another string,
-    /// it may not be null terminated. c_str() must return a null terminated
-    /// string, however, and so the StringRef will internally take ownership
-    /// (taking a copy), if necessary. In theory this ownership is not externally
-    /// visible - but it does mean (substring) StringRefs should not be shared between
-    /// threads.
-    class StringRef {
-    public:
-        using size_type = std::size_t;
-
-    private:
-        friend struct StringRefTestAccess;
-
-        char const* m_start;
-        size_type m_size;
-
-        char* m_data = nullptr;
-
-        void takeOwnership();
-
-        static constexpr char const* const s_empty = "";
-
-    public: // construction/ assignment
-        StringRef() noexcept
-        :   StringRef( s_empty, 0 )
-        {}
-
-        StringRef( StringRef const& other ) noexcept
-        :   m_start( other.m_start ),
-            m_size( other.m_size )
-        {}
-
-        StringRef( StringRef&& other ) noexcept
-        :   m_start( other.m_start ),
-            m_size( other.m_size ),
-            m_data( other.m_data )
-        {
-            other.m_data = nullptr;
-        }
-
-        StringRef( char const* rawChars ) noexcept;
-
-        StringRef( char const* rawChars, size_type size ) noexcept
-        :   m_start( rawChars ),
-            m_size( size )
-        {}
-
-        StringRef( std::string const& stdString ) noexcept
-        :   m_start( stdString.c_str() ),
-            m_size( stdString.size() )
-        {}
-
-        ~StringRef() noexcept {
-            delete[] m_data;
-        }
-
-        auto operator = ( StringRef const &other ) noexcept -> StringRef& {
-            delete[] m_data;
-            m_data = nullptr;
-            m_start = other.m_start;
-            m_size = other.m_size;
-            return *this;
-        }
-
-        operator std::string() const;
-
-        void swap( StringRef& other ) noexcept;
-
-    public: // operators
-        auto operator == ( StringRef const& other ) const noexcept -> bool;
-        auto operator != ( StringRef const& other ) const noexcept -> bool;
-
-        auto operator[] ( size_type index ) const noexcept -> char;
-
-    public: // named queries
-        auto empty() const noexcept -> bool {
-            return m_size == 0;
-        }
-        auto size() const noexcept -> size_type {
-            return m_size;
-        }
-
-        auto numberOfCharacters() const noexcept -> size_type;
-        auto c_str() const -> char const*;
-
-    public: // substrings and searches
-        auto substr( size_type start, size_type size ) const noexcept -> StringRef;
-
-        // Returns the current start pointer.
-        // Note that the pointer can change when if the StringRef is a substring
-        auto currentData() const noexcept -> char const*;
-
-    private: // ownership queries - may not be consistent between calls
-        auto isOwned() const noexcept -> bool;
-        auto isSubstring() const noexcept -> bool;
-    };
-
-    auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string;
-    auto operator + ( StringRef const& lhs, char const* rhs ) -> std::string;
-    auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string;
-
-    auto operator += ( std::string& lhs, StringRef const& sr ) -> std::string&;
-    auto operator << ( std::ostream& os, StringRef const& sr ) -> std::ostream&;
-
-    inline auto operator "" _sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
-        return StringRef( rawChars, size );
-    }
-
-} // namespace Catch
-
-// end catch_stringref.h
-namespace Catch {
-
-template<typename C>
-class TestInvokerAsMethod : public ITestInvoker {
-    void (C::*m_testAsMethod)();
-public:
-    TestInvokerAsMethod( void (C::*testAsMethod)() ) noexcept : m_testAsMethod( testAsMethod ) {}
-
-    void invoke() const override {
-        C obj;
-        (obj.*m_testAsMethod)();
-    }
-};
-
-auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker*;
-
-template<typename C>
-auto makeTestInvoker( void (C::*testAsMethod)() ) noexcept -> ITestInvoker* {
-    return new(std::nothrow) TestInvokerAsMethod<C>( testAsMethod );
-}
-
-struct NameAndTags {
-    NameAndTags( StringRef const& name_ = StringRef(), StringRef const& tags_ = StringRef() ) noexcept;
-    StringRef name;
-    StringRef tags;
-};
-
-struct AutoReg : NonCopyable {
-    AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept;
-    ~AutoReg();
-};
-
-} // end namespace Catch
-
-#define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
-#define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO## __VA_ARGS__
-#define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
-#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
-
-#if defined(CATCH_CONFIG_DISABLE)
-    #define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
-        static void TestName()
-    #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
-        namespace{                        \
-            struct TestName : INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF ClassName) { \
-                void test();              \
-            };                            \
-        }                                 \
-        void TestName::test()
-
-#endif
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
-        static void TestName(); \
-        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
-        static void TestName()
-    #define INTERNAL_CATCH_TESTCASE( ... ) \
-        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), __VA_ARGS__ )
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
-        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
-        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        namespace{ \
-            struct TestName : INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF ClassName) { \
-                void test(); \
-            }; \
-            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
-        } \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
-        void TestName::test()
-    #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
-        INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, __VA_ARGS__ )
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
-        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
-
-// end catch_test_registry.h
-// start catch_capture.hpp
-
-// start catch_assertionhandler.h
-
-// start catch_assertioninfo.h
-
-// start catch_result_type.h
-
-namespace Catch {
-
-    // ResultWas::OfType enum
-    struct ResultWas { enum OfType {
-        Unknown = -1,
-        Ok = 0,
-        Info = 1,
-        Warning = 2,
-
-        FailureBit = 0x10,
-
-        ExpressionFailed = FailureBit | 1,
-        ExplicitFailure = FailureBit | 2,
-
-        Exception = 0x100 | FailureBit,
-
-        ThrewException = Exception | 1,
-        DidntThrowException = Exception | 2,
-
-        FatalErrorCondition = 0x200 | FailureBit
-
-    }; };
-
-    bool isOk( ResultWas::OfType resultType );
-    bool isJustInfo( int flags );
-
-    // ResultDisposition::Flags enum
-    struct ResultDisposition { enum Flags {
-        Normal = 0x01,
-
-        ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
-        FalseTest = 0x04,           // Prefix expression with !
-        SuppressFail = 0x08         // Failures are reported but do not fail the test
-    }; };
-
-    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs );
-
-    bool shouldContinueOnFailure( int flags );
-    inline bool isFalseTest( int flags ) { return ( flags & ResultDisposition::FalseTest ) != 0; }
-    bool shouldSuppressFailure( int flags );
-
-} // end namespace Catch
-
-// end catch_result_type.h
-namespace Catch {
-
-    struct AssertionInfo
-    {
-        StringRef macroName;
-        SourceLineInfo lineInfo;
-        StringRef capturedExpression;
-        ResultDisposition::Flags resultDisposition;
-
-        // We want to delete this constructor but a compiler bug in 4.8 means
-        // the struct is then treated as non-aggregate
-        //AssertionInfo() = delete;
-    };
-
-} // end namespace Catch
-
-// end catch_assertioninfo.h
-// start catch_decomposer.h
-
-// start catch_tostring.h
-
-#include <vector>
-#include <cstddef>
-#include <type_traits>
-#include <string>
-// start catch_stream.h
-
-#include <iosfwd>
-#include <cstddef>
-#include <ostream>
-
-namespace Catch {
-
-    std::ostream& cout();
-    std::ostream& cerr();
-    std::ostream& clog();
-
-    class StringRef;
-
-    struct IStream {
-        virtual ~IStream();
-        virtual std::ostream& stream() const = 0;
-    };
-
-    auto makeStream( StringRef const &filename ) -> IStream const*;
-
-    class ReusableStringStream {
-        std::size_t m_index;
-        std::ostream* m_oss;
-    public:
-        ReusableStringStream();
-        ~ReusableStringStream();
-
-        auto str() const -> std::string;
-
-        template<typename T>
-        auto operator << ( T const& value ) -> ReusableStringStream& {
-            *m_oss << value;
-            return *this;
-        }
-        auto get() -> std::ostream& { return *m_oss; }
-
-        static void cleanup();
-    };
-}
-
-// end catch_stream.h
-
-#ifdef __OBJC__
-// start catch_objc_arc.hpp
-
-#import <Foundation/Foundation.h>
-
-#ifdef __has_feature
-#define CATCH_ARC_ENABLED __has_feature(objc_arc)
-#else
-#define CATCH_ARC_ENABLED 0
-#endif
-
-void arcSafeRelease( NSObject* obj );
-id performOptionalSelector( id obj, SEL sel );
-
-#if !CATCH_ARC_ENABLED
-inline void arcSafeRelease( NSObject* obj ) {
-    [obj release];
-}
-inline id performOptionalSelector( id obj, SEL sel ) {
-    if( [obj respondsToSelector: sel] )
-        return [obj performSelector: sel];
-    return nil;
-}
-#define CATCH_UNSAFE_UNRETAINED
-#define CATCH_ARC_STRONG
-#else
-inline void arcSafeRelease( NSObject* ){}
-inline id performOptionalSelector( id obj, SEL sel ) {
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
-#endif
-    if( [obj respondsToSelector: sel] )
-        return [obj performSelector: sel];
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-    return nil;
-}
-#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
-#define CATCH_ARC_STRONG __strong
-#endif
-
-// end catch_objc_arc.hpp
-#endif
-
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
-#endif
-
-// We need a dummy global operator<< so we can bring it into Catch namespace later
-struct Catch_global_namespace_dummy {};
-std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);
-
-namespace Catch {
-    // Bring in operator<< from global namespace into Catch namespace
-    using ::operator<<;
-
-    namespace Detail {
-
-        extern const std::string unprintableString;
-
-        std::string rawMemoryToString( const void *object, std::size_t size );
-
-        template<typename T>
-        std::string rawMemoryToString( const T& object ) {
-          return rawMemoryToString( &object, sizeof(object) );
-        }
-
-        template<typename T>
-        class IsStreamInsertable {
-            template<typename SS, typename TT>
-            static auto test(int)
-                -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());
-
-            template<typename, typename>
-            static auto test(...)->std::false_type;
-
-        public:
-            static const bool value = decltype(test<std::ostream, const T&>(0))::value;
-        };
-
-        template<typename E>
-        std::string convertUnknownEnumToString( E e );
-
-        template<typename T>
-        typename std::enable_if<
-            !std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
-        std::string>::type convertUnstreamable( T const& ) {
-            return Detail::unprintableString;
-        }
-        template<typename T>
-        typename std::enable_if<
-            !std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
-         std::string>::type convertUnstreamable(T const& ex) {
-            return ex.what();
-        }
-
-        template<typename T>
-        typename std::enable_if<
-            std::is_enum<T>::value
-        , std::string>::type convertUnstreamable( T const& value ) {
-            return convertUnknownEnumToString( value );
-        }
-
-#if defined(_MANAGED)
-        //! Convert a CLR string to a utf8 std::string
-        template<typename T>
-        std::string clrReferenceToString( T^ ref ) {
-            if (ref == nullptr)
-                return std::string("null");
-            auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
-            cli::pin_ptr<System::Byte> p = &bytes[0];
-            return std::string(reinterpret_cast<char const *>(p), bytes->Length);
-        }
-#endif
-
-    } // namespace Detail
-
-    // If we decide for C++14, change these to enable_if_ts
-    template <typename T, typename = void>
-    struct StringMaker {
-        template <typename Fake = T>
-        static
-        typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
-            convert(const Fake& value) {
-                ReusableStringStream rss;
-                // NB: call using the function-like syntax to avoid ambiguity with
-                // user-defined templated operator<< under clang.
-                rss.operator<<(value);
-                return rss.str();
-        }
-
-        template <typename Fake = T>
-        static
-        typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
-            convert( const Fake& value ) {
-#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
-            return Detail::convertUnstreamable(value);
-#else
-            return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
-#endif
-        }
-    };
-
-    namespace Detail {
-
-        // This function dispatches all stringification requests inside of Catch.
-        // Should be preferably called fully qualified, like ::Catch::Detail::stringify
-        template <typename T>
-        std::string stringify(const T& e) {
-            return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
-        }
-
-        template<typename E>
-        std::string convertUnknownEnumToString( E e ) {
-            return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<E>::type>(e));
-        }
-
-#if defined(_MANAGED)
-        template <typename T>
-        std::string stringify( T^ e ) {
-            return ::Catch::StringMaker<T^>::convert(e);
-        }
-#endif
-
-    } // namespace Detail
-
-    // Some predefined specializations
-
-    template<>
-    struct StringMaker<std::string> {
-        static std::string convert(const std::string& str);
-    };
-#ifdef CATCH_CONFIG_WCHAR
-    template<>
-    struct StringMaker<std::wstring> {
-        static std::string convert(const std::wstring& wstr);
-    };
-#endif
-
-    template<>
-    struct StringMaker<char const *> {
-        static std::string convert(char const * str);
-    };
-    template<>
-    struct StringMaker<char *> {
-        static std::string convert(char * str);
-    };
-
-#ifdef CATCH_CONFIG_WCHAR
-    template<>
-    struct StringMaker<wchar_t const *> {
-        static std::string convert(wchar_t const * str);
-    };
-    template<>
-    struct StringMaker<wchar_t *> {
-        static std::string convert(wchar_t * str);
-    };
-#endif
-
-    // TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
-    //      while keeping string semantics?
-    template<int SZ>
-    struct StringMaker<char[SZ]> {
-        static std::string convert(char const* str) {
-            return ::Catch::Detail::stringify(std::string{ str });
-        }
-    };
-    template<int SZ>
-    struct StringMaker<signed char[SZ]> {
-        static std::string convert(signed char const* str) {
-            return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
-        }
-    };
-    template<int SZ>
-    struct StringMaker<unsigned char[SZ]> {
-        static std::string convert(unsigned char const* str) {
-            return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
-        }
-    };
-
-    template<>
-    struct StringMaker<int> {
-        static std::string convert(int value);
-    };
-    template<>
-    struct StringMaker<long> {
-        static std::string convert(long value);
-    };
-    template<>
-    struct StringMaker<long long> {
-        static std::string convert(long long value);
-    };
-    template<>
-    struct StringMaker<unsigned int> {
-        static std::string convert(unsigned int value);
-    };
-    template<>
-    struct StringMaker<unsigned long> {
-        static std::string convert(unsigned long value);
-    };
-    template<>
-    struct StringMaker<unsigned long long> {
-        static std::string convert(unsigned long long value);
-    };
-
-    template<>
-    struct StringMaker<bool> {
-        static std::string convert(bool b);
-    };
-
-    template<>
-    struct StringMaker<char> {
-        static std::string convert(char c);
-    };
-    template<>
-    struct StringMaker<signed char> {
-        static std::string convert(signed char c);
-    };
-    template<>
-    struct StringMaker<unsigned char> {
-        static std::string convert(unsigned char c);
-    };
-
-    template<>
-    struct StringMaker<std::nullptr_t> {
-        static std::string convert(std::nullptr_t);
-    };
-
-    template<>
-    struct StringMaker<float> {
-        static std::string convert(float value);
-    };
-    template<>
-    struct StringMaker<double> {
-        static std::string convert(double value);
-    };
-
-    template <typename T>
-    struct StringMaker<T*> {
-        template <typename U>
-        static std::string convert(U* p) {
-            if (p) {
-                return ::Catch::Detail::rawMemoryToString(p);
-            } else {
-                return "nullptr";
-            }
-        }
-    };
-
-    template <typename R, typename C>
-    struct StringMaker<R C::*> {
-        static std::string convert(R C::* p) {
-            if (p) {
-                return ::Catch::Detail::rawMemoryToString(p);
-            } else {
-                return "nullptr";
-            }
-        }
-    };
-
-#if defined(_MANAGED)
-    template <typename T>
-    struct StringMaker<T^> {
-        static std::string convert( T^ ref ) {
-            return ::Catch::Detail::clrReferenceToString(ref);
-        }
-    };
-#endif
-
-    namespace Detail {
-        template<typename InputIterator>
-        std::string rangeToString(InputIterator first, InputIterator last) {
-            ReusableStringStream rss;
-            rss << "{ ";
-            if (first != last) {
-                rss << ::Catch::Detail::stringify(*first);
-                for (++first; first != last; ++first)
-                    rss << ", " << ::Catch::Detail::stringify(*first);
-            }
-            rss << " }";
-            return rss.str();
-        }
-    }
-
-#ifdef __OBJC__
-    template<>
-    struct StringMaker<NSString*> {
-        static std::string convert(NSString * nsstring) {
-            if (!nsstring)
-                return "nil";
-            return std::string("@") + [nsstring UTF8String];
-        }
-    };
-    template<>
-    struct StringMaker<NSObject*> {
-        static std::string convert(NSObject* nsObject) {
-            return ::Catch::Detail::stringify([nsObject description]);
-        }
-
-    };
-    namespace Detail {
-        inline std::string stringify( NSString* nsstring ) {
-            return StringMaker<NSString*>::convert( nsstring );
-        }
-
-    } // namespace Detail
-#endif // __OBJC__
-
-} // namespace Catch
-
-//////////////////////////////////////////////////////
-// Separate std-lib types stringification, so it can be selectively enabled
-// This means that we do not bring in
-
-#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
-#  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
-#  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
-#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
-#endif
-
-// Separate std::pair specialization
-#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
-#include <utility>
-namespace Catch {
-    template<typename T1, typename T2>
-    struct StringMaker<std::pair<T1, T2> > {
-        static std::string convert(const std::pair<T1, T2>& pair) {
-            ReusableStringStream rss;
-            rss << "{ "
-                << ::Catch::Detail::stringify(pair.first)
-                << ", "
-                << ::Catch::Detail::stringify(pair.second)
-                << " }";
-            return rss.str();
-        }
-    };
-}
-#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
-
-// Separate std::tuple specialization
-#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
-#include <tuple>
-namespace Catch {
-    namespace Detail {
-        template<
-            typename Tuple,
-            std::size_t N = 0,
-            bool = (N < std::tuple_size<Tuple>::value)
-            >
-            struct TupleElementPrinter {
-            static void print(const Tuple& tuple, std::ostream& os) {
-                os << (N ? ", " : " ")
-                    << ::Catch::Detail::stringify(std::get<N>(tuple));
-                TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
-            }
-        };
-
-        template<
-            typename Tuple,
-            std::size_t N
-        >
-            struct TupleElementPrinter<Tuple, N, false> {
-            static void print(const Tuple&, std::ostream&) {}
-        };
-
-    }
-
-    template<typename ...Types>
-    struct StringMaker<std::tuple<Types...>> {
-        static std::string convert(const std::tuple<Types...>& tuple) {
-            ReusableStringStream rss;
-            rss << '{';
-            Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
-            rss << " }";
-            return rss.str();
-        }
-    };
-}
-#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
-
-namespace Catch {
-    struct not_this_one {}; // Tag type for detecting which begin/ end are being selected
-
-    // Import begin/ end from std here so they are considered alongside the fallback (...) overloads in this namespace
-    using std::begin;
-    using std::end;
-
-    not_this_one begin( ... );
-    not_this_one end( ... );
-
-    template <typename T>
-    struct is_range {
-        static const bool value =
-            !std::is_same<decltype(begin(std::declval<T>())), not_this_one>::value &&
-            !std::is_same<decltype(end(std::declval<T>())), not_this_one>::value;
-    };
-
-#if defined(_MANAGED) // Managed types are never ranges
-    template <typename T>
-    struct is_range<T^> {
-        static const bool value = false;
-    };
-#endif
-
-    template<typename Range>
-    std::string rangeToString( Range const& range ) {
-        return ::Catch::Detail::rangeToString( begin( range ), end( range ) );
-    }
-
-    // Handle vector<bool> specially
-    template<typename Allocator>
-    std::string rangeToString( std::vector<bool, Allocator> const& v ) {
-        ReusableStringStream rss;
-        rss << "{ ";
-        bool first = true;
-        for( bool b : v ) {
-            if( first )
-                first = false;
-            else
-                rss << ", ";
-            rss << ::Catch::Detail::stringify( b );
-        }
-        rss << " }";
-        return rss.str();
-    }
-
-    template<typename R>
-    struct StringMaker<R, typename std::enable_if<is_range<R>::value && !::Catch::Detail::IsStreamInsertable<R>::value>::type> {
-        static std::string convert( R const& range ) {
-            return rangeToString( range );
-        }
-    };
-
-    template <typename T, int SZ>
-    struct StringMaker<T[SZ]> {
-        static std::string convert(T const(&arr)[SZ]) {
-            return rangeToString(arr);
-        }
-    };
-
-} // namespace Catch
-
-// Separate std::chrono::duration specialization
-#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
-#include <ctime>
-#include <ratio>
-#include <chrono>
-
-namespace Catch {
-
-template <class Ratio>
-struct ratio_string {
-    static std::string symbol();
-};
-
-template <class Ratio>
-std::string ratio_string<Ratio>::symbol() {
-    Catch::ReusableStringStream rss;
-    rss << '[' << Ratio::num << '/'
-        << Ratio::den << ']';
-    return rss.str();
-}
-template <>
-struct ratio_string<std::atto> {
-    static std::string symbol();
-};
-template <>
-struct ratio_string<std::femto> {
-    static std::string symbol();
-};
-template <>
-struct ratio_string<std::pico> {
-    static std::string symbol();
-};
-template <>
-struct ratio_string<std::nano> {
-    static std::string symbol();
-};
-template <>
-struct ratio_string<std::micro> {
-    static std::string symbol();
-};
-template <>
-struct ratio_string<std::milli> {
-    static std::string symbol();
-};
-
-    ////////////
-    // std::chrono::duration specializations
-    template<typename Value, typename Ratio>
-    struct StringMaker<std::chrono::duration<Value, Ratio>> {
-        static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
-            ReusableStringStream rss;
-            rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
-            return rss.str();
-        }
-    };
-    template<typename Value>
-    struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
-        static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
-            ReusableStringStream rss;
-            rss << duration.count() << " s";
-            return rss.str();
-        }
-    };
-    template<typename Value>
-    struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
-        static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
-            ReusableStringStream rss;
-            rss << duration.count() << " m";
-            return rss.str();
-        }
-    };
-    template<typename Value>
-    struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
-        static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
-            ReusableStringStream rss;
-            rss << duration.count() << " h";
-            return rss.str();
-        }
-    };
-
-    ////////////
-    // std::chrono::time_point specialization
-    // Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
-    template<typename Clock, typename Duration>
-    struct StringMaker<std::chrono::time_point<Clock, Duration>> {
-        static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
-            return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
-        }
-    };
-    // std::chrono::time_point<system_clock> specialization
-    template<typename Duration>
-    struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
-        static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
-            auto converted = std::chrono::system_clock::to_time_t(time_point);
-
-#ifdef _MSC_VER
-            std::tm timeInfo = {};
-            gmtime_s(&timeInfo, &converted);
-#else
-            std::tm* timeInfo = std::gmtime(&converted);
-#endif
-
-            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
-            char timeStamp[timeStampSize];
-            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
-
-#ifdef _MSC_VER
-            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
-#else
-            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
-#endif
-            return std::string(timeStamp);
-        }
-    };
-}
-#endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-// end catch_tostring.h
-#include <iosfwd>
-
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
-#pragma warning(disable:4018) // more "signed/unsigned mismatch"
-#pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
-#pragma warning(disable:4180) // qualifier applied to function type has no meaning
-#endif
-
-namespace Catch {
-
-    struct ITransientExpression {
-        auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
-        auto getResult() const -> bool { return m_result; }
-        virtual void streamReconstructedExpression( std::ostream &os ) const = 0;
-
-        ITransientExpression( bool isBinaryExpression, bool result )
-        :   m_isBinaryExpression( isBinaryExpression ),
-            m_result( result )
-        {}
-
-        // We don't actually need a virtual destructor, but many static analysers
-        // complain if it's not here :-(
-        virtual ~ITransientExpression();
-
-        bool m_isBinaryExpression;
-        bool m_result;
-
-    };
-
-    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );
-
-    template<typename LhsT, typename RhsT>
-    class BinaryExpr  : public ITransientExpression {
-        LhsT m_lhs;
-        StringRef m_op;
-        RhsT m_rhs;
-
-        void streamReconstructedExpression( std::ostream &os ) const override {
-            formatReconstructedExpression
-                    ( os, Catch::Detail::stringify( m_lhs ), m_op, Catch::Detail::stringify( m_rhs ) );
-        }
-
-    public:
-        BinaryExpr( bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs )
-        :   ITransientExpression{ true, comparisonResult },
-            m_lhs( lhs ),
-            m_op( op ),
-            m_rhs( rhs )
-        {}
-    };
-
-    template<typename LhsT>
-    class UnaryExpr : public ITransientExpression {
-        LhsT m_lhs;
-
-        void streamReconstructedExpression( std::ostream &os ) const override {
-            os << Catch::Detail::stringify( m_lhs );
-        }
-
-    public:
-        explicit UnaryExpr( LhsT lhs )
-        :   ITransientExpression{ false, lhs ? true : false },
-            m_lhs( lhs )
-        {}
-    };
-
-    // Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
-    template<typename LhsT, typename RhsT>
-    auto compareEqual( LhsT const& lhs, RhsT const& rhs ) -> bool { return static_cast<bool>(lhs == rhs); }
-    template<typename T>
-    auto compareEqual( T* const& lhs, int rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
-    template<typename T>
-    auto compareEqual( T* const& lhs, long rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
-    template<typename T>
-    auto compareEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
-    template<typename T>
-    auto compareEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
-
-    template<typename LhsT, typename RhsT>
-    auto compareNotEqual( LhsT const& lhs, RhsT&& rhs ) -> bool { return static_cast<bool>(lhs != rhs); }
-    template<typename T>
-    auto compareNotEqual( T* const& lhs, int rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
-    template<typename T>
-    auto compareNotEqual( T* const& lhs, long rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
-    template<typename T>
-    auto compareNotEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
-    template<typename T>
-    auto compareNotEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
-
-    template<typename LhsT>
-    class ExprLhs {
-        LhsT m_lhs;
-    public:
-        explicit ExprLhs( LhsT lhs ) : m_lhs( lhs ) {}
-
-        template<typename RhsT>
-        auto operator == ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { compareEqual( m_lhs, rhs ), m_lhs, "==", rhs };
-        }
-        auto operator == ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
-            return { m_lhs == rhs, m_lhs, "==", rhs };
-        }
-
-        template<typename RhsT>
-        auto operator != ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { compareNotEqual( m_lhs, rhs ), m_lhs, "!=", rhs };
-        }
-        auto operator != ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
-            return { m_lhs != rhs, m_lhs, "!=", rhs };
-        }
-
-        template<typename RhsT>
-        auto operator > ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs };
-        }
-        template<typename RhsT>
-        auto operator < ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs };
-        }
-        template<typename RhsT>
-        auto operator >= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs };
-        }
-        template<typename RhsT>
-        auto operator <= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
-            return { static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs };
-        }
-
-        auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
-            return UnaryExpr<LhsT>{ m_lhs };
-        }
-    };
-
-    void handleExpression( ITransientExpression const& expr );
-
-    template<typename T>
-    void handleExpression( ExprLhs<T> const& expr ) {
-        handleExpression( expr.makeUnaryExpr() );
-    }
-
-    struct Decomposer {
-        template<typename T>
-        auto operator <= ( T const& lhs ) -> ExprLhs<T const&> {
-            return ExprLhs<T const&>{ lhs };
-        }
-
-        auto operator <=( bool value ) -> ExprLhs<bool> {
-            return ExprLhs<bool>{ value };
-        }
-    };
-
-} // end namespace Catch
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-// end catch_decomposer.h
-// start catch_interfaces_capture.h
-
-#include <string>
-
-namespace Catch {
-
-    class AssertionResult;
-    struct AssertionInfo;
-    struct SectionInfo;
-    struct SectionEndInfo;
-    struct MessageInfo;
-    struct Counts;
-    struct BenchmarkInfo;
-    struct BenchmarkStats;
-    struct AssertionReaction;
-
-    struct ITransientExpression;
-
-    struct IResultCapture {
-
-        virtual ~IResultCapture();
-
-        virtual bool sectionStarted(    SectionInfo const& sectionInfo,
-                                        Counts& assertions ) = 0;
-        virtual void sectionEnded( SectionEndInfo const& endInfo ) = 0;
-        virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) = 0;
-
-        virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
-        virtual void benchmarkEnded( BenchmarkStats const& stats ) = 0;
-
-        virtual void pushScopedMessage( MessageInfo const& message ) = 0;
-        virtual void popScopedMessage( MessageInfo const& message ) = 0;
-
-        virtual void handleFatalErrorCondition( StringRef message ) = 0;
-
-        virtual void handleExpr
-                (   AssertionInfo const& info,
-                    ITransientExpression const& expr,
-                    AssertionReaction& reaction ) = 0;
-        virtual void handleMessage
-                (   AssertionInfo const& info,
-                    ResultWas::OfType resultType,
-                    StringRef const& message,
-                    AssertionReaction& reaction ) = 0;
-        virtual void handleUnexpectedExceptionNotThrown
-                (   AssertionInfo const& info,
-                    AssertionReaction& reaction ) = 0;
-        virtual void handleUnexpectedInflightException
-                (   AssertionInfo const& info,
-                    std::string const& message,
-                    AssertionReaction& reaction ) = 0;
-        virtual void handleIncomplete
-                (   AssertionInfo const& info ) = 0;
-        virtual void handleNonExpr
-                (   AssertionInfo const &info,
-                    ResultWas::OfType resultType,
-                    AssertionReaction &reaction ) = 0;
-
-        virtual bool lastAssertionPassed() = 0;
-        virtual void assertionPassed() = 0;
-
-        // Deprecated, do not use:
-        virtual std::string getCurrentTestName() const = 0;
-        virtual const AssertionResult* getLastResult() const = 0;
-        virtual void exceptionEarlyReported() = 0;
-    };
-
-    IResultCapture& getResultCapture();
-}
-
-// end catch_interfaces_capture.h
-namespace Catch {
-
-    struct TestFailureException{};
-    struct AssertionResultData;
-    struct IResultCapture;
-    class RunContext;
-
-    class LazyExpression {
-        friend class AssertionHandler;
-        friend struct AssertionStats;
-        friend class RunContext;
-
-        ITransientExpression const* m_transientExpression = nullptr;
-        bool m_isNegated;
-    public:
-        LazyExpression( bool isNegated );
-        LazyExpression( LazyExpression const& other );
-        LazyExpression& operator = ( LazyExpression const& ) = delete;
-
-        explicit operator bool() const;
-
-        friend auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream&;
-    };
-
-    struct AssertionReaction {
-        bool shouldDebugBreak = false;
-        bool shouldThrow = false;
-    };
-
-    class AssertionHandler {
-        AssertionInfo m_assertionInfo;
-        AssertionReaction m_reaction;
-        bool m_completed = false;
-        IResultCapture& m_resultCapture;
-
-    public:
-        AssertionHandler
-            (   StringRef macroName,
-                SourceLineInfo const& lineInfo,
-                StringRef capturedExpression,
-                ResultDisposition::Flags resultDisposition );
-        ~AssertionHandler() {
-            if ( !m_completed ) {
-                m_resultCapture.handleIncomplete( m_assertionInfo );
-            }
-        }
-
-        template<typename T>
-        void handleExpr( ExprLhs<T> const& expr ) {
-            handleExpr( expr.makeUnaryExpr() );
-        }
-        void handleExpr( ITransientExpression const& expr );
-
-        void handleMessage(ResultWas::OfType resultType, StringRef const& message);
-
-        void handleExceptionThrownAsExpected();
-        void handleUnexpectedExceptionNotThrown();
-        void handleExceptionNotThrownAsExpected();
-        void handleThrowingCallSkipped();
-        void handleUnexpectedInflightException();
-
-        void complete();
-        void setCompleted();
-
-        // query
-        auto allowThrows() const -> bool;
-    };
-
-    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString );
-
-} // namespace Catch
-
-// end catch_assertionhandler.h
-// start catch_message.h
-
-#include <string>
-
-namespace Catch {
-
-    struct MessageInfo {
-        MessageInfo(    std::string const& _macroName,
-                        SourceLineInfo const& _lineInfo,
-                        ResultWas::OfType _type );
-
-        std::string macroName;
-        std::string message;
-        SourceLineInfo lineInfo;
-        ResultWas::OfType type;
-        unsigned int sequence;
-
-        bool operator == ( MessageInfo const& other ) const;
-        bool operator < ( MessageInfo const& other ) const;
-    private:
-        static unsigned int globalCount;
-    };
-
-    struct MessageStream {
-
-        template<typename T>
-        MessageStream& operator << ( T const& value ) {
-            m_stream << value;
-            return *this;
-        }
-
-        ReusableStringStream m_stream;
-    };
-
-    struct MessageBuilder : MessageStream {
-        MessageBuilder( std::string const& macroName,
-                        SourceLineInfo const& lineInfo,
-                        ResultWas::OfType type );
-
-        template<typename T>
-        MessageBuilder& operator << ( T const& value ) {
-            m_stream << value;
-            return *this;
-        }
-
-        MessageInfo m_info;
-    };
-
-    class ScopedMessage {
-    public:
-        explicit ScopedMessage( MessageBuilder const& builder );
-        ~ScopedMessage();
-
-        MessageInfo m_info;
-    };
-
-} // end namespace Catch
-
-// end catch_message.h
-#if !defined(CATCH_CONFIG_DISABLE)
-
-#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
-  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
-#else
-  #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
-#endif
-
-#if defined(CATCH_CONFIG_FAST_COMPILE)
-
-///////////////////////////////////////////////////////////////////////////////
-// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
-// macros.
-#define INTERNAL_CATCH_TRY
-#define INTERNAL_CATCH_CATCH( capturer )
-
-#else // CATCH_CONFIG_FAST_COMPILE
-
-#define INTERNAL_CATCH_TRY try
-#define INTERNAL_CATCH_CATCH( handler ) catch(...) { handler.handleUnexpectedInflightException(); }
-
-#endif
-
-#define INTERNAL_CATCH_REACT( handler ) handler.complete();
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
-        INTERNAL_CATCH_TRY { \
-            CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
-            catchAssertionHandler.handleExpr( Catch::Decomposer() <= __VA_ARGS__ ); \
-            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
-        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( (void)0, false && static_cast<bool>( !!(__VA_ARGS__) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
-    // The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
-    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
-    if( Catch::getResultCapture().lastAssertionPassed() )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
-    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
-    if( !Catch::getResultCapture().lastAssertionPassed() )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
-        try { \
-            static_cast<void>(__VA_ARGS__); \
-            catchAssertionHandler.handleExceptionNotThrownAsExpected(); \
-        } \
-        catch( ... ) { \
-            catchAssertionHandler.handleUnexpectedInflightException(); \
-        } \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
-        if( catchAssertionHandler.allowThrows() ) \
-            try { \
-                static_cast<void>(__VA_ARGS__); \
-                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
-            } \
-            catch( ... ) { \
-                catchAssertionHandler.handleExceptionThrownAsExpected(); \
-            } \
-        else \
-            catchAssertionHandler.handleThrowingCallSkipped(); \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
-        if( catchAssertionHandler.allowThrows() ) \
-            try { \
-                static_cast<void>(expr); \
-                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
-            } \
-            catch( exceptionType const& ) { \
-                catchAssertionHandler.handleExceptionThrownAsExpected(); \
-            } \
-            catch( ... ) { \
-                catchAssertionHandler.handleUnexpectedInflightException(); \
-            } \
-        else \
-            catchAssertionHandler.handleThrowingCallSkipped(); \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
-        catchAssertionHandler.handleMessage( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_INFO( macroName, log ) \
-    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log );
-
-///////////////////////////////////////////////////////////////////////////////
-// Although this is matcher-based, it can be used with just a string
-#define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
-        if( catchAssertionHandler.allowThrows() ) \
-            try { \
-                static_cast<void>(__VA_ARGS__); \
-                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
-            } \
-            catch( ... ) { \
-                Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher ); \
-            } \
-        else \
-            catchAssertionHandler.handleThrowingCallSkipped(); \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-#endif // CATCH_CONFIG_DISABLE
-
-// end catch_capture.hpp
-// start catch_section.h
-
-// start catch_section_info.h
-
-// start catch_totals.h
-
-#include <cstddef>
-
-namespace Catch {
-
-    struct Counts {
-        Counts operator - ( Counts const& other ) const;
-        Counts& operator += ( Counts const& other );
-
-        std::size_t total() const;
-        bool allPassed() const;
-        bool allOk() const;
-
-        std::size_t passed = 0;
-        std::size_t failed = 0;
-        std::size_t failedButOk = 0;
-    };
-
-    struct Totals {
-
-        Totals operator - ( Totals const& other ) const;
-        Totals& operator += ( Totals const& other );
-
-        Totals delta( Totals const& prevTotals ) const;
-
-        int error = 0;
-        Counts assertions;
-        Counts testCases;
-    };
-}
-
-// end catch_totals.h
-#include <string>
-
-namespace Catch {
-
-    struct SectionInfo {
-        SectionInfo
-            (   SourceLineInfo const& _lineInfo,
-                std::string const& _name,
-                std::string const& _description = std::string() );
-
-        std::string name;
-        std::string description;
-        SourceLineInfo lineInfo;
-    };
-
-    struct SectionEndInfo {
-        SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds );
-
-        SectionInfo sectionInfo;
-        Counts prevAssertions;
-        double durationInSeconds;
-    };
-
-} // end namespace Catch
-
-// end catch_section_info.h
-// start catch_timer.h
-
-#include <cstdint>
-
-namespace Catch {
-
-    auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
-    auto getEstimatedClockResolution() -> uint64_t;
-
-    class Timer {
-        uint64_t m_nanoseconds = 0;
-    public:
-        void start();
-        auto getElapsedNanoseconds() const -> uint64_t;
-        auto getElapsedMicroseconds() const -> uint64_t;
-        auto getElapsedMilliseconds() const -> unsigned int;
-        auto getElapsedSeconds() const -> double;
-    };
-
-} // namespace Catch
-
-// end catch_timer.h
-#include <string>
-
-namespace Catch {
-
-    class Section : NonCopyable {
-    public:
-        Section( SectionInfo const& info );
-        ~Section();
-
-        // This indicates whether the section should be executed or not
-        explicit operator bool() const;
-
-    private:
-        SectionInfo m_info;
-
-        std::string m_name;
-        Counts m_assertions;
-        bool m_sectionIncluded;
-        Timer m_timer;
-    };
-
-} // end namespace Catch
-
-    #define INTERNAL_CATCH_SECTION( ... ) \
-        if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) )
-
-// end catch_section.h
-// start catch_benchmark.h
-
-#include <cstdint>
-#include <string>
-
-namespace Catch {
-
-    class BenchmarkLooper {
-
-        std::string m_name;
-        std::size_t m_count = 0;
-        std::size_t m_iterationsToRun = 1;
-        uint64_t m_resolution;
-        Timer m_timer;
-
-        static auto getResolution() -> uint64_t;
-    public:
-        // Keep most of this inline as it's on the code path that is being timed
-        BenchmarkLooper( StringRef name )
-        :   m_name( name ),
-            m_resolution( getResolution() )
-        {
-            reportStart();
-            m_timer.start();
-        }
-
-        explicit operator bool() {
-            if( m_count < m_iterationsToRun )
-                return true;
-            return needsMoreIterations();
-        }
-
-        void increment() {
-            ++m_count;
-        }
-
-        void reportStart();
-        auto needsMoreIterations() -> bool;
-    };
-
-} // end namespace Catch
-
-#define BENCHMARK( name ) \
-    for( Catch::BenchmarkLooper looper( name ); looper; looper.increment() )
-
-// end catch_benchmark.h
-// start catch_interfaces_exception.h
-
-// start catch_interfaces_registry_hub.h
-
-#include <string>
-#include <memory>
-
-namespace Catch {
-
-    class TestCase;
-    struct ITestCaseRegistry;
-    struct IExceptionTranslatorRegistry;
-    struct IExceptionTranslator;
-    struct IReporterRegistry;
-    struct IReporterFactory;
-    struct ITagAliasRegistry;
-    class StartupExceptionRegistry;
-
-    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
-
-    struct IRegistryHub {
-        virtual ~IRegistryHub();
-
-        virtual IReporterRegistry const& getReporterRegistry() const = 0;
-        virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
-        virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;
-
-        virtual IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() = 0;
-
-        virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
-    };
-
-    struct IMutableRegistryHub {
-        virtual ~IMutableRegistryHub();
-        virtual void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) = 0;
-        virtual void registerListener( IReporterFactoryPtr const& factory ) = 0;
-        virtual void registerTest( TestCase const& testInfo ) = 0;
-        virtual void registerTranslator( const IExceptionTranslator* translator ) = 0;
-        virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
-        virtual void registerStartupException() noexcept = 0;
-    };
-
-    IRegistryHub& getRegistryHub();
-    IMutableRegistryHub& getMutableRegistryHub();
-    void cleanUp();
-    std::string translateActiveException();
-
-}
-
-// end catch_interfaces_registry_hub.h
-#if defined(CATCH_CONFIG_DISABLE)
-    #define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
-        static std::string translatorName( signature )
-#endif
-
-#include <exception>
-#include <string>
-#include <vector>
-
-namespace Catch {
-    using exceptionTranslateFunction = std::string(*)();
-
-    struct IExceptionTranslator;
-    using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;
-
-    struct IExceptionTranslator {
-        virtual ~IExceptionTranslator();
-        virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const = 0;
-    };
-
-    struct IExceptionTranslatorRegistry {
-        virtual ~IExceptionTranslatorRegistry();
-
-        virtual std::string translateActiveException() const = 0;
-    };
-
-    class ExceptionTranslatorRegistrar {
-        template<typename T>
-        class ExceptionTranslator : public IExceptionTranslator {
-        public:
-
-            ExceptionTranslator( std::string(*translateFunction)( T& ) )
-            : m_translateFunction( translateFunction )
-            {}
-
-            std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const override {
-                try {
-                    if( it == itEnd )
-                        std::rethrow_exception(std::current_exception());
-                    else
-                        return (*it)->translate( it+1, itEnd );
-                }
-                catch( T& ex ) {
-                    return m_translateFunction( ex );
-                }
-            }
-
-        protected:
-            std::string(*m_translateFunction)( T& );
-        };
-
-    public:
-        template<typename T>
-        ExceptionTranslatorRegistrar( std::string(*translateFunction)( T& ) ) {
-            getMutableRegistryHub().registerTranslator
-                ( new ExceptionTranslator<T>( translateFunction ) );
-        }
-    };
-}
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
-    static std::string translatorName( signature ); \
-    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-    namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
-    static std::string translatorName( signature )
-
-#define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
-
-// end catch_interfaces_exception.h
-// start catch_approx.h
-
-#include <type_traits>
-#include <stdexcept>
-
-namespace Catch {
-namespace Detail {
-
-    class Approx {
-    private:
-        bool equalityComparisonImpl(double other) const;
-
-    public:
-        explicit Approx ( double value );
-
-        static Approx custom();
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        Approx operator()( T const& value ) {
-            Approx approx( static_cast<double>(value) );
-            approx.epsilon( m_epsilon );
-            approx.margin( m_margin );
-            approx.scale( m_scale );
-            return approx;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        explicit Approx( T const& value ): Approx(static_cast<double>(value))
-        {}
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator == ( const T& lhs, Approx const& rhs ) {
-            auto lhs_v = static_cast<double>(lhs);
-            return rhs.equalityComparisonImpl(lhs_v);
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator == ( Approx const& lhs, const T& rhs ) {
-            return operator==( rhs, lhs );
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator != ( T const& lhs, Approx const& rhs ) {
-            return !operator==( lhs, rhs );
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator != ( Approx const& lhs, T const& rhs ) {
-            return !operator==( rhs, lhs );
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator <= ( T const& lhs, Approx const& rhs ) {
-            return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator <= ( Approx const& lhs, T const& rhs ) {
-            return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator >= ( T const& lhs, Approx const& rhs ) {
-            return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        friend bool operator >= ( Approx const& lhs, T const& rhs ) {
-            return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        Approx& epsilon( T const& newEpsilon ) {
-            double epsilonAsDouble = static_cast<double>(newEpsilon);
-            if( epsilonAsDouble < 0 || epsilonAsDouble > 1.0 ) {
-                throw std::domain_error
-                    (   "Invalid Approx::epsilon: " +
-                        Catch::Detail::stringify( epsilonAsDouble ) +
-                        ", Approx::epsilon has to be between 0 and 1" );
-            }
-            m_epsilon = epsilonAsDouble;
-            return *this;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        Approx& margin( T const& newMargin ) {
-            double marginAsDouble = static_cast<double>(newMargin);
-            if( marginAsDouble < 0 ) {
-                throw std::domain_error
-                    (   "Invalid Approx::margin: " +
-                         Catch::Detail::stringify( marginAsDouble ) +
-                         ", Approx::Margin has to be non-negative." );
-
-            }
-            m_margin = marginAsDouble;
-            return *this;
-        }
-
-        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
-        Approx& scale( T const& newScale ) {
-            m_scale = static_cast<double>(newScale);
-            return *this;
-        }
-
-        std::string toString() const;
-
-    private:
-        double m_epsilon;
-        double m_margin;
-        double m_scale;
-        double m_value;
-    };
-}
-
-template<>
-struct StringMaker<Catch::Detail::Approx> {
-    static std::string convert(Catch::Detail::Approx const& value);
-};
-
-} // end namespace Catch
-
-// end catch_approx.h
-// start catch_string_manip.h
-
-#include <string>
-#include <iosfwd>
-
-namespace Catch {
-
-    bool startsWith( std::string const& s, std::string const& prefix );
-    bool startsWith( std::string const& s, char prefix );
-    bool endsWith( std::string const& s, std::string const& suffix );
-    bool endsWith( std::string const& s, char suffix );
-    bool contains( std::string const& s, std::string const& infix );
-    void toLowerInPlace( std::string& s );
-    std::string toLower( std::string const& s );
-    std::string trim( std::string const& str );
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
-
-    struct pluralise {
-        pluralise( std::size_t count, std::string const& label );
-
-        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
-
-        std::size_t m_count;
-        std::string m_label;
-    };
-}
-
-// end catch_string_manip.h
-#ifndef CATCH_CONFIG_DISABLE_MATCHERS
-// start catch_capture_matchers.h
-
-// start catch_matchers.h
-
-#include <string>
-#include <vector>
-
-namespace Catch {
-namespace Matchers {
-    namespace Impl {
-
-        template<typename ArgT> struct MatchAllOf;
-        template<typename ArgT> struct MatchAnyOf;
-        template<typename ArgT> struct MatchNotOf;
-
-        class MatcherUntypedBase {
-        public:
-            MatcherUntypedBase() = default;
-            MatcherUntypedBase ( MatcherUntypedBase const& ) = default;
-            MatcherUntypedBase& operator = ( MatcherUntypedBase const& ) = delete;
-            std::string toString() const;
-
-        protected:
-            virtual ~MatcherUntypedBase();
-            virtual std::string describe() const = 0;
-            mutable std::string m_cachedToString;
-        };
-
-        template<typename ObjectT>
-        struct MatcherMethod {
-            virtual bool match( ObjectT const& arg ) const = 0;
-        };
-        template<typename PtrT>
-        struct MatcherMethod<PtrT*> {
-            virtual bool match( PtrT* arg ) const = 0;
-        };
-
-        template<typename T>
-        struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {
-
-            MatchAllOf<T> operator && ( MatcherBase const& other ) const;
-            MatchAnyOf<T> operator || ( MatcherBase const& other ) const;
-            MatchNotOf<T> operator ! () const;
-        };
-
-        template<typename ArgT>
-        struct MatchAllOf : MatcherBase<ArgT> {
-            bool match( ArgT const& arg ) const override {
-                for( auto matcher : m_matchers ) {
-                    if (!matcher->match(arg))
-                        return false;
-                }
-                return true;
-            }
-            std::string describe() const override {
-                std::string description;
-                description.reserve( 4 + m_matchers.size()*32 );
-                description += "( ";
-                bool first = true;
-                for( auto matcher : m_matchers ) {
-                    if( first )
-                        first = false;
-                    else
-                        description += " and ";
-                    description += matcher->toString();
-                }
-                description += " )";
-                return description;
-            }
-
-            MatchAllOf<ArgT>& operator && ( MatcherBase<ArgT> const& other ) {
-                m_matchers.push_back( &other );
-                return *this;
-            }
-
-            std::vector<MatcherBase<ArgT> const*> m_matchers;
-        };
-        template<typename ArgT>
-        struct MatchAnyOf : MatcherBase<ArgT> {
-
-            bool match( ArgT const& arg ) const override {
-                for( auto matcher : m_matchers ) {
-                    if (matcher->match(arg))
-                        return true;
-                }
-                return false;
-            }
-            std::string describe() const override {
-                std::string description;
-                description.reserve( 4 + m_matchers.size()*32 );
-                description += "( ";
-                bool first = true;
-                for( auto matcher : m_matchers ) {
-                    if( first )
-                        first = false;
-                    else
-                        description += " or ";
-                    description += matcher->toString();
-                }
-                description += " )";
-                return description;
-            }
-
-            MatchAnyOf<ArgT>& operator || ( MatcherBase<ArgT> const& other ) {
-                m_matchers.push_back( &other );
-                return *this;
-            }
-
-            std::vector<MatcherBase<ArgT> const*> m_matchers;
-        };
-
-        template<typename ArgT>
-        struct MatchNotOf : MatcherBase<ArgT> {
-
-            MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ) : m_underlyingMatcher( underlyingMatcher ) {}
-
-            bool match( ArgT const& arg ) const override {
-                return !m_underlyingMatcher.match( arg );
-            }
-
-            std::string describe() const override {
-                return "not " + m_underlyingMatcher.toString();
-            }
-            MatcherBase<ArgT> const& m_underlyingMatcher;
-        };
-
-        template<typename T>
-        MatchAllOf<T> MatcherBase<T>::operator && ( MatcherBase const& other ) const {
-            return MatchAllOf<T>() && *this && other;
-        }
-        template<typename T>
-        MatchAnyOf<T> MatcherBase<T>::operator || ( MatcherBase const& other ) const {
-            return MatchAnyOf<T>() || *this || other;
-        }
-        template<typename T>
-        MatchNotOf<T> MatcherBase<T>::operator ! () const {
-            return MatchNotOf<T>( *this );
-        }
-
-    } // namespace Impl
-
-} // namespace Matchers
-
-using namespace Matchers;
-using Matchers::Impl::MatcherBase;
-
-} // namespace Catch
-
-// end catch_matchers.h
-// start catch_matchers_floating.h
-
-#include <type_traits>
-#include <cmath>
-
-namespace Catch {
-namespace Matchers {
-
-    namespace Floating {
-
-        enum class FloatingPointKind : uint8_t;
-
-        struct WithinAbsMatcher : MatcherBase<double> {
-            WithinAbsMatcher(double target, double margin);
-            bool match(double const& matchee) const override;
-            std::string describe() const override;
-        private:
-            double m_target;
-            double m_margin;
-        };
-
-        struct WithinUlpsMatcher : MatcherBase<double> {
-            WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
-            bool match(double const& matchee) const override;
-            std::string describe() const override;
-        private:
-            double m_target;
-            int m_ulps;
-            FloatingPointKind m_type;
-        };
-
-    } // namespace Floating
-
-    // The following functions create the actual matcher objects.
-    // This allows the types to be inferred
-    Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff);
-    Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff);
-    Floating::WithinAbsMatcher WithinAbs(double target, double margin);
-
-} // namespace Matchers
-} // namespace Catch
-
-// end catch_matchers_floating.h
-// start catch_matchers_generic.hpp
-
-#include <functional>
-#include <string>
-
-namespace Catch {
-namespace Matchers {
-namespace Generic {
-
-namespace Detail {
-    std::string finalizeDescription(const std::string& desc);
-}
-
-template <typename T>
-class PredicateMatcher : public MatcherBase<T> {
-    std::function<bool(T const&)> m_predicate;
-    std::string m_description;
-public:
-
-    PredicateMatcher(std::function<bool(T const&)> const& elem, std::string const& descr)
-        :m_predicate(std::move(elem)),
-        m_description(Detail::finalizeDescription(descr))
-    {}
-
-    bool match( T const& item ) const override {
-        return m_predicate(item);
-    }
-
-    std::string describe() const override {
-        return m_description;
-    }
-};
-
-} // namespace Generic
-
-    // The following functions create the actual matcher objects.
-    // The user has to explicitly specify type to the function, because
-    // infering std::function<bool(T const&)> is hard (but possible) and
-    // requires a lot of TMP.
-    template<typename T>
-    Generic::PredicateMatcher<T> Predicate(std::function<bool(T const&)> const& predicate, std::string const& description = "") {
-        return Generic::PredicateMatcher<T>(predicate, description);
-    }
-
-} // namespace Matchers
-} // namespace Catch
-
-// end catch_matchers_generic.hpp
-// start catch_matchers_string.h
-
-#include <string>
-
-namespace Catch {
-namespace Matchers {
-
-    namespace StdString {
-
-        struct CasedString
-        {
-            CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity );
-            std::string adjustString( std::string const& str ) const;
-            std::string caseSensitivitySuffix() const;
-
-            CaseSensitive::Choice m_caseSensitivity;
-            std::string m_str;
-        };
-
-        struct StringMatcherBase : MatcherBase<std::string> {
-            StringMatcherBase( std::string const& operation, CasedString const& comparator );
-            std::string describe() const override;
-
-            CasedString m_comparator;
-            std::string m_operation;
-        };
-
-        struct EqualsMatcher : StringMatcherBase {
-            EqualsMatcher( CasedString const& comparator );
-            bool match( std::string const& source ) const override;
-        };
-        struct ContainsMatcher : StringMatcherBase {
-            ContainsMatcher( CasedString const& comparator );
-            bool match( std::string const& source ) const override;
-        };
-        struct StartsWithMatcher : StringMatcherBase {
-            StartsWithMatcher( CasedString const& comparator );
-            bool match( std::string const& source ) const override;
-        };
-        struct EndsWithMatcher : StringMatcherBase {
-            EndsWithMatcher( CasedString const& comparator );
-            bool match( std::string const& source ) const override;
-        };
-
-        struct RegexMatcher : MatcherBase<std::string> {
-            RegexMatcher( std::string regex, CaseSensitive::Choice caseSensitivity );
-            bool match( std::string const& matchee ) const override;
-            std::string describe() const override;
-
-        private:
-            std::string m_regex;
-            CaseSensitive::Choice m_caseSensitivity;
-        };
-
-    } // namespace StdString
-
-    // The following functions create the actual matcher objects.
-    // This allows the types to be inferred
-
-    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
-    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
-    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
-    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
-    StdString::RegexMatcher Matches( std::string const& regex, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
-
-} // namespace Matchers
-} // namespace Catch
-
-// end catch_matchers_string.h
-// start catch_matchers_vector.h
-
-#include <algorithm>
-
-namespace Catch {
-namespace Matchers {
-
-    namespace Vector {
-        namespace Detail {
-            template <typename InputIterator, typename T>
-            size_t count(InputIterator first, InputIterator last, T const& item) {
-                size_t cnt = 0;
-                for (; first != last; ++first) {
-                    if (*first == item) {
-                        ++cnt;
-                    }
-                }
-                return cnt;
-            }
-            template <typename InputIterator, typename T>
-            bool contains(InputIterator first, InputIterator last, T const& item) {
-                for (; first != last; ++first) {
-                    if (*first == item) {
-                        return true;
-                    }
-                }
-                return false;
-            }
-        }
-
-        template<typename T>
-        struct ContainsElementMatcher : MatcherBase<std::vector<T>> {
-
-            ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}
-
-            bool match(std::vector<T> const &v) const override {
-                for (auto const& el : v) {
-                    if (el == m_comparator) {
-                        return true;
-                    }
-                }
-                return false;
-            }
-
-            std::string describe() const override {
-                return "Contains: " + ::Catch::Detail::stringify( m_comparator );
-            }
-
-            T const& m_comparator;
-        };
-
-        template<typename T>
-        struct ContainsMatcher : MatcherBase<std::vector<T>> {
-
-            ContainsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
-
-            bool match(std::vector<T> const &v) const override {
-                // !TBD: see note in EqualsMatcher
-                if (m_comparator.size() > v.size())
-                    return false;
-                for (auto const& comparator : m_comparator) {
-                    auto present = false;
-                    for (const auto& el : v) {
-                        if (el == comparator) {
-                            present = true;
-                            break;
-                        }
-                    }
-                    if (!present) {
-                        return false;
-                    }
-                }
-                return true;
-            }
-            std::string describe() const override {
-                return "Contains: " + ::Catch::Detail::stringify( m_comparator );
-            }
-
-            std::vector<T> const& m_comparator;
-        };
-
-        template<typename T>
-        struct EqualsMatcher : MatcherBase<std::vector<T>> {
-
-            EqualsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
-
-            bool match(std::vector<T> const &v) const override {
-                // !TBD: This currently works if all elements can be compared using !=
-                // - a more general approach would be via a compare template that defaults
-                // to using !=. but could be specialised for, e.g. std::vector<T> etc
-                // - then just call that directly
-                if (m_comparator.size() != v.size())
-                    return false;
-                for (std::size_t i = 0; i < v.size(); ++i)
-                    if (m_comparator[i] != v[i])
-                        return false;
-                return true;
-            }
-            std::string describe() const override {
-                return "Equals: " + ::Catch::Detail::stringify( m_comparator );
-            }
-            std::vector<T> const& m_comparator;
-        };
-
-        template<typename T>
-        struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
-            UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
-            bool match(std::vector<T> const& vec) const override {
-                // Note: This is a reimplementation of std::is_permutation,
-                //       because I don't want to include <algorithm> inside the common path
-                if (m_target.size() != vec.size()) {
-                    return false;
-                }
-                auto lfirst = m_target.begin(), llast = m_target.end();
-                auto rfirst = vec.begin(), rlast = vec.end();
-                // Cut common prefix to optimize checking of permuted parts
-                while (lfirst != llast && *lfirst != *rfirst) {
-                    ++lfirst; ++rfirst;
-                }
-                if (lfirst == llast) {
-                    return true;
-                }
-
-                for (auto mid = lfirst; mid != llast; ++mid) {
-                    // Skip already counted items
-                    if (Detail::contains(lfirst, mid, *mid)) {
-                        continue;
-                    }
-                    size_t num_vec = Detail::count(rfirst, rlast, *mid);
-                    if (num_vec == 0 || Detail::count(lfirst, llast, *mid) != num_vec) {
-                        return false;
-                    }
-                }
-
-                return true;
-            }
-
-            std::string describe() const override {
-                return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
-            }
-        private:
-            std::vector<T> const& m_target;
-        };
-
-    } // namespace Vector
-
-    // The following functions create the actual matcher objects.
-    // This allows the types to be inferred
-
-    template<typename T>
-    Vector::ContainsMatcher<T> Contains( std::vector<T> const& comparator ) {
-        return Vector::ContainsMatcher<T>( comparator );
-    }
-
-    template<typename T>
-    Vector::ContainsElementMatcher<T> VectorContains( T const& comparator ) {
-        return Vector::ContainsElementMatcher<T>( comparator );
-    }
-
-    template<typename T>
-    Vector::EqualsMatcher<T> Equals( std::vector<T> const& comparator ) {
-        return Vector::EqualsMatcher<T>( comparator );
-    }
-
-    template<typename T>
-    Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const& target) {
-        return Vector::UnorderedEqualsMatcher<T>(target);
-    }
-
-} // namespace Matchers
-} // namespace Catch
-
-// end catch_matchers_vector.h
-namespace Catch {
-
-    template<typename ArgT, typename MatcherT>
-    class MatchExpr : public ITransientExpression {
-        ArgT const& m_arg;
-        MatcherT m_matcher;
-        StringRef m_matcherString;
-    public:
-        MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString )
-        :   ITransientExpression{ true, matcher.match( arg ) },
-            m_arg( arg ),
-            m_matcher( matcher ),
-            m_matcherString( matcherString )
-        {}
-
-        void streamReconstructedExpression( std::ostream &os ) const override {
-            auto matcherAsString = m_matcher.toString();
-            os << Catch::Detail::stringify( m_arg ) << ' ';
-            if( matcherAsString == Detail::unprintableString )
-                os << m_matcherString;
-            else
-                os << matcherAsString;
-        }
-    };
-
-    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
-
-    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  );
-
-    template<typename ArgT, typename MatcherT>
-    auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString  ) -> MatchExpr<ArgT, MatcherT> {
-        return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
-    }
-
-} // namespace Catch
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
-        INTERNAL_CATCH_TRY { \
-            catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher, #matcher ) ); \
-        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
-    do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
-        if( catchAssertionHandler.allowThrows() ) \
-            try { \
-                static_cast<void>(__VA_ARGS__ ); \
-                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
-            } \
-            catch( exceptionType const& ex ) { \
-                catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher, #matcher ) ); \
-            } \
-            catch( ... ) { \
-                catchAssertionHandler.handleUnexpectedInflightException(); \
-            } \
-        else \
-            catchAssertionHandler.handleThrowingCallSkipped(); \
-        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( false )
-
-// end catch_capture_matchers.h
-#endif
-
-// These files are included here so the single_include script doesn't put them
-// in the conditionally compiled sections
-// start catch_test_case_info.h
-
-#include <string>
-#include <vector>
-#include <memory>
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
-
-namespace Catch {
-
-    struct ITestInvoker;
-
-    struct TestCaseInfo {
-        enum SpecialProperties{
-            None = 0,
-            IsHidden = 1 << 1,
-            ShouldFail = 1 << 2,
-            MayFail = 1 << 3,
-            Throws = 1 << 4,
-            NonPortable = 1 << 5,
-            Benchmark = 1 << 6
-        };
-
-        TestCaseInfo(   std::string const& _name,
-                        std::string const& _className,
-                        std::string const& _description,
-                        std::vector<std::string> const& _tags,
-                        SourceLineInfo const& _lineInfo );
-
-        friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );
-
-        bool isHidden() const;
-        bool throws() const;
-        bool okToFail() const;
-        bool expectedToFail() const;
-
-        std::string tagsAsString() const;
-
-        std::string name;
-        std::string className;
-        std::string description;
-        std::vector<std::string> tags;
-        std::vector<std::string> lcaseTags;
-        SourceLineInfo lineInfo;
-        SpecialProperties properties;
-    };
-
-    class TestCase : public TestCaseInfo {
-    public:
-
-        TestCase( ITestInvoker* testCase, TestCaseInfo&& info );
-
-        TestCase withName( std::string const& _newName ) const;
-
-        void invoke() const;
-
-        TestCaseInfo const& getTestCaseInfo() const;
-
-        bool operator == ( TestCase const& other ) const;
-        bool operator < ( TestCase const& other ) const;
-
-    private:
-        std::shared_ptr<ITestInvoker> test;
-    };
-
-    TestCase makeTestCase(  ITestInvoker* testCase,
-                            std::string const& className,
-                            NameAndTags const& nameAndTags,
-                            SourceLineInfo const& lineInfo );
-}
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// end catch_test_case_info.h
-// start catch_interfaces_runner.h
-
-namespace Catch {
-
-    struct IRunner {
-        virtual ~IRunner();
-        virtual bool aborting() const = 0;
-    };
-}
-
-// end catch_interfaces_runner.h
-
-#ifdef __OBJC__
-// start catch_objc.hpp
-
-#import <objc/runtime.h>
-
-#include <string>
-
-// NB. Any general catch headers included here must be included
-// in catch.hpp first to make sure they are included by the single
-// header for non obj-usage
-
-///////////////////////////////////////////////////////////////////////////////
-// This protocol is really only here for (self) documenting purposes, since
-// all its methods are optional.
-@protocol OcFixture
-
-@optional
-
--(void) setUp;
--(void) tearDown;
-
-@end
-
-namespace Catch {
-
-    class OcMethod : public ITestInvoker {
-
-    public:
-        OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}
-
-        virtual void invoke() const {
-            id obj = [[m_cls alloc] init];
-
-            performOptionalSelector( obj, @selector(setUp)  );
-            performOptionalSelector( obj, m_sel );
-            performOptionalSelector( obj, @selector(tearDown)  );
-
-            arcSafeRelease( obj );
-        }
-    private:
-        virtual ~OcMethod() {}
-
-        Class m_cls;
-        SEL m_sel;
-    };
-
-    namespace Detail{
-
-        inline std::string getAnnotation(   Class cls,
-                                            std::string const& annotationName,
-                                            std::string const& testCaseName ) {
-            NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
-            SEL sel = NSSelectorFromString( selStr );
-            arcSafeRelease( selStr );
-            id value = performOptionalSelector( cls, sel );
-            if( value )
-                return [(NSString*)value UTF8String];
-            return "";
-        }
-    }
-
-    inline std::size_t registerTestMethods() {
-        std::size_t noTestMethods = 0;
-        int noClasses = objc_getClassList( nullptr, 0 );
-
-        Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
-        objc_getClassList( classes, noClasses );
-
-        for( int c = 0; c < noClasses; c++ ) {
-            Class cls = classes[c];
-            {
-                u_int count;
-                Method* methods = class_copyMethodList( cls, &count );
-                for( u_int m = 0; m < count ; m++ ) {
-                    SEL selector = method_getName(methods[m]);
-                    std::string methodName = sel_getName(selector);
-                    if( startsWith( methodName, "Catch_TestCase_" ) ) {
-                        std::string testCaseName = methodName.substr( 15 );
-                        std::string name = Detail::getAnnotation( cls, "Name", testCaseName );
-                        std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
-                        const char* className = class_getName( cls );
-
-                        getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, name.c_str(), desc.c_str(), SourceLineInfo("",0) ) );
-                        noTestMethods++;
-                    }
-                }
-                free(methods);
-            }
-        }
-        return noTestMethods;
-    }
-
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-
-    namespace Matchers {
-        namespace Impl {
-        namespace NSStringMatchers {
-
-            struct StringHolder : MatcherBase<NSString*>{
-                StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
-                StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
-                StringHolder() {
-                    arcSafeRelease( m_substr );
-                }
-
-                bool match( NSString* arg ) const override {
-                    return false;
-                }
-
-                NSString* CATCH_ARC_STRONG m_substr;
-            };
-
-            struct Equals : StringHolder {
-                Equals( NSString* substr ) : StringHolder( substr ){}
-
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str isEqualToString:m_substr];
-                }
-
-                std::string describe() const override {
-                    return "equals string: " + Catch::Detail::stringify( m_substr );
-                }
-            };
-
-            struct Contains : StringHolder {
-                Contains( NSString* substr ) : StringHolder( substr ){}
-
-                bool match( NSString* str ) const {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location != NSNotFound;
-                }
-
-                std::string describe() const override {
-                    return "contains string: " + Catch::Detail::stringify( m_substr );
-                }
-            };
-
-            struct StartsWith : StringHolder {
-                StartsWith( NSString* substr ) : StringHolder( substr ){}
-
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location == 0;
-                }
-
-                std::string describe() const override {
-                    return "starts with: " + Catch::Detail::stringify( m_substr );
-                }
-            };
-            struct EndsWith : StringHolder {
-                EndsWith( NSString* substr ) : StringHolder( substr ){}
-
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location == [str length] - [m_substr length];
-                }
-
-                std::string describe() const override {
-                    return "ends with: " + Catch::Detail::stringify( m_substr );
-                }
-            };
-
-        } // namespace NSStringMatchers
-        } // namespace Impl
-
-        inline Impl::NSStringMatchers::Equals
-            Equals( NSString* substr ){ return Impl::NSStringMatchers::Equals( substr ); }
-
-        inline Impl::NSStringMatchers::Contains
-            Contains( NSString* substr ){ return Impl::NSStringMatchers::Contains( substr ); }
-
-        inline Impl::NSStringMatchers::StartsWith
-            StartsWith( NSString* substr ){ return Impl::NSStringMatchers::StartsWith( substr ); }
-
-        inline Impl::NSStringMatchers::EndsWith
-            EndsWith( NSString* substr ){ return Impl::NSStringMatchers::EndsWith( substr ); }
-
-    } // namespace Matchers
-
-    using namespace Matchers;
-
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-
-} // namespace Catch
-
-///////////////////////////////////////////////////////////////////////////////
-#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
-#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
-+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
-{ \
-return @ name; \
-} \
-+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
-{ \
-return @ desc; \
-} \
--(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )
-
-#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )
-
-// end catch_objc.hpp
-#endif
-
-#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
-// start catch_external_interfaces.h
-
-// start catch_reporter_bases.hpp
-
-// start catch_interfaces_reporter.h
-
-// start catch_config.hpp
-
-// start catch_test_spec_parser.h
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
-
-// start catch_test_spec.h
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
-
-// start catch_wildcard_pattern.h
-
-namespace Catch
-{
-    class WildcardPattern {
-        enum WildcardPosition {
-            NoWildcard = 0,
-            WildcardAtStart = 1,
-            WildcardAtEnd = 2,
-            WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
-        };
-
-    public:
-
-        WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
-        virtual ~WildcardPattern() = default;
-        virtual bool matches( std::string const& str ) const;
-
-    private:
-        std::string adjustCase( std::string const& str ) const;
-        CaseSensitive::Choice m_caseSensitivity;
-        WildcardPosition m_wildcard = NoWildcard;
-        std::string m_pattern;
-    };
-}
-
-// end catch_wildcard_pattern.h
-#include <string>
-#include <vector>
-#include <memory>
-
-namespace Catch {
-
-    class TestSpec {
-        struct Pattern {
-            virtual ~Pattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const = 0;
-        };
-        using PatternPtr = std::shared_ptr<Pattern>;
-
-        class NamePattern : public Pattern {
-        public:
-            NamePattern( std::string const& name );
-            virtual ~NamePattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            WildcardPattern m_wildcardPattern;
-        };
-
-        class TagPattern : public Pattern {
-        public:
-            TagPattern( std::string const& tag );
-            virtual ~TagPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            std::string m_tag;
-        };
-
-        class ExcludedPattern : public Pattern {
-        public:
-            ExcludedPattern( PatternPtr const& underlyingPattern );
-            virtual ~ExcludedPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            PatternPtr m_underlyingPattern;
-        };
-
-        struct Filter {
-            std::vector<PatternPtr> m_patterns;
-
-            bool matches( TestCaseInfo const& testCase ) const;
-        };
-
-    public:
-        bool hasFilters() const;
-        bool matches( TestCaseInfo const& testCase ) const;
-
-    private:
-        std::vector<Filter> m_filters;
-
-        friend class TestSpecParser;
-    };
-}
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// end catch_test_spec.h
-// start catch_interfaces_tag_alias_registry.h
-
-#include <string>
-
-namespace Catch {
-
-    struct TagAlias;
-
-    struct ITagAliasRegistry {
-        virtual ~ITagAliasRegistry();
-        // Nullptr if not present
-        virtual TagAlias const* find( std::string const& alias ) const = 0;
-        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
-
-        static ITagAliasRegistry const& get();
-    };
-
-} // end namespace Catch
-
-// end catch_interfaces_tag_alias_registry.h
-namespace Catch {
-
-    class TestSpecParser {
-        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
-        Mode m_mode = None;
-        bool m_exclusion = false;
-        std::size_t m_start = std::string::npos, m_pos = 0;
-        std::string m_arg;
-        std::vector<std::size_t> m_escapeChars;
-        TestSpec::Filter m_currentFilter;
-        TestSpec m_testSpec;
-        ITagAliasRegistry const* m_tagAliases = nullptr;
-
-    public:
-        TestSpecParser( ITagAliasRegistry const& tagAliases );
-
-        TestSpecParser& parse( std::string const& arg );
-        TestSpec testSpec();
-
-    private:
-        void visitChar( char c );
-        void startNewMode( Mode mode, std::size_t start );
-        void escape();
-        std::string subString() const;
-
-        template<typename T>
-        void addPattern() {
-            std::string token = subString();
-            for( std::size_t i = 0; i < m_escapeChars.size(); ++i )
-                token = token.substr( 0, m_escapeChars[i]-m_start-i ) + token.substr( m_escapeChars[i]-m_start-i+1 );
-            m_escapeChars.clear();
-            if( startsWith( token, "exclude:" ) ) {
-                m_exclusion = true;
-                token = token.substr( 8 );
-            }
-            if( !token.empty() ) {
-                TestSpec::PatternPtr pattern = std::make_shared<T>( token );
-                if( m_exclusion )
-                    pattern = std::make_shared<TestSpec::ExcludedPattern>( pattern );
-                m_currentFilter.m_patterns.push_back( pattern );
-            }
-            m_exclusion = false;
-            m_mode = None;
-        }
-
-        void addFilter();
-    };
-    TestSpec parseTestSpec( std::string const& arg );
-
-} // namespace Catch
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// end catch_test_spec_parser.h
-// start catch_interfaces_config.h
-
-#include <iosfwd>
-#include <string>
-#include <vector>
-#include <memory>
-
-namespace Catch {
-
-    enum class Verbosity {
-        Quiet = 0,
-        Normal,
-        High
-    };
-
-    struct WarnAbout { enum What {
-        Nothing = 0x00,
-        NoAssertions = 0x01,
-        NoTests = 0x02
-    }; };
-
-    struct ShowDurations { enum OrNot {
-        DefaultForReporter,
-        Always,
-        Never
-    }; };
-    struct RunTests { enum InWhatOrder {
-        InDeclarationOrder,
-        InLexicographicalOrder,
-        InRandomOrder
-    }; };
-    struct UseColour { enum YesOrNo {
-        Auto,
-        Yes,
-        No
-    }; };
-    struct WaitForKeypress { enum When {
-        Never,
-        BeforeStart = 1,
-        BeforeExit = 2,
-        BeforeStartAndExit = BeforeStart | BeforeExit
-    }; };
-
-    class TestSpec;
-
-    struct IConfig : NonCopyable {
-
-        virtual ~IConfig();
-
-        virtual bool allowThrows() const = 0;
-        virtual std::ostream& stream() const = 0;
-        virtual std::string name() const = 0;
-        virtual bool includeSuccessfulResults() const = 0;
-        virtual bool shouldDebugBreak() const = 0;
-        virtual bool warnAboutMissingAssertions() const = 0;
-        virtual bool warnAboutNoTests() const = 0;
-        virtual int abortAfter() const = 0;
-        virtual bool showInvisibles() const = 0;
-        virtual ShowDurations::OrNot showDurations() const = 0;
-        virtual TestSpec const& testSpec() const = 0;
-        virtual bool hasTestFilters() const = 0;
-        virtual RunTests::InWhatOrder runOrder() const = 0;
-        virtual unsigned int rngSeed() const = 0;
-        virtual int benchmarkResolutionMultiple() const = 0;
-        virtual UseColour::YesOrNo useColour() const = 0;
-        virtual std::vector<std::string> const& getSectionsToRun() const = 0;
-        virtual Verbosity verbosity() const = 0;
-    };
-
-    using IConfigPtr = std::shared_ptr<IConfig const>;
-}
-
-// end catch_interfaces_config.h
-// Libstdc++ doesn't like incomplete classes for unique_ptr
-
-#include <memory>
-#include <vector>
-#include <string>
-
-#ifndef CATCH_CONFIG_CONSOLE_WIDTH
-#define CATCH_CONFIG_CONSOLE_WIDTH 80
-#endif
-
-namespace Catch {
-
-    struct IStream;
-
-    struct ConfigData {
-        bool listTests = false;
-        bool listTags = false;
-        bool listReporters = false;
-        bool listTestNamesOnly = false;
-
-        bool showSuccessfulTests = false;
-        bool shouldDebugBreak = false;
-        bool noThrow = false;
-        bool showHelp = false;
-        bool showInvisibles = false;
-        bool filenamesAsTags = false;
-        bool libIdentify = false;
-
-        int abortAfter = -1;
-        unsigned int rngSeed = 0;
-        int benchmarkResolutionMultiple = 100;
-
-        Verbosity verbosity = Verbosity::Normal;
-        WarnAbout::What warnings = WarnAbout::Nothing;
-        ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
-        RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
-        UseColour::YesOrNo useColour = UseColour::Auto;
-        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
-
-        std::string outputFilename;
-        std::string name;
-        std::string processName;
-#ifndef CATCH_CONFIG_DEFAULT_REPORTER
-#define CATCH_CONFIG_DEFAULT_REPORTER "console"
-#endif
-        std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
-#undef CATCH_CONFIG_DEFAULT_REPORTER
-
-        std::vector<std::string> testsOrTags;
-        std::vector<std::string> sectionsToRun;
-    };
-
-    class Config : public IConfig {
-    public:
-
-        Config() = default;
-        Config( ConfigData const& data );
-        virtual ~Config() = default;
-
-        std::string const& getFilename() const;
-
-        bool listTests() const;
-        bool listTestNamesOnly() const;
-        bool listTags() const;
-        bool listReporters() const;
-
-        std::string getProcessName() const;
-        std::string const& getReporterName() const;
-
-        std::vector<std::string> const& getTestsOrTags() const;
-        std::vector<std::string> const& getSectionsToRun() const override;
-
-        virtual TestSpec const& testSpec() const override;
-        bool hasTestFilters() const override;
-
-        bool showHelp() const;
-
-        // IConfig interface
-        bool allowThrows() const override;
-        std::ostream& stream() const override;
-        std::string name() const override;
-        bool includeSuccessfulResults() const override;
-        bool warnAboutMissingAssertions() const override;
-        bool warnAboutNoTests() const override;
-        ShowDurations::OrNot showDurations() const override;
-        RunTests::InWhatOrder runOrder() const override;
-        unsigned int rngSeed() const override;
-        int benchmarkResolutionMultiple() const override;
-        UseColour::YesOrNo useColour() const override;
-        bool shouldDebugBreak() const override;
-        int abortAfter() const override;
-        bool showInvisibles() const override;
-        Verbosity verbosity() const override;
-
-    private:
-
-        IStream const* openStream();
-        ConfigData m_data;
-
-        std::unique_ptr<IStream const> m_stream;
-        TestSpec m_testSpec;
-        bool m_hasTestFilters = false;
-    };
-
-} // end namespace Catch
-
-// end catch_config.hpp
-// start catch_assertionresult.h
-
-#include <string>
-
-namespace Catch {
-
-    struct AssertionResultData
-    {
-        AssertionResultData() = delete;
-
-        AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );
-
-        std::string message;
-        mutable std::string reconstructedExpression;
-        LazyExpression lazyExpression;
-        ResultWas::OfType resultType;
-
-        std::string reconstructExpression() const;
-    };
-
-    class AssertionResult {
-    public:
-        AssertionResult() = delete;
-        AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
-
-        bool isOk() const;
-        bool succeeded() const;
-        ResultWas::OfType getResultType() const;
-        bool hasExpression() const;
-        bool hasMessage() const;
-        std::string getExpression() const;
-        std::string getExpressionInMacro() const;
-        bool hasExpandedExpression() const;
-        std::string getExpandedExpression() const;
-        std::string getMessage() const;
-        SourceLineInfo getSourceInfo() const;
-        StringRef getTestMacroName() const;
-
-    //protected:
-        AssertionInfo m_info;
-        AssertionResultData m_resultData;
-    };
-
-} // end namespace Catch
-
-// end catch_assertionresult.h
-// start catch_option.hpp
-
-namespace Catch {
-
-    // An optional type
-    template<typename T>
-    class Option {
-    public:
-        Option() : nullableValue( nullptr ) {}
-        Option( T const& _value )
-        : nullableValue( new( storage ) T( _value ) )
-        {}
-        Option( Option const& _other )
-        : nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
-        {}
-
-        ~Option() {
-            reset();
-        }
-
-        Option& operator= ( Option const& _other ) {
-            if( &_other != this ) {
-                reset();
-                if( _other )
-                    nullableValue = new( storage ) T( *_other );
-            }
-            return *this;
-        }
-        Option& operator = ( T const& _value ) {
-            reset();
-            nullableValue = new( storage ) T( _value );
-            return *this;
-        }
-
-        void reset() {
-            if( nullableValue )
-                nullableValue->~T();
-            nullableValue = nullptr;
-        }
-
-        T& operator*() { return *nullableValue; }
-        T const& operator*() const { return *nullableValue; }
-        T* operator->() { return nullableValue; }
-        const T* operator->() const { return nullableValue; }
-
-        T valueOr( T const& defaultValue ) const {
-            return nullableValue ? *nullableValue : defaultValue;
-        }
-
-        bool some() const { return nullableValue != nullptr; }
-        bool none() const { return nullableValue == nullptr; }
-
-        bool operator !() const { return nullableValue == nullptr; }
-        explicit operator bool() const {
-            return some();
-        }
-
-    private:
-        T *nullableValue;
-        alignas(alignof(T)) char storage[sizeof(T)];
-    };
-
-} // end namespace Catch
-
-// end catch_option.hpp
-#include <string>
-#include <iosfwd>
-#include <map>
-#include <set>
-#include <memory>
-
-namespace Catch {
-
-    struct ReporterConfig {
-        explicit ReporterConfig( IConfigPtr const& _fullConfig );
-
-        ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );
-
-        std::ostream& stream() const;
-        IConfigPtr fullConfig() const;
-
-    private:
-        std::ostream* m_stream;
-        IConfigPtr m_fullConfig;
-    };
-
-    struct ReporterPreferences {
-        bool shouldRedirectStdOut = false;
-    };
-
-    template<typename T>
-    struct LazyStat : Option<T> {
-        LazyStat& operator=( T const& _value ) {
-            Option<T>::operator=( _value );
-            used = false;
-            return *this;
-        }
-        void reset() {
-            Option<T>::reset();
-            used = false;
-        }
-        bool used = false;
-    };
-
-    struct TestRunInfo {
-        TestRunInfo( std::string const& _name );
-        std::string name;
-    };
-    struct GroupInfo {
-        GroupInfo(  std::string const& _name,
-                    std::size_t _groupIndex,
-                    std::size_t _groupsCount );
-
-        std::string name;
-        std::size_t groupIndex;
-        std::size_t groupsCounts;
-    };
-
-    struct AssertionStats {
-        AssertionStats( AssertionResult const& _assertionResult,
-                        std::vector<MessageInfo> const& _infoMessages,
-                        Totals const& _totals );
-
-        AssertionStats( AssertionStats const& )              = default;
-        AssertionStats( AssertionStats && )                  = default;
-        AssertionStats& operator = ( AssertionStats const& ) = default;
-        AssertionStats& operator = ( AssertionStats && )     = default;
-        virtual ~AssertionStats();
-
-        AssertionResult assertionResult;
-        std::vector<MessageInfo> infoMessages;
-        Totals totals;
-    };
-
-    struct SectionStats {
-        SectionStats(   SectionInfo const& _sectionInfo,
-                        Counts const& _assertions,
-                        double _durationInSeconds,
-                        bool _missingAssertions );
-        SectionStats( SectionStats const& )              = default;
-        SectionStats( SectionStats && )                  = default;
-        SectionStats& operator = ( SectionStats const& ) = default;
-        SectionStats& operator = ( SectionStats && )     = default;
-        virtual ~SectionStats();
-
-        SectionInfo sectionInfo;
-        Counts assertions;
-        double durationInSeconds;
-        bool missingAssertions;
-    };
-
-    struct TestCaseStats {
-        TestCaseStats(  TestCaseInfo const& _testInfo,
-                        Totals const& _totals,
-                        std::string const& _stdOut,
-                        std::string const& _stdErr,
-                        bool _aborting );
-
-        TestCaseStats( TestCaseStats const& )              = default;
-        TestCaseStats( TestCaseStats && )                  = default;
-        TestCaseStats& operator = ( TestCaseStats const& ) = default;
-        TestCaseStats& operator = ( TestCaseStats && )     = default;
-        virtual ~TestCaseStats();
-
-        TestCaseInfo testInfo;
-        Totals totals;
-        std::string stdOut;
-        std::string stdErr;
-        bool aborting;
-    };
-
-    struct TestGroupStats {
-        TestGroupStats( GroupInfo const& _groupInfo,
-                        Totals const& _totals,
-                        bool _aborting );
-        TestGroupStats( GroupInfo const& _groupInfo );
-
-        TestGroupStats( TestGroupStats const& )              = default;
-        TestGroupStats( TestGroupStats && )                  = default;
-        TestGroupStats& operator = ( TestGroupStats const& ) = default;
-        TestGroupStats& operator = ( TestGroupStats && )     = default;
-        virtual ~TestGroupStats();
-
-        GroupInfo groupInfo;
-        Totals totals;
-        bool aborting;
-    };
-
-    struct TestRunStats {
-        TestRunStats(   TestRunInfo const& _runInfo,
-                        Totals const& _totals,
-                        bool _aborting );
-
-        TestRunStats( TestRunStats const& )              = default;
-        TestRunStats( TestRunStats && )                  = default;
-        TestRunStats& operator = ( TestRunStats const& ) = default;
-        TestRunStats& operator = ( TestRunStats && )     = default;
-        virtual ~TestRunStats();
-
-        TestRunInfo runInfo;
-        Totals totals;
-        bool aborting;
-    };
-
-    struct BenchmarkInfo {
-        std::string name;
-    };
-    struct BenchmarkStats {
-        BenchmarkInfo info;
-        std::size_t iterations;
-        uint64_t elapsedTimeInNanoseconds;
-    };
-
-    struct IStreamingReporter {
-        virtual ~IStreamingReporter() = default;
-
-        // Implementing class must also provide the following static methods:
-        // static std::string getDescription();
-        // static std::set<Verbosity> getSupportedVerbosities()
-
-        virtual ReporterPreferences getPreferences() const = 0;
-
-        virtual void noMatchingTestCases( std::string const& spec ) = 0;
-
-        virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
-        virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;
-
-        virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
-        virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;
-
-        // *** experimental ***
-        virtual void benchmarkStarting( BenchmarkInfo const& ) {}
-
-        virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;
-
-        // The return value indicates if the messages buffer should be cleared:
-        virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;
-
-        // *** experimental ***
-        virtual void benchmarkEnded( BenchmarkStats const& ) {}
-
-        virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
-        virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;
-
-        virtual void skipTest( TestCaseInfo const& testInfo ) = 0;
-
-        // Default empty implementation provided
-        virtual void fatalErrorEncountered( StringRef name );
-
-        virtual bool isMulti() const;
-    };
-    using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
-
-    struct IReporterFactory {
-        virtual ~IReporterFactory();
-        virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
-        virtual std::string getDescription() const = 0;
-    };
-    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
-
-    struct IReporterRegistry {
-        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
-        using Listeners = std::vector<IReporterFactoryPtr>;
-
-        virtual ~IReporterRegistry();
-        virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
-        virtual FactoryMap const& getFactories() const = 0;
-        virtual Listeners const& getListeners() const = 0;
-    };
-
-} // end namespace Catch
-
-// end catch_interfaces_reporter.h
-#include <algorithm>
-#include <cstring>
-#include <cfloat>
-#include <cstdio>
-#include <cassert>
-#include <memory>
-#include <ostream>
-
-namespace Catch {
-    void prepareExpandedExpression(AssertionResult& result);
-
-    // Returns double formatted as %.3f (format expected on output)
-    std::string getFormattedDuration( double duration );
-
-    template<typename DerivedT>
-    struct StreamingReporterBase : IStreamingReporter {
-
-        StreamingReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
-            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
-                throw std::domain_error( "Verbosity level not supported by this reporter" );
-        }
-
-        ReporterPreferences getPreferences() const override {
-            return m_reporterPrefs;
-        }
-
-        static std::set<Verbosity> getSupportedVerbosities() {
-            return { Verbosity::Normal };
-        }
-
-        ~StreamingReporterBase() override = default;
-
-        void noMatchingTestCases(std::string const&) override {}
-
-        void testRunStarting(TestRunInfo const& _testRunInfo) override {
-            currentTestRunInfo = _testRunInfo;
-        }
-        void testGroupStarting(GroupInfo const& _groupInfo) override {
-            currentGroupInfo = _groupInfo;
-        }
-
-        void testCaseStarting(TestCaseInfo const& _testInfo) override  {
-            currentTestCaseInfo = _testInfo;
-        }
-        void sectionStarting(SectionInfo const& _sectionInfo) override {
-            m_sectionStack.push_back(_sectionInfo);
-        }
-
-        void sectionEnded(SectionStats const& /* _sectionStats */) override {
-            m_sectionStack.pop_back();
-        }
-        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
-            currentTestCaseInfo.reset();
-        }
-        void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
-            currentGroupInfo.reset();
-        }
-        void testRunEnded(TestRunStats const& /* _testRunStats */) override {
-            currentTestCaseInfo.reset();
-            currentGroupInfo.reset();
-            currentTestRunInfo.reset();
-        }
-
-        void skipTest(TestCaseInfo const&) override {
-            // Don't do anything with this by default.
-            // It can optionally be overridden in the derived class.
-        }
-
-        IConfigPtr m_config;
-        std::ostream& stream;
-
-        LazyStat<TestRunInfo> currentTestRunInfo;
-        LazyStat<GroupInfo> currentGroupInfo;
-        LazyStat<TestCaseInfo> currentTestCaseInfo;
-
-        std::vector<SectionInfo> m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
-    };
-
-    template<typename DerivedT>
-    struct CumulativeReporterBase : IStreamingReporter {
-        template<typename T, typename ChildNodeT>
-        struct Node {
-            explicit Node( T const& _value ) : value( _value ) {}
-            virtual ~Node() {}
-
-            using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
-            T value;
-            ChildNodes children;
-        };
-        struct SectionNode {
-            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
-            virtual ~SectionNode() = default;
-
-            bool operator == (SectionNode const& other) const {
-                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
-            }
-            bool operator == (std::shared_ptr<SectionNode> const& other) const {
-                return operator==(*other);
-            }
-
-            SectionStats stats;
-            using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
-            using Assertions = std::vector<AssertionStats>;
-            ChildSections childSections;
-            Assertions assertions;
-            std::string stdOut;
-            std::string stdErr;
-        };
-
-        struct BySectionInfo {
-            BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
-            BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
-            bool operator() (std::shared_ptr<SectionNode> const& node) const {
-                return ((node->stats.sectionInfo.name == m_other.name) &&
-                        (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
-            }
-            void operator=(BySectionInfo const&) = delete;
-
-        private:
-            SectionInfo const& m_other;
-        };
-
-        using TestCaseNode = Node<TestCaseStats, SectionNode>;
-        using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
-        using TestRunNode = Node<TestRunStats, TestGroupNode>;
-
-        CumulativeReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
-            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
-                throw std::domain_error( "Verbosity level not supported by this reporter" );
-        }
-        ~CumulativeReporterBase() override = default;
-
-        ReporterPreferences getPreferences() const override {
-            return m_reporterPrefs;
-        }
-
-        static std::set<Verbosity> getSupportedVerbosities() {
-            return { Verbosity::Normal };
-        }
-
-        void testRunStarting( TestRunInfo const& ) override {}
-        void testGroupStarting( GroupInfo const& ) override {}
-
-        void testCaseStarting( TestCaseInfo const& ) override {}
-
-        void sectionStarting( SectionInfo const& sectionInfo ) override {
-            SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
-            std::shared_ptr<SectionNode> node;
-            if( m_sectionStack.empty() ) {
-                if( !m_rootSection )
-                    m_rootSection = std::make_shared<SectionNode>( incompleteStats );
-                node = m_rootSection;
-            }
-            else {
-                SectionNode& parentNode = *m_sectionStack.back();
-                auto it =
-                    std::find_if(   parentNode.childSections.begin(),
-                                    parentNode.childSections.end(),
-                                    BySectionInfo( sectionInfo ) );
-                if( it == parentNode.childSections.end() ) {
-                    node = std::make_shared<SectionNode>( incompleteStats );
-                    parentNode.childSections.push_back( node );
-                }
-                else
-                    node = *it;
-            }
-            m_sectionStack.push_back( node );
-            m_deepestSection = std::move(node);
-        }
-
-        void assertionStarting(AssertionInfo const&) override {}
-
-        bool assertionEnded(AssertionStats const& assertionStats) override {
-            assert(!m_sectionStack.empty());
-            // AssertionResult holds a pointer to a temporary DecomposedExpression,
-            // which getExpandedExpression() calls to build the expression string.
-            // Our section stack copy of the assertionResult will likely outlive the
-            // temporary, so it must be expanded or discarded now to avoid calling
-            // a destroyed object later.
-            prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
-            SectionNode& sectionNode = *m_sectionStack.back();
-            sectionNode.assertions.push_back(assertionStats);
-            return true;
-        }
-        void sectionEnded(SectionStats const& sectionStats) override {
-            assert(!m_sectionStack.empty());
-            SectionNode& node = *m_sectionStack.back();
-            node.stats = sectionStats;
-            m_sectionStack.pop_back();
-        }
-        void testCaseEnded(TestCaseStats const& testCaseStats) override {
-            auto node = std::make_shared<TestCaseNode>(testCaseStats);
-            assert(m_sectionStack.size() == 0);
-            node->children.push_back(m_rootSection);
-            m_testCases.push_back(node);
-            m_rootSection.reset();
-
-            assert(m_deepestSection);
-            m_deepestSection->stdOut = testCaseStats.stdOut;
-            m_deepestSection->stdErr = testCaseStats.stdErr;
-        }
-        void testGroupEnded(TestGroupStats const& testGroupStats) override {
-            auto node = std::make_shared<TestGroupNode>(testGroupStats);
-            node->children.swap(m_testCases);
-            m_testGroups.push_back(node);
-        }
-        void testRunEnded(TestRunStats const& testRunStats) override {
-            auto node = std::make_shared<TestRunNode>(testRunStats);
-            node->children.swap(m_testGroups);
-            m_testRuns.push_back(node);
-            testRunEndedCumulative();
-        }
-        virtual void testRunEndedCumulative() = 0;
-
-        void skipTest(TestCaseInfo const&) override {}
-
-        IConfigPtr m_config;
-        std::ostream& stream;
-        std::vector<AssertionStats> m_assertions;
-        std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
-        std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
-        std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
-
-        std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
-
-        std::shared_ptr<SectionNode> m_rootSection;
-        std::shared_ptr<SectionNode> m_deepestSection;
-        std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
-    };
-
-    template<char C>
-    char const* getLineOfChars() {
-        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
-        if( !*line ) {
-            std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
-            line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
-        }
-        return line;
-    }
-
-    struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
-        TestEventListenerBase( ReporterConfig const& _config );
-
-        void assertionStarting(AssertionInfo const&) override;
-        bool assertionEnded(AssertionStats const&) override;
-    };
-
-} // end namespace Catch
-
-// end catch_reporter_bases.hpp
-// start catch_console_colour.h
-
-namespace Catch {
-
-    struct Colour {
-        enum Code {
-            None = 0,
-
-            White,
-            Red,
-            Green,
-            Blue,
-            Cyan,
-            Yellow,
-            Grey,
-
-            Bright = 0x10,
-
-            BrightRed = Bright | Red,
-            BrightGreen = Bright | Green,
-            LightGrey = Bright | Grey,
-            BrightWhite = Bright | White,
-            BrightYellow = Bright | Yellow,
-
-            // By intention
-            FileName = LightGrey,
-            Warning = BrightYellow,
-            ResultError = BrightRed,
-            ResultSuccess = BrightGreen,
-            ResultExpectedFailure = Warning,
-
-            Error = BrightRed,
-            Success = Green,
-
-            OriginalExpression = Cyan,
-            ReconstructedExpression = BrightYellow,
-
-            SecondaryText = LightGrey,
-            Headers = White
-        };
-
-        // Use constructed object for RAII guard
-        Colour( Code _colourCode );
-        Colour( Colour&& other ) noexcept;
-        Colour& operator=( Colour&& other ) noexcept;
-        ~Colour();
-
-        // Use static method for one-shot changes
-        static void use( Code _colourCode );
-
-    private:
-        bool m_moved = false;
-    };
-
-    std::ostream& operator << ( std::ostream& os, Colour const& );
-
-} // end namespace Catch
-
-// end catch_console_colour.h
-// start catch_reporter_registrars.hpp
-
-
-namespace Catch {
-
-    template<typename T>
-    class ReporterRegistrar {
-
-        class ReporterFactory : public IReporterFactory {
-
-            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
-                return std::unique_ptr<T>( new T( config ) );
-            }
-
-            virtual std::string getDescription() const override {
-                return T::getDescription();
-            }
-        };
-
-    public:
-
-        explicit ReporterRegistrar( std::string const& name ) {
-            getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
-        }
-    };
-
-    template<typename T>
-    class ListenerRegistrar {
-
-        class ListenerFactory : public IReporterFactory {
-
-            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
-                return std::unique_ptr<T>( new T( config ) );
-            }
-            virtual std::string getDescription() const override {
-                return std::string();
-            }
-        };
-
-    public:
-
-        ListenerRegistrar() {
-            getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
-        }
-    };
-}
-
-#if !defined(CATCH_CONFIG_DISABLE)
-
-#define CATCH_REGISTER_REPORTER( name, reporterType ) \
-    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
-    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
-
-#define CATCH_REGISTER_LISTENER( listenerType ) \
-     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS   \
+ #ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
+ #define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
+ // start catch.hpp
+ 
+ 
+ #define CATCH_VERSION_MAJOR 2
+ #define CATCH_VERSION_MINOR 13
+ #define CATCH_VERSION_PATCH 10
+ 
+ #ifdef __clang__
+ #    pragma clang system_header
+ #elif defined __GNUC__
+ #    pragma GCC system_header
+ #endif
+ 
+ // start catch_suppress_warnings.h
+ 
+ #ifdef __clang__
+ #   ifdef __ICC // icpc defines the __clang__ macro
+ #       pragma warning(push)
+ #       pragma warning(disable: 161 1682)
+ #   else // __ICC
+ #       pragma clang diagnostic push
+ #       pragma clang diagnostic ignored "-Wpadded"
+ #       pragma clang diagnostic ignored "-Wswitch-enum"
+ #       pragma clang diagnostic ignored "-Wcovered-switch-default"
+ #    endif
+ #elif defined __GNUC__
+      // Because REQUIREs trigger GCC's -Wparentheses, and because still
+      // supported version of g++ have only buggy support for _Pragmas,
+      // Wparentheses have to be suppressed globally.
+ #    pragma GCC diagnostic ignored "-Wparentheses" // See #674 for details
+ 
+ #    pragma GCC diagnostic push
+ #    pragma GCC diagnostic ignored "-Wunused-variable"
+ #    pragma GCC diagnostic ignored "-Wpadded"
+ #endif
+ // end catch_suppress_warnings.h
+ #if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
+ #  define CATCH_IMPL
+ #  define CATCH_CONFIG_ALL_PARTS
+ #endif
+ 
+ // In the impl file, we want to have access to all parts of the headers
+ // Can also be used to sanely support PCHs
+ #if defined(CATCH_CONFIG_ALL_PARTS)
+ #  define CATCH_CONFIG_EXTERNAL_INTERFACES
+ #  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #    undef CATCH_CONFIG_DISABLE_MATCHERS
+ #  endif
+ #  if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
+ #    define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+ #  endif
+ #endif
+ 
+ #if !defined(CATCH_CONFIG_IMPL_ONLY)
+ // start catch_platform.h
+ 
+ // See e.g.:
+ // https://opensource.apple.com/source/CarbonHeaders/CarbonHeaders-18.1/TargetConditionals.h.auto.html
+ #ifdef __APPLE__
+ #  include <TargetConditionals.h>
+ #  if (defined(TARGET_OS_OSX) && TARGET_OS_OSX == 1) || \
+       (defined(TARGET_OS_MAC) && TARGET_OS_MAC == 1)
+ #    define CATCH_PLATFORM_MAC
+ #  elif (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE == 1)
+ #    define CATCH_PLATFORM_IPHONE
+ #  endif
+ 
+ #elif defined(linux) || defined(__linux) || defined(__linux__)
+ #  define CATCH_PLATFORM_LINUX
+ 
+ #elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
+ #  define CATCH_PLATFORM_WINDOWS
+ #endif
+ 
+ // end catch_platform.h
+ 
+ #ifdef CATCH_IMPL
+ #  ifndef CLARA_CONFIG_MAIN
+ #    define CLARA_CONFIG_MAIN_NOT_DEFINED
+ #    define CLARA_CONFIG_MAIN
+ #  endif
+ #endif
+ 
+ // start catch_user_interfaces.h
+ 
+ namespace Catch {
+     unsigned int rngSeed();
+ }
+ 
+ // end catch_user_interfaces.h
+ // start catch_tag_alias_autoregistrar.h
+ 
+ // start catch_common.h
+ 
+ // start catch_compiler_capabilities.h
+ 
+ // Detect a number of compiler features - by compiler
+ // The following features are defined:
+ //
+ // CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
+ // CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
+ // CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
+ // CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
+ // ****************
+ // Note to maintainers: if new toggles are added please document them
+ // in configuration.md, too
+ // ****************
+ 
+ // In general each macro has a _NO_<feature name> form
+ // (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
+ // Many features, at point of detection, define an _INTERNAL_ macro, so they
+ // can be combined, en-mass, with the _NO_ forms later.
+ 
+ #ifdef __cplusplus
+ 
+ #  if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
+ #    define CATCH_CPP14_OR_GREATER
+ #  endif
+ 
+ #  if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
+ #    define CATCH_CPP17_OR_GREATER
+ #  endif
+ 
+ #endif
+ 
+ // Only GCC compiler should be used in this block, so other compilers trying to
+ // mask themselves as GCC should be ignored.
+ #if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && !defined(__CUDACC__) && !defined(__LCC__)
+ #    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "GCC diagnostic push" )
+ #    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "GCC diagnostic pop" )
+ 
+ #    define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__)
+ 
+ #endif
+ 
+ #if defined(__clang__)
+ 
+ #    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" )
+ #    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "clang diagnostic pop" )
+ 
+ // As of this writing, IBM XL's implementation of __builtin_constant_p has a bug
+ // which results in calls to destructors being emitted for each temporary,
+ // without a matching initialization. In practice, this can result in something
+ // like `std::string::~string` being called on an uninitialized value.
+ //
+ // For example, this code will likely segfault under IBM XL:
+ // ```
+ // REQUIRE(std::string("12") + "34" == "1234")
+ // ```
+ //
+ // Therefore, `CATCH_INTERNAL_IGNORE_BUT_WARN` is not implemented.
+ #  if !defined(__ibmxl__) && !defined(__CUDACC__)
+ #    define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__) /* NOLINT(cppcoreguidelines-pro-type-vararg, hicpp-vararg) */
+ #  endif
+ 
+ #    define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+          _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
+          _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
+ 
+ #    define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
+          _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
+ 
+ #    define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+          _Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )
+ 
+ #    define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+          _Pragma( "clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"" )
+ 
+ #    define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+          _Pragma( "clang diagnostic ignored \"-Wunused-template\"" )
+ 
+ #endif // __clang__
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Assume that non-Windows platforms support posix signals by default
+ #if !defined(CATCH_PLATFORM_WINDOWS)
+     #define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // We know some environments not to support full POSIX signals
+ #if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
+     #define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
+ #endif
+ 
+ #ifdef __OS400__
+ #       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
+ #       define CATCH_CONFIG_COLOUR_NONE
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Android somehow still does not support std::to_string
+ #if defined(__ANDROID__)
+ #    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
+ #    define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Not all Windows environments support SEH properly
+ #if defined(__MINGW32__)
+ #    define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // PS4
+ #if defined(__ORBIS__)
+ #    define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Cygwin
+ #ifdef __CYGWIN__
+ 
+ // Required for some versions of Cygwin to declare gettimeofday
+ // see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
+ #   define _BSD_SOURCE
+ // some versions of cygwin (most) do not support std::to_string. Use the libstd check.
+ // https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html line 2812-2813
+ # if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
+            && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))
+ 
+ #    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
+ 
+ # endif
+ #endif // __CYGWIN__
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Visual C++
+ #if defined(_MSC_VER)
+ 
+ // Universal Windows platform does not support SEH
+ // Or console colours (or console at all...)
+ #  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
+ #    define CATCH_CONFIG_COLOUR_NONE
+ #  else
+ #    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
+ #  endif
+ 
+ #  if !defined(__clang__) // Handle Clang masquerading for msvc
+ 
+ // MSVC traditional preprocessor needs some workaround for __VA_ARGS__
+ // _MSVC_TRADITIONAL == 0 means new conformant preprocessor
+ // _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
+ #    if !defined(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
+ #      define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #    endif // MSVC_TRADITIONAL
+ 
+ // Only do this if we're not using clang on Windows, which uses `diagnostic push` & `diagnostic pop`
+ #    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION __pragma( warning(push) )
+ #    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  __pragma( warning(pop) )
+ #  endif // __clang__
+ 
+ #endif // _MSC_VER
+ 
+ #if defined(_REENTRANT) || defined(_MSC_VER)
+ // Enable async processing, as -pthread is specified or no additional linking is required
+ # define CATCH_INTERNAL_CONFIG_USE_ASYNC
+ #endif // _MSC_VER
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Check if we are compiled with -fno-exceptions or equivalent
+ #if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
+ #  define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // DJGPP
+ #ifdef __DJGPP__
+ #  define CATCH_INTERNAL_CONFIG_NO_WCHAR
+ #endif // __DJGPP__
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ // Embarcadero C++Build
+ #if defined(__BORLANDC__)
+     #define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ 
+ // Use of __COUNTER__ is suppressed during code analysis in
+ // CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
+ // handled by it.
+ // Otherwise all supported compilers support COUNTER macro,
+ // but user still might want to turn it off
+ #if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
+     #define CATCH_INTERNAL_CONFIG_COUNTER
+ #endif
+ 
+ ////////////////////////////////////////////////////////////////////////////////
+ 
+ // RTX is a special version of Windows that is real time.
+ // This means that it is detected as Windows, but does not provide
+ // the same set of capabilities as real Windows does.
+ #if defined(UNDER_RTSS) || defined(RTX64_BUILD)
+     #define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
+     #define CATCH_INTERNAL_CONFIG_NO_ASYNC
+     #define CATCH_CONFIG_COLOUR_NONE
+ #endif
+ 
+ #if !defined(_GLIBCXX_USE_C99_MATH_TR1)
+ #define CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER
+ #endif
+ 
+ // Various stdlib support checks that require __has_include
+ #if defined(__has_include)
+   // Check if string_view is available and usable
+   #if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
+   #    define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
+   #endif
+ 
+   // Check if optional is available and usable
+   #  if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
+   #    define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
+   #  endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
+ 
+   // Check if byte is available and usable
+   #  if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
+   #    include <cstddef>
+   #    if defined(__cpp_lib_byte) && (__cpp_lib_byte > 0)
+   #      define CATCH_INTERNAL_CONFIG_CPP17_BYTE
+   #    endif
+   #  endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
+ 
+   // Check if variant is available and usable
+   #  if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
+   #    if defined(__clang__) && (__clang_major__ < 8)
+          // work around clang bug with libstdc++ https://bugs.llvm.org/show_bug.cgi?id=31852
+          // fix should be in clang 8, workaround in libstdc++ 8.2
+   #      include <ciso646>
+   #      if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
+   #        define CATCH_CONFIG_NO_CPP17_VARIANT
+   #      else
+   #        define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
+   #      endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
+   #    else
+   #      define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
+   #    endif // defined(__clang__) && (__clang_major__ < 8)
+   #  endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
+ #endif // defined(__has_include)
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
+ #   define CATCH_CONFIG_COUNTER
+ #endif
+ #if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
+ #   define CATCH_CONFIG_WINDOWS_SEH
+ #endif
+ // This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
+ #if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) && !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
+ #   define CATCH_CONFIG_POSIX_SIGNALS
+ #endif
+ // This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
+ #if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
+ #   define CATCH_CONFIG_WCHAR
+ #endif
+ 
+ #if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
+ #    define CATCH_CONFIG_CPP11_TO_STRING
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_NO_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_CPP17_OPTIONAL)
+ #  define CATCH_CONFIG_CPP17_OPTIONAL
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
+ #  define CATCH_CONFIG_CPP17_STRING_VIEW
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && !defined(CATCH_CONFIG_NO_CPP17_VARIANT) && !defined(CATCH_CONFIG_CPP17_VARIANT)
+ #  define CATCH_CONFIG_CPP17_VARIANT
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
+ #  define CATCH_CONFIG_CPP17_BYTE
+ #endif
+ 
+ #if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
+ #  define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) && !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NEW_CAPTURE)
+ #  define CATCH_CONFIG_NEW_CAPTURE
+ #endif
+ 
+ #if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+ #  define CATCH_CONFIG_DISABLE_EXCEPTIONS
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_POLYFILL_ISNAN)
+ #  define CATCH_CONFIG_POLYFILL_ISNAN
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_USE_ASYNC)  && !defined(CATCH_INTERNAL_CONFIG_NO_ASYNC) && !defined(CATCH_CONFIG_NO_USE_ASYNC) && !defined(CATCH_CONFIG_USE_ASYNC)
+ #  define CATCH_CONFIG_USE_ASYNC
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_NO_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_ANDROID_LOGWRITE)
+ #  define CATCH_CONFIG_ANDROID_LOGWRITE
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_NO_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+ #  define CATCH_CONFIG_GLOBAL_NEXTAFTER
+ #endif
+ 
+ // Even if we do not think the compiler has that warning, we still have
+ // to provide a macro that can be used by the code.
+ #if !defined(CATCH_INTERNAL_START_WARNINGS_SUPPRESSION)
+ #   define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+ #endif
+ #if !defined(CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION)
+ #   define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ #endif
+ #if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
+ #   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
+ #endif
+ #if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
+ #   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
+ #endif
+ #if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
+ #   define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
+ #endif
+ #if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
+ #   define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
+ #endif
+ 
+ // The goal of this macro is to avoid evaluation of the arguments, but
+ // still have the compiler warn on problems inside...
+ #if !defined(CATCH_INTERNAL_IGNORE_BUT_WARN)
+ #   define CATCH_INTERNAL_IGNORE_BUT_WARN(...)
+ #endif
+ 
+ #if defined(__APPLE__) && defined(__apple_build_version__) && (__clang_major__ < 10)
+ #   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+ #elif defined(__clang__) && (__clang_major__ < 5)
+ #   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+ #endif
+ 
+ #if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS)
+ #   define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+ #endif
+ 
+ #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+ #define CATCH_TRY if ((true))
+ #define CATCH_CATCH_ALL if ((false))
+ #define CATCH_CATCH_ANON(type) if ((false))
+ #else
+ #define CATCH_TRY try
+ #define CATCH_CATCH_ALL catch (...)
+ #define CATCH_CATCH_ANON(type) catch (type)
+ #endif
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
+ #define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #endif
+ 
+ // end catch_compiler_capabilities.h
+ #define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
+ #define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
+ #ifdef CATCH_CONFIG_COUNTER
+ #  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
+ #else
+ #  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
+ #endif
+ 
+ #include <iosfwd>
+ #include <string>
+ #include <cstdint>
+ 
+ // We need a dummy global operator<< so we can bring it into Catch namespace later
+ struct Catch_global_namespace_dummy {};
+ std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);
+ 
+ namespace Catch {
+ 
+     struct CaseSensitive { enum Choice {
+         Yes,
+         No
+     }; };
+ 
+     class NonCopyable {
+         NonCopyable( NonCopyable const& )              = delete;
+         NonCopyable( NonCopyable && )                  = delete;
+         NonCopyable& operator = ( NonCopyable const& ) = delete;
+         NonCopyable& operator = ( NonCopyable && )     = delete;
+ 
+     protected:
+         NonCopyable();
+         virtual ~NonCopyable();
+     };
+ 
+     struct SourceLineInfo {
+ 
+         SourceLineInfo() = delete;
+         SourceLineInfo( char const* _file, std::size_t _line ) noexcept
+         :   file( _file ),
+             line( _line )
+         {}
+ 
+         SourceLineInfo( SourceLineInfo const& other )            = default;
+         SourceLineInfo& operator = ( SourceLineInfo const& )     = default;
+         SourceLineInfo( SourceLineInfo&& )              noexcept = default;
+         SourceLineInfo& operator = ( SourceLineInfo&& ) noexcept = default;
+ 
+         bool empty() const noexcept { return file[0] == '\0'; }
+         bool operator == ( SourceLineInfo const& other ) const noexcept;
+         bool operator < ( SourceLineInfo const& other ) const noexcept;
+ 
+         char const* file;
+         std::size_t line;
+     };
+ 
+     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );
+ 
+     // Bring in operator<< from global namespace into Catch namespace
+     // This is necessary because the overload of operator<< above makes
+     // lookup stop at namespace Catch
+     using ::operator<<;
+ 
+     // Use this in variadic streaming macros to allow
+     //    >> +StreamEndStop
+     // as well as
+     //    >> stuff +StreamEndStop
+     struct StreamEndStop {
+         std::string operator+() const;
+     };
+     template<typename T>
+     T const& operator + ( T const& value, StreamEndStop ) {
+         return value;
+     }
+ }
+ 
+ #define CATCH_INTERNAL_LINEINFO \
+     ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )
+ 
+ // end catch_common.h
+ namespace Catch {
+ 
+     struct RegistrarForTagAliases {
+         RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
+     };
+ 
+ } // end namespace Catch
+ 
+ #define CATCH_REGISTER_TAG_ALIAS( alias, spec ) \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+     namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); } \
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+ // end catch_tag_alias_autoregistrar.h
+ // start catch_test_registry.h
+ 
+ // start catch_interfaces_testcase.h
+ 
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     class TestSpec;
+ 
+     struct ITestInvoker {
+         virtual void invoke () const = 0;
+         virtual ~ITestInvoker();
+     };
+ 
+     class TestCase;
+     struct IConfig;
+ 
+     struct ITestCaseRegistry {
+         virtual ~ITestCaseRegistry();
+         virtual std::vector<TestCase> const& getAllTests() const = 0;
+         virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
+     };
+ 
+     bool isThrowSafe( TestCase const& testCase, IConfig const& config );
+     bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
+     std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
+     std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
+ 
+ }
+ 
+ // end catch_interfaces_testcase.h
+ // start catch_stringref.h
+ 
+ #include <cstddef>
+ #include <string>
+ #include <iosfwd>
+ #include <cassert>
+ 
+ namespace Catch {
+ 
+     /// A non-owning string class (similar to the forthcoming std::string_view)
+     /// Note that, because a StringRef may be a substring of another string,
+     /// it may not be null terminated.
+     class StringRef {
+     public:
+         using size_type = std::size_t;
+         using const_iterator = const char*;
+ 
+     private:
+         static constexpr char const* const s_empty = "";
+ 
+         char const* m_start = s_empty;
+         size_type m_size = 0;
+ 
+     public: // construction
+         constexpr StringRef() noexcept = default;
+ 
+         StringRef( char const* rawChars ) noexcept;
+ 
+         constexpr StringRef( char const* rawChars, size_type size ) noexcept
+         :   m_start( rawChars ),
+             m_size( size )
+         {}
+ 
+         StringRef( std::string const& stdString ) noexcept
+         :   m_start( stdString.c_str() ),
+             m_size( stdString.size() )
+         {}
+ 
+         explicit operator std::string() const {
+             return std::string(m_start, m_size);
+         }
+ 
+     public: // operators
+         auto operator == ( StringRef const& other ) const noexcept -> bool;
+         auto operator != (StringRef const& other) const noexcept -> bool {
+             return !(*this == other);
+         }
+ 
+         auto operator[] ( size_type index ) const noexcept -> char {
+             assert(index < m_size);
+             return m_start[index];
+         }
+ 
+     public: // named queries
+         constexpr auto empty() const noexcept -> bool {
+             return m_size == 0;
+         }
+         constexpr auto size() const noexcept -> size_type {
+             return m_size;
+         }
+ 
+         // Returns the current start pointer. If the StringRef is not
+         // null-terminated, throws std::domain_exception
+         auto c_str() const -> char const*;
+ 
+     public: // substrings and searches
+         // Returns a substring of [start, start + length).
+         // If start + length > size(), then the substring is [start, size()).
+         // If start > size(), then the substring is empty.
+         auto substr( size_type start, size_type length ) const noexcept -> StringRef;
+ 
+         // Returns the current start pointer. May not be null-terminated.
+         auto data() const noexcept -> char const*;
+ 
+         constexpr auto isNullTerminated() const noexcept -> bool {
+             return m_start[m_size] == '\0';
+         }
+ 
+     public: // iterators
+         constexpr const_iterator begin() const { return m_start; }
+         constexpr const_iterator end() const { return m_start + m_size; }
+     };
+ 
+     auto operator += ( std::string& lhs, StringRef const& sr ) -> std::string&;
+     auto operator << ( std::ostream& os, StringRef const& sr ) -> std::ostream&;
+ 
+     constexpr auto operator "" _sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
+         return StringRef( rawChars, size );
+     }
+ } // namespace Catch
+ 
+ constexpr auto operator "" _catch_sr( char const* rawChars, std::size_t size ) noexcept -> Catch::StringRef {
+     return Catch::StringRef( rawChars, size );
+ }
+ 
+ // end catch_stringref.h
+ // start catch_preprocessor.hpp
+ 
+ 
+ #define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
+ #define CATCH_RECURSION_LEVEL1(...) CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
+ #define CATCH_RECURSION_LEVEL2(...) CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
+ #define CATCH_RECURSION_LEVEL3(...) CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
+ #define CATCH_RECURSION_LEVEL4(...) CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
+ #define CATCH_RECURSION_LEVEL5(...) CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))
+ 
+ #ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
+ // MSVC needs more evaluations
+ #define CATCH_RECURSION_LEVEL6(...) CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
+ #define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
+ #else
+ #define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL5(__VA_ARGS__)
+ #endif
+ 
+ #define CATCH_REC_END(...)
+ #define CATCH_REC_OUT
+ 
+ #define CATCH_EMPTY()
+ #define CATCH_DEFER(id) id CATCH_EMPTY()
+ 
+ #define CATCH_REC_GET_END2() 0, CATCH_REC_END
+ #define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
+ #define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
+ #define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
+ #define CATCH_REC_NEXT1(test, next) CATCH_DEFER ( CATCH_REC_NEXT0 ) ( test, next, 0)
+ #define CATCH_REC_NEXT(test, next)  CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)
+ 
+ #define CATCH_REC_LIST0(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
+ #define CATCH_REC_LIST1(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0) ) ( f, peek, __VA_ARGS__ )
+ #define CATCH_REC_LIST2(f, x, peek, ...)   f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
+ 
+ #define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+ #define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+ #define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)   f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+ 
+ // Applies the function macro `f` to each of the remaining parameters, inserts commas between the results,
+ // and passes userdata as the first parameter to each invocation,
+ // e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a), f(x, b), f(x, c)
+ #define CATCH_REC_LIST_UD(f, userdata, ...) CATCH_RECURSE(CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
+ 
+ #define CATCH_REC_LIST(f, ...) CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
+ 
+ #define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
+ #define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO## __VA_ARGS__
+ #define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
+ #define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
+ #define INTERNAL_CATCH_STRINGIZE(...) INTERNAL_CATCH_STRINGIZE2(__VA_ARGS__)
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define INTERNAL_CATCH_STRINGIZE2(...) #__VA_ARGS__
+ #define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param))
+ #else
+ // MSVC is adding extra space and needs another indirection to expand INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
+ #define INTERNAL_CATCH_STRINGIZE2(...) INTERNAL_CATCH_STRINGIZE3(__VA_ARGS__)
+ #define INTERNAL_CATCH_STRINGIZE3(...) #__VA_ARGS__
+ #define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) (INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param)) + 1)
+ #endif
+ 
+ #define INTERNAL_CATCH_MAKE_NAMESPACE2(...) ns_##__VA_ARGS__
+ #define INTERNAL_CATCH_MAKE_NAMESPACE(name) INTERNAL_CATCH_MAKE_NAMESPACE2(name)
+ 
+ #define INTERNAL_CATCH_REMOVE_PARENS(...) INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF __VA_ARGS__)
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>())
+ #define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
+ #else
+ #define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) INTERNAL_CATCH_EXPAND_VARGS(decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>()))
+ #define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
+ #endif
+ 
+ #define INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(...)\
+     CATCH_REC_LIST(INTERNAL_CATCH_MAKE_TYPE_LIST,__VA_ARGS__)
+ 
+ #define INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_0) INTERNAL_CATCH_REMOVE_PARENS(_0)
+ #define INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_0, _1) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_1)
+ #define INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_0, _1, _2) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_1, _2)
+ #define INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_0, _1, _2, _3) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_1, _2, _3)
+ #define INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_0, _1, _2, _3, _4) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_1, _2, _3, _4)
+ #define INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_0, _1, _2, _3, _4, _5) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_1, _2, _3, _4, _5)
+ #define INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_0, _1, _2, _3, _4, _5, _6) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_1, _2, _3, _4, _5, _6)
+ #define INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_0, _1, _2, _3, _4, _5, _6, _7) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_1, _2, _3, _4, _5, _6, _7)
+ #define INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_1, _2, _3, _4, _5, _6, _7, _8)
+ #define INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9)
+ #define INTERNAL_CATCH_REMOVE_PARENS_11_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10)
+ 
+ #define INTERNAL_CATCH_VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
+ 
+ #define INTERNAL_CATCH_TYPE_GEN\
+     template<typename...> struct TypeList {};\
+     template<typename...Ts>\
+     constexpr auto get_wrapper() noexcept -> TypeList<Ts...> { return {}; }\
+     template<template<typename...> class...> struct TemplateTypeList{};\
+     template<template<typename...> class...Cs>\
+     constexpr auto get_wrapper() noexcept -> TemplateTypeList<Cs...> { return {}; }\
+     template<typename...>\
+     struct append;\
+     template<typename...>\
+     struct rewrap;\
+     template<template<typename...> class, typename...>\
+     struct create;\
+     template<template<typename...> class, typename>\
+     struct convert;\
+     \
+     template<typename T> \
+     struct append<T> { using type = T; };\
+     template< template<typename...> class L1, typename...E1, template<typename...> class L2, typename...E2, typename...Rest>\
+     struct append<L1<E1...>, L2<E2...>, Rest...> { using type = typename append<L1<E1...,E2...>, Rest...>::type; };\
+     template< template<typename...> class L1, typename...E1, typename...Rest>\
+     struct append<L1<E1...>, TypeList<mpl_::na>, Rest...> { using type = L1<E1...>; };\
+     \
+     template< template<typename...> class Container, template<typename...> class List, typename...elems>\
+     struct rewrap<TemplateTypeList<Container>, List<elems...>> { using type = TypeList<Container<elems...>>; };\
+     template< template<typename...> class Container, template<typename...> class List, class...Elems, typename...Elements>\
+     struct rewrap<TemplateTypeList<Container>, List<Elems...>, Elements...> { using type = typename append<TypeList<Container<Elems...>>, typename rewrap<TemplateTypeList<Container>, Elements...>::type>::type; };\
+     \
+     template<template <typename...> class Final, template< typename...> class...Containers, typename...Types>\
+     struct create<Final, TemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<TemplateTypeList<Containers>, Types...>::type...>::type; };\
+     template<template <typename...> class Final, template <typename...> class List, typename...Ts>\
+     struct convert<Final, List<Ts...>> { using type = typename append<Final<>,TypeList<Ts>...>::type; };
+ 
+ #define INTERNAL_CATCH_NTTP_1(signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)> struct Nttp{};\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     constexpr auto get_wrapper() noexcept -> Nttp<__VA_ARGS__> { return {}; } \
+     template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...> struct NttpTemplateTypeList{};\
+     template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Cs>\
+     constexpr auto get_wrapper() noexcept -> NttpTemplateTypeList<Cs...> { return {}; } \
+     \
+     template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>> { using type = TypeList<Container<__VA_ARGS__>>; };\
+     template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature), typename...Elements>\
+     struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>, Elements...> { using type = typename append<TypeList<Container<__VA_ARGS__>>, typename rewrap<NttpTemplateTypeList<Container>, Elements...>::type>::type; };\
+     template<template <typename...> class Final, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Containers, typename...Types>\
+     struct create<Final, NttpTemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<NttpTemplateTypeList<Containers>, Types...>::type...>::type; };
+ 
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST0(TestName)
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST1(TestName, signature)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     static void TestName()
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_X(TestName, signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     static void TestName()
+ 
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST0(TestName)
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST1(TestName, signature)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     static void TestName()
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_X(TestName, signature,...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     static void TestName()
+ 
+ #define INTERNAL_CATCH_NTTP_REGISTER0(TestFunc, signature)\
+     template<typename Type>\
+     void reg_test(TypeList<Type>, Catch::NameAndTags nameAndTags)\
+     {\
+         Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<Type>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
+     }
+ 
+ #define INTERNAL_CATCH_NTTP_REGISTER(TestFunc, signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     void reg_test(Nttp<__VA_ARGS__>, Catch::NameAndTags nameAndTags)\
+     {\
+         Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<__VA_ARGS__>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
+     }
+ 
+ #define INTERNAL_CATCH_NTTP_REGISTER_METHOD0(TestName, signature, ...)\
+     template<typename Type>\
+     void reg_test(TypeList<Type>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
+     {\
+         Catch::AutoReg( Catch::makeTestInvoker(&TestName<Type>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
+     }
+ 
+ #define INTERNAL_CATCH_NTTP_REGISTER_METHOD(TestName, signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+     void reg_test(Nttp<__VA_ARGS__>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
+     {\
+         Catch::AutoReg( Catch::makeTestInvoker(&TestName<__VA_ARGS__>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
+     }
+ 
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0(TestName, ClassName)
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1(TestName, ClassName, signature)\
+     template<typename TestType> \
+     struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<TestType> { \
+         void test();\
+     }
+ 
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X(TestName, ClassName, signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
+     struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<__VA_ARGS__> { \
+         void test();\
+     }
+ 
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0(TestName)
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1(TestName, signature)\
+     template<typename TestType> \
+     void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<TestType>::test()
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X(TestName, signature, ...)\
+     template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
+     void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<__VA_ARGS__>::test()
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define INTERNAL_CATCH_NTTP_0
+ #define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__),INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_0)
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)(TestName, __VA_ARGS__)
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)(TestName, ClassName, __VA_ARGS__)
+ #define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD0, INTERNAL_CATCH_NTTP_REGISTER_METHOD0)(TestName, __VA_ARGS__)
+ #define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__)
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__)
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestName, __VA_ARGS__)
+ #define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__)
+ #else
+ #define INTERNAL_CATCH_NTTP_0(signature)
+ #define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1,INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_0)( __VA_ARGS__))
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)(TestName, __VA_ARGS__))
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)(TestName, ClassName, __VA_ARGS__))
+ #define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD0, INTERNAL_CATCH_NTTP_REGISTER_METHOD0)(TestName, __VA_ARGS__))
+ #define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__))
+ #define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__))
+ #define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestName, __VA_ARGS__))
+ #define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__))
+ #endif
+ 
+ // end catch_preprocessor.hpp
+ // start catch_meta.hpp
+ 
+ 
+ #include <type_traits>
+ 
+ namespace Catch {
+     template<typename T>
+     struct always_false : std::false_type {};
+ 
+     template <typename> struct true_given : std::true_type {};
+     struct is_callable_tester {
+         template <typename Fun, typename... Args>
+         true_given<decltype(std::declval<Fun>()(std::declval<Args>()...))> static test(int);
+         template <typename...>
+         std::false_type static test(...);
+     };
+ 
+     template <typename T>
+     struct is_callable;
+ 
+     template <typename Fun, typename... Args>
+     struct is_callable<Fun(Args...)> : decltype(is_callable_tester::test<Fun, Args...>(0)) {};
+ 
+ #if defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703
+     // std::result_of is deprecated in C++17 and removed in C++20. Hence, it is
+     // replaced with std::invoke_result here.
+     template <typename Func, typename... U>
+     using FunctionReturnType = std::remove_reference_t<std::remove_cv_t<std::invoke_result_t<Func, U...>>>;
+ #else
+     // Keep ::type here because we still support C++11
+     template <typename Func, typename... U>
+     using FunctionReturnType = typename std::remove_reference<typename std::remove_cv<typename std::result_of<Func(U...)>::type>::type>::type;
+ #endif
+ 
+ } // namespace Catch
+ 
+ namespace mpl_{
+     struct na;
+ }
+ 
+ // end catch_meta.hpp
+ namespace Catch {
+ 
+ template<typename C>
+ class TestInvokerAsMethod : public ITestInvoker {
+     void (C::*m_testAsMethod)();
+ public:
+     TestInvokerAsMethod( void (C::*testAsMethod)() ) noexcept : m_testAsMethod( testAsMethod ) {}
+ 
+     void invoke() const override {
+         C obj;
+         (obj.*m_testAsMethod)();
+     }
+ };
+ 
+ auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker*;
+ 
+ template<typename C>
+ auto makeTestInvoker( void (C::*testAsMethod)() ) noexcept -> ITestInvoker* {
+     return new(std::nothrow) TestInvokerAsMethod<C>( testAsMethod );
+ }
+ 
+ struct NameAndTags {
+     NameAndTags( StringRef const& name_ = StringRef(), StringRef const& tags_ = StringRef() ) noexcept;
+     StringRef name;
+     StringRef tags;
+ };
+ 
+ struct AutoReg : NonCopyable {
+     AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept;
+     ~AutoReg();
+ };
+ 
+ } // end namespace Catch
+ 
+ #if defined(CATCH_CONFIG_DISABLE)
+     #define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
+         static void TestName()
+     #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
+         namespace{                        \
+             struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
+                 void test();              \
+             };                            \
+         }                                 \
+         void TestName::test()
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( TestName, TestFunc, Name, Tags, Signature, ... )  \
+         INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... )    \
+         namespace{                                                                                  \
+             namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                      \
+             INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+         }                                                                                           \
+         }                                                                                           \
+         INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+ 
+     #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
+             INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename TestType, __VA_ARGS__ )
+     #else
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
+             INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
+     #endif
+ 
+     #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
+             INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__ )
+     #else
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
+             INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__ ) )
+     #endif
+ 
+     #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
+             INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
+     #else
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
+             INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
+     #endif
+ 
+     #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
+             INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
+     #else
+         #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
+             INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
+     #endif
+ #endif
+ 
+     ///////////////////////////////////////////////////////////////////////////////
+     #define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
+         static void TestName(); \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         static void TestName()
+     #define INTERNAL_CATCH_TESTCASE( ... ) \
+         INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ), __VA_ARGS__ )
+ 
+     ///////////////////////////////////////////////////////////////////////////////
+     #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+     ///////////////////////////////////////////////////////////////////////////////
+     #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         namespace{ \
+             struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
+                 void test(); \
+             }; \
+             Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
+         } \
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         void TestName::test()
+     #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
+         INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ), ClassName, __VA_ARGS__ )
+ 
+     ///////////////////////////////////////////////////////////////////////////////
+     #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+     ///////////////////////////////////////////////////////////////////////////////
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags, Signature, ... )\
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         INTERNAL_CATCH_DECLARE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
+             INTERNAL_CATCH_TYPE_GEN\
+             INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+             INTERNAL_CATCH_NTTP_REG_GEN(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+             template<typename...Types> \
+             struct TestName{\
+                 TestName(){\
+                     int index = 0;                                    \
+                     constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};\
+                     using expander = int[];\
+                     (void)expander{(reg_test(Types{}, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++)... };/* NOLINT */ \
+                 }\
+             };\
+             static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+             TestName<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
+             return 0;\
+         }();\
+         }\
+         }\
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
+         INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename TestType, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
+ #endif
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
+         INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__ ) )
+ #endif
+ 
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(TestName, TestFuncName, Name, Tags, Signature, TmplTypes, TypesList) \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                      \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                      \
+         CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS              \
+         template<typename TestType> static void TestFuncName();       \
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                     \
+             INTERNAL_CATCH_TYPE_GEN                                                  \
+             INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))         \
+             template<typename... Types>                               \
+             struct TestName {                                         \
+                 void reg_tests() {                                          \
+                     int index = 0;                                    \
+                     using expander = int[];                           \
+                     constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
+                     constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
+                     constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
+                     (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFuncName<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + "<" + std::string(types_list[index % num_types]) + ">", Tags } ), index++)... };/* NOLINT */\
+                 }                                                     \
+             };                                                        \
+             static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
+                 using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
+                 TestInit t;                                           \
+                 t.reg_tests();                                        \
+                 return 0;                                             \
+             }();                                                      \
+         }                                                             \
+         }                                                             \
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
+         template<typename TestType>                                   \
+         static void TestFuncName()
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
+         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename T,__VA_ARGS__)
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, typename T, __VA_ARGS__ ) )
+ #endif
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
+         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__)
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, Signature, __VA_ARGS__ ) )
+ #endif
+ 
+     #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2(TestName, TestFunc, Name, Tags, TmplList)\
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         template<typename TestType> static void TestFunc();       \
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
+         INTERNAL_CATCH_TYPE_GEN\
+         template<typename... Types>                               \
+         struct TestName {                                         \
+             void reg_tests() {                                          \
+                 int index = 0;                                    \
+                 using expander = int[];                           \
+                 (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFunc<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " + std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + " - " + std::to_string(index), Tags } ), index++)... };/* NOLINT */\
+             }                                                     \
+         };\
+         static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
+                 using TestInit = typename convert<TestName, TmplList>::type; \
+                 TestInit t;                                           \
+                 t.reg_tests();                                        \
+                 return 0;                                             \
+             }();                                                      \
+         }}\
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
+         template<typename TestType>                                   \
+         static void TestFunc()
+ 
+     #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(Name, Tags, TmplList) \
+         INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), Name, Tags, TmplList )
+ 
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... ) \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
+             INTERNAL_CATCH_TYPE_GEN\
+             INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+             INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+             INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+             template<typename...Types> \
+             struct TestNameClass{\
+                 TestNameClass(){\
+                     int index = 0;                                    \
+                     constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};\
+                     using expander = int[];\
+                     (void)expander{(reg_test(Types{}, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++)... };/* NOLINT */ \
+                 }\
+             };\
+             static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                 TestNameClass<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
+                 return 0;\
+         }();\
+         }\
+         }\
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
+         INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
+ #endif
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
+         INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_C_L_A_S_S_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
+ #endif
+ 
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(TestNameClass, TestName, ClassName, Name, Tags, Signature, TmplTypes, TypesList)\
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         template<typename TestType> \
+             struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
+                 void test();\
+             };\
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestNameClass) {\
+             INTERNAL_CATCH_TYPE_GEN                  \
+             INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+             template<typename...Types>\
+             struct TestNameClass{\
+                 void reg_tests(){\
+                     int index = 0;\
+                     using expander = int[];\
+                     constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
+                     constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
+                     constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
+                     (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + "<" + std::string(types_list[index % num_types]) + ">", Tags } ), index++)... };/* NOLINT */ \
+                 }\
+             };\
+             static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                 using TestInit = typename create<TestNameClass, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type;\
+                 TestInit t;\
+                 t.reg_tests();\
+                 return 0;\
+             }(); \
+         }\
+         }\
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         template<typename TestType> \
+         void TestName<TestType>::test()
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
+         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), ClassName, Name, Tags, typename T, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), ClassName, Name, Tags, typename T,__VA_ARGS__ ) )
+ #endif
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
+         INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), ClassName, Name, Tags, Signature, __VA_ARGS__ )
+ #else
+     #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
+         INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), ClassName, Name, Tags, Signature,__VA_ARGS__ ) )
+ #endif
+ 
+     #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, TmplList) \
+         CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         template<typename TestType> \
+         struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
+             void test();\
+         };\
+         namespace {\
+         namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
+             INTERNAL_CATCH_TYPE_GEN\
+             template<typename...Types>\
+             struct TestNameClass{\
+                 void reg_tests(){\
+                     int index = 0;\
+                     using expander = int[];\
+                     (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ Name " - " + std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + " - " + std::to_string(index), Tags } ), index++)... };/* NOLINT */ \
+                 }\
+             };\
+             static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                 using TestInit = typename convert<TestNameClass, TmplList>::type;\
+                 TestInit t;\
+                 t.reg_tests();\
+                 return 0;\
+             }(); \
+         }}\
+         CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         template<typename TestType> \
+         void TestName<TestType>::test()
+ 
+ #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(ClassName, Name, Tags, TmplList) \
+         INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_ ), INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_M_P_L_A_T_E_T_E_S_T_F_U_N_C_ ), ClassName, Name, Tags, TmplList )
+ 
+ // end catch_test_registry.h
+ // start catch_capture.hpp
+ 
+ // start catch_assertionhandler.h
+ 
+ // start catch_assertioninfo.h
+ 
+ // start catch_result_type.h
+ 
+ namespace Catch {
+ 
+     // ResultWas::OfType enum
+     struct ResultWas { enum OfType {
+         Unknown = -1,
+         Ok = 0,
+         Info = 1,
+         Warning = 2,
+ 
+         FailureBit = 0x10,
+ 
+         ExpressionFailed = FailureBit | 1,
+         ExplicitFailure = FailureBit | 2,
+ 
+         Exception = 0x100 | FailureBit,
+ 
+         ThrewException = Exception | 1,
+         DidntThrowException = Exception | 2,
+ 
+         FatalErrorCondition = 0x200 | FailureBit
+ 
+     }; };
+ 
+     bool isOk( ResultWas::OfType resultType );
+     bool isJustInfo( int flags );
+ 
+     // ResultDisposition::Flags enum
+     struct ResultDisposition { enum Flags {
+         Normal = 0x01,
+ 
+         ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
+         FalseTest = 0x04,           // Prefix expression with !
+         SuppressFail = 0x08         // Failures are reported but do not fail the test
+     }; };
+ 
+     ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs );
+ 
+     bool shouldContinueOnFailure( int flags );
+     inline bool isFalseTest( int flags ) { return ( flags & ResultDisposition::FalseTest ) != 0; }
+     bool shouldSuppressFailure( int flags );
+ 
+ } // end namespace Catch
+ 
+ // end catch_result_type.h
+ namespace Catch {
+ 
+     struct AssertionInfo
+     {
+         StringRef macroName;
+         SourceLineInfo lineInfo;
+         StringRef capturedExpression;
+         ResultDisposition::Flags resultDisposition;
+ 
+         // We want to delete this constructor but a compiler bug in 4.8 means
+         // the struct is then treated as non-aggregate
+         //AssertionInfo() = delete;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_assertioninfo.h
+ // start catch_decomposer.h
+ 
+ // start catch_tostring.h
+ 
+ #include <vector>
+ #include <cstddef>
+ #include <type_traits>
+ #include <string>
+ // start catch_stream.h
+ 
+ #include <iosfwd>
+ #include <cstddef>
+ #include <ostream>
+ 
+ namespace Catch {
+ 
+     std::ostream& cout();
+     std::ostream& cerr();
+     std::ostream& clog();
+ 
+     class StringRef;
+ 
+     struct IStream {
+         virtual ~IStream();
+         virtual std::ostream& stream() const = 0;
+     };
+ 
+     auto makeStream( StringRef const &filename ) -> IStream const*;
+ 
+     class ReusableStringStream : NonCopyable {
+         std::size_t m_index;
+         std::ostream* m_oss;
+     public:
+         ReusableStringStream();
+         ~ReusableStringStream();
+ 
+         auto str() const -> std::string;
+ 
+         template<typename T>
+         auto operator << ( T const& value ) -> ReusableStringStream& {
+             *m_oss << value;
+             return *this;
+         }
+         auto get() -> std::ostream& { return *m_oss; }
+     };
+ }
+ 
+ // end catch_stream.h
+ // start catch_interfaces_enum_values_registry.h
+ 
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     namespace Detail {
+         struct EnumInfo {
+             StringRef m_name;
+             std::vector<std::pair<int, StringRef>> m_values;
+ 
+             ~EnumInfo();
+ 
+             StringRef lookup( int value ) const;
+         };
+     } // namespace Detail
+ 
+     struct IMutableEnumValuesRegistry {
+         virtual ~IMutableEnumValuesRegistry();
+ 
+         virtual Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values ) = 0;
+ 
+         template<typename E>
+         Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::initializer_list<E> values ) {
+             static_assert(sizeof(int) >= sizeof(E), "Cannot serialize enum to int");
+             std::vector<int> intValues;
+             intValues.reserve( values.size() );
+             for( auto enumValue : values )
+                 intValues.push_back( static_cast<int>( enumValue ) );
+             return registerEnum( enumName, allEnums, intValues );
+         }
+     };
+ 
+ } // Catch
+ 
+ // end catch_interfaces_enum_values_registry.h
+ 
+ #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+ #include <string_view>
+ #endif
+ 
+ #ifdef __OBJC__
+ // start catch_objc_arc.hpp
+ 
+ #import <Foundation/Foundation.h>
+ 
+ #ifdef __has_feature
+ #define CATCH_ARC_ENABLED __has_feature(objc_arc)
+ #else
+ #define CATCH_ARC_ENABLED 0
+ #endif
+ 
+ void arcSafeRelease( NSObject* obj );
+ id performOptionalSelector( id obj, SEL sel );
+ 
+ #if !CATCH_ARC_ENABLED
+ inline void arcSafeRelease( NSObject* obj ) {
+     [obj release];
+ }
+ inline id performOptionalSelector( id obj, SEL sel ) {
+     if( [obj respondsToSelector: sel] )
+         return [obj performSelector: sel];
+     return nil;
+ }
+ #define CATCH_UNSAFE_UNRETAINED
+ #define CATCH_ARC_STRONG
+ #else
+ inline void arcSafeRelease( NSObject* ){}
+ inline id performOptionalSelector( id obj, SEL sel ) {
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+ #endif
+     if( [obj respondsToSelector: sel] )
+         return [obj performSelector: sel];
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+     return nil;
+ }
+ #define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
+ #define CATCH_ARC_STRONG __strong
+ #endif
+ 
+ // end catch_objc_arc.hpp
+ #endif
+ 
+ #ifdef _MSC_VER
+ #pragma warning(push)
+ #pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
+ #endif
+ 
+ namespace Catch {
+     namespace Detail {
+ 
+         extern const std::string unprintableString;
+ 
+         std::string rawMemoryToString( const void *object, std::size_t size );
+ 
+         template<typename T>
+         std::string rawMemoryToString( const T& object ) {
+           return rawMemoryToString( &object, sizeof(object) );
+         }
+ 
+         template<typename T>
+         class IsStreamInsertable {
+             template<typename Stream, typename U>
+             static auto test(int)
+                 -> decltype(std::declval<Stream&>() << std::declval<U>(), std::true_type());
+ 
+             template<typename, typename>
+             static auto test(...)->std::false_type;
+ 
+         public:
+             static const bool value = decltype(test<std::ostream, const T&>(0))::value;
+         };
+ 
+         template<typename E>
+         std::string convertUnknownEnumToString( E e );
+ 
+         template<typename T>
+         typename std::enable_if<
+             !std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
+         std::string>::type convertUnstreamable( T const& ) {
+             return Detail::unprintableString;
+         }
+         template<typename T>
+         typename std::enable_if<
+             !std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
+          std::string>::type convertUnstreamable(T const& ex) {
+             return ex.what();
+         }
+ 
+         template<typename T>
+         typename std::enable_if<
+             std::is_enum<T>::value
+         , std::string>::type convertUnstreamable( T const& value ) {
+             return convertUnknownEnumToString( value );
+         }
+ 
+ #if defined(_MANAGED)
+         //! Convert a CLR string to a utf8 std::string
+         template<typename T>
+         std::string clrReferenceToString( T^ ref ) {
+             if (ref == nullptr)
+                 return std::string("null");
+             auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
+             cli::pin_ptr<System::Byte> p = &bytes[0];
+             return std::string(reinterpret_cast<char const *>(p), bytes->Length);
+         }
+ #endif
+ 
+     } // namespace Detail
+ 
+     // If we decide for C++14, change these to enable_if_ts
+     template <typename T, typename = void>
+     struct StringMaker {
+         template <typename Fake = T>
+         static
+         typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
+             convert(const Fake& value) {
+                 ReusableStringStream rss;
+                 // NB: call using the function-like syntax to avoid ambiguity with
+                 // user-defined templated operator<< under clang.
+                 rss.operator<<(value);
+                 return rss.str();
+         }
+ 
+         template <typename Fake = T>
+         static
+         typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
+             convert( const Fake& value ) {
+ #if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
+             return Detail::convertUnstreamable(value);
+ #else
+             return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
+ #endif
+         }
+     };
+ 
+     namespace Detail {
+ 
+         // This function dispatches all stringification requests inside of Catch.
+         // Should be preferably called fully qualified, like ::Catch::Detail::stringify
+         template <typename T>
+         std::string stringify(const T& e) {
+             return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
+         }
+ 
+         template<typename E>
+         std::string convertUnknownEnumToString( E e ) {
+             return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<E>::type>(e));
+         }
+ 
+ #if defined(_MANAGED)
+         template <typename T>
+         std::string stringify( T^ e ) {
+             return ::Catch::StringMaker<T^>::convert(e);
+         }
+ #endif
+ 
+     } // namespace Detail
+ 
+     // Some predefined specializations
+ 
+     template<>
+     struct StringMaker<std::string> {
+         static std::string convert(const std::string& str);
+     };
+ 
+ #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+     template<>
+     struct StringMaker<std::string_view> {
+         static std::string convert(std::string_view str);
+     };
+ #endif
+ 
+     template<>
+     struct StringMaker<char const *> {
+         static std::string convert(char const * str);
+     };
+     template<>
+     struct StringMaker<char *> {
+         static std::string convert(char * str);
+     };
+ 
+ #ifdef CATCH_CONFIG_WCHAR
+     template<>
+     struct StringMaker<std::wstring> {
+         static std::string convert(const std::wstring& wstr);
+     };
+ 
+ # ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+     template<>
+     struct StringMaker<std::wstring_view> {
+         static std::string convert(std::wstring_view str);
+     };
+ # endif
+ 
+     template<>
+     struct StringMaker<wchar_t const *> {
+         static std::string convert(wchar_t const * str);
+     };
+     template<>
+     struct StringMaker<wchar_t *> {
+         static std::string convert(wchar_t * str);
+     };
+ #endif
+ 
+     // TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
+     //      while keeping string semantics?
+     template<int SZ>
+     struct StringMaker<char[SZ]> {
+         static std::string convert(char const* str) {
+             return ::Catch::Detail::stringify(std::string{ str });
+         }
+     };
+     template<int SZ>
+     struct StringMaker<signed char[SZ]> {
+         static std::string convert(signed char const* str) {
+             return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
+         }
+     };
+     template<int SZ>
+     struct StringMaker<unsigned char[SZ]> {
+         static std::string convert(unsigned char const* str) {
+             return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
+         }
+     };
+ 
+ #if defined(CATCH_CONFIG_CPP17_BYTE)
+     template<>
+     struct StringMaker<std::byte> {
+         static std::string convert(std::byte value);
+     };
+ #endif // defined(CATCH_CONFIG_CPP17_BYTE)
+     template<>
+     struct StringMaker<int> {
+         static std::string convert(int value);
+     };
+     template<>
+     struct StringMaker<long> {
+         static std::string convert(long value);
+     };
+     template<>
+     struct StringMaker<long long> {
+         static std::string convert(long long value);
+     };
+     template<>
+     struct StringMaker<unsigned int> {
+         static std::string convert(unsigned int value);
+     };
+     template<>
+     struct StringMaker<unsigned long> {
+         static std::string convert(unsigned long value);
+     };
+     template<>
+     struct StringMaker<unsigned long long> {
+         static std::string convert(unsigned long long value);
+     };
+ 
+     template<>
+     struct StringMaker<bool> {
+         static std::string convert(bool b);
+     };
+ 
+     template<>
+     struct StringMaker<char> {
+         static std::string convert(char c);
+     };
+     template<>
+     struct StringMaker<signed char> {
+         static std::string convert(signed char c);
+     };
+     template<>
+     struct StringMaker<unsigned char> {
+         static std::string convert(unsigned char c);
+     };
+ 
+     template<>
+     struct StringMaker<std::nullptr_t> {
+         static std::string convert(std::nullptr_t);
+     };
+ 
+     template<>
+     struct StringMaker<float> {
+         static std::string convert(float value);
+         static int precision;
+     };
+ 
+     template<>
+     struct StringMaker<double> {
+         static std::string convert(double value);
+         static int precision;
+     };
+ 
+     template <typename T>
+     struct StringMaker<T*> {
+         template <typename U>
+         static std::string convert(U* p) {
+             if (p) {
+                 return ::Catch::Detail::rawMemoryToString(p);
+             } else {
+                 return "nullptr";
+             }
+         }
+     };
+ 
+     template <typename R, typename C>
+     struct StringMaker<R C::*> {
+         static std::string convert(R C::* p) {
+             if (p) {
+                 return ::Catch::Detail::rawMemoryToString(p);
+             } else {
+                 return "nullptr";
+             }
+         }
+     };
+ 
+ #if defined(_MANAGED)
+     template <typename T>
+     struct StringMaker<T^> {
+         static std::string convert( T^ ref ) {
+             return ::Catch::Detail::clrReferenceToString(ref);
+         }
+     };
+ #endif
+ 
+     namespace Detail {
+         template<typename InputIterator, typename Sentinel = InputIterator>
+         std::string rangeToString(InputIterator first, Sentinel last) {
+             ReusableStringStream rss;
+             rss << "{ ";
+             if (first != last) {
+                 rss << ::Catch::Detail::stringify(*first);
+                 for (++first; first != last; ++first)
+                     rss << ", " << ::Catch::Detail::stringify(*first);
+             }
+             rss << " }";
+             return rss.str();
+         }
+     }
+ 
+ #ifdef __OBJC__
+     template<>
+     struct StringMaker<NSString*> {
+         static std::string convert(NSString * nsstring) {
+             if (!nsstring)
+                 return "nil";
+             return std::string("@") + [nsstring UTF8String];
+         }
+     };
+     template<>
+     struct StringMaker<NSObject*> {
+         static std::string convert(NSObject* nsObject) {
+             return ::Catch::Detail::stringify([nsObject description]);
+         }
+ 
+     };
+     namespace Detail {
+         inline std::string stringify( NSString* nsstring ) {
+             return StringMaker<NSString*>::convert( nsstring );
+         }
+ 
+     } // namespace Detail
+ #endif // __OBJC__
+ 
+ } // namespace Catch
+ 
+ //////////////////////////////////////////////////////
+ // Separate std-lib types stringification, so it can be selectively enabled
+ // This means that we do not bring in
+ 
+ #if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
+ #  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
+ #  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
+ #  define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
+ #  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+ #  define CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
+ #endif
+ 
+ // Separate std::pair specialization
+ #if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
+ #include <utility>
+ namespace Catch {
+     template<typename T1, typename T2>
+     struct StringMaker<std::pair<T1, T2> > {
+         static std::string convert(const std::pair<T1, T2>& pair) {
+             ReusableStringStream rss;
+             rss << "{ "
+                 << ::Catch::Detail::stringify(pair.first)
+                 << ", "
+                 << ::Catch::Detail::stringify(pair.second)
+                 << " }";
+             return rss.str();
+         }
+     };
+ }
+ #endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
+ 
+ #if defined(CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_OPTIONAL)
+ #include <optional>
+ namespace Catch {
+     template<typename T>
+     struct StringMaker<std::optional<T> > {
+         static std::string convert(const std::optional<T>& optional) {
+             ReusableStringStream rss;
+             if (optional.has_value()) {
+                 rss << ::Catch::Detail::stringify(*optional);
+             } else {
+                 rss << "{ }";
+             }
+             return rss.str();
+         }
+     };
+ }
+ #endif // CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
+ 
+ // Separate std::tuple specialization
+ #if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
+ #include <tuple>
+ namespace Catch {
+     namespace Detail {
+         template<
+             typename Tuple,
+             std::size_t N = 0,
+             bool = (N < std::tuple_size<Tuple>::value)
+             >
+             struct TupleElementPrinter {
+             static void print(const Tuple& tuple, std::ostream& os) {
+                 os << (N ? ", " : " ")
+                     << ::Catch::Detail::stringify(std::get<N>(tuple));
+                 TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
+             }
+         };
+ 
+         template<
+             typename Tuple,
+             std::size_t N
+         >
+             struct TupleElementPrinter<Tuple, N, false> {
+             static void print(const Tuple&, std::ostream&) {}
+         };
+ 
+     }
+ 
+     template<typename ...Types>
+     struct StringMaker<std::tuple<Types...>> {
+         static std::string convert(const std::tuple<Types...>& tuple) {
+             ReusableStringStream rss;
+             rss << '{';
+             Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
+             rss << " }";
+             return rss.str();
+         }
+     };
+ }
+ #endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
+ 
+ #if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_VARIANT)
+ #include <variant>
+ namespace Catch {
+     template<>
+     struct StringMaker<std::monostate> {
+         static std::string convert(const std::monostate&) {
+             return "{ }";
+         }
+     };
+ 
+     template<typename... Elements>
+     struct StringMaker<std::variant<Elements...>> {
+         static std::string convert(const std::variant<Elements...>& variant) {
+             if (variant.valueless_by_exception()) {
+                 return "{valueless variant}";
+             } else {
+                 return std::visit(
+                     [](const auto& value) {
+                         return ::Catch::Detail::stringify(value);
+                     },
+                     variant
+                 );
+             }
+         }
+     };
+ }
+ #endif // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
+ 
+ namespace Catch {
+     // Import begin/ end from std here
+     using std::begin;
+     using std::end;
+ 
+     namespace detail {
+         template <typename...>
+         struct void_type {
+             using type = void;
+         };
+ 
+         template <typename T, typename = void>
+         struct is_range_impl : std::false_type {
+         };
+ 
+         template <typename T>
+         struct is_range_impl<T, typename void_type<decltype(begin(std::declval<T>()))>::type> : std::true_type {
+         };
+     } // namespace detail
+ 
+     template <typename T>
+     struct is_range : detail::is_range_impl<T> {
+     };
+ 
+ #if defined(_MANAGED) // Managed types are never ranges
+     template <typename T>
+     struct is_range<T^> {
+         static const bool value = false;
+     };
+ #endif
+ 
+     template<typename Range>
+     std::string rangeToString( Range const& range ) {
+         return ::Catch::Detail::rangeToString( begin( range ), end( range ) );
+     }
+ 
+     // Handle vector<bool> specially
+     template<typename Allocator>
+     std::string rangeToString( std::vector<bool, Allocator> const& v ) {
+         ReusableStringStream rss;
+         rss << "{ ";
+         bool first = true;
+         for( bool b : v ) {
+             if( first )
+                 first = false;
+             else
+                 rss << ", ";
+             rss << ::Catch::Detail::stringify( b );
+         }
+         rss << " }";
+         return rss.str();
+     }
+ 
+     template<typename R>
+     struct StringMaker<R, typename std::enable_if<is_range<R>::value && !::Catch::Detail::IsStreamInsertable<R>::value>::type> {
+         static std::string convert( R const& range ) {
+             return rangeToString( range );
+         }
+     };
+ 
+     template <typename T, int SZ>
+     struct StringMaker<T[SZ]> {
+         static std::string convert(T const(&arr)[SZ]) {
+             return rangeToString(arr);
+         }
+     };
+ 
+ } // namespace Catch
+ 
+ // Separate std::chrono::duration specialization
+ #if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
+ #include <ctime>
+ #include <ratio>
+ #include <chrono>
+ 
+ namespace Catch {
+ 
+ template <class Ratio>
+ struct ratio_string {
+     static std::string symbol();
+ };
+ 
+ template <class Ratio>
+ std::string ratio_string<Ratio>::symbol() {
+     Catch::ReusableStringStream rss;
+     rss << '[' << Ratio::num << '/'
+         << Ratio::den << ']';
+     return rss.str();
+ }
+ template <>
+ struct ratio_string<std::atto> {
+     static std::string symbol();
+ };
+ template <>
+ struct ratio_string<std::femto> {
+     static std::string symbol();
+ };
+ template <>
+ struct ratio_string<std::pico> {
+     static std::string symbol();
+ };
+ template <>
+ struct ratio_string<std::nano> {
+     static std::string symbol();
+ };
+ template <>
+ struct ratio_string<std::micro> {
+     static std::string symbol();
+ };
+ template <>
+ struct ratio_string<std::milli> {
+     static std::string symbol();
+ };
+ 
+     ////////////
+     // std::chrono::duration specializations
+     template<typename Value, typename Ratio>
+     struct StringMaker<std::chrono::duration<Value, Ratio>> {
+         static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
+             ReusableStringStream rss;
+             rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
+             return rss.str();
+         }
+     };
+     template<typename Value>
+     struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
+         static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
+             ReusableStringStream rss;
+             rss << duration.count() << " s";
+             return rss.str();
+         }
+     };
+     template<typename Value>
+     struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
+         static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
+             ReusableStringStream rss;
+             rss << duration.count() << " m";
+             return rss.str();
+         }
+     };
+     template<typename Value>
+     struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
+         static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
+             ReusableStringStream rss;
+             rss << duration.count() << " h";
+             return rss.str();
+         }
+     };
+ 
+     ////////////
+     // std::chrono::time_point specialization
+     // Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
+     template<typename Clock, typename Duration>
+     struct StringMaker<std::chrono::time_point<Clock, Duration>> {
+         static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
+             return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
+         }
+     };
+     // std::chrono::time_point<system_clock> specialization
+     template<typename Duration>
+     struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
+         static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
+             auto converted = std::chrono::system_clock::to_time_t(time_point);
+ 
+ #ifdef _MSC_VER
+             std::tm timeInfo = {};
+             gmtime_s(&timeInfo, &converted);
+ #else
+             std::tm* timeInfo = std::gmtime(&converted);
+ #endif
+ 
+             auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
+             char timeStamp[timeStampSize];
+             const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
+ 
+ #ifdef _MSC_VER
+             std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
+ #else
+             std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
+ #endif
+             return std::string(timeStamp);
+         }
+     };
+ }
+ #endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+ 
+ #define INTERNAL_CATCH_REGISTER_ENUM( enumName, ... ) \
+ namespace Catch { \
+     template<> struct StringMaker<enumName> { \
+         static std::string convert( enumName value ) { \
+             static const auto& enumInfo = ::Catch::getMutableRegistryHub().getMutableEnumValuesRegistry().registerEnum( #enumName, #__VA_ARGS__, { __VA_ARGS__ } ); \
+             return static_cast<std::string>(enumInfo.lookup( static_cast<int>( value ) )); \
+         } \
+     }; \
+ }
+ 
+ #define CATCH_REGISTER_ENUM( enumName, ... ) INTERNAL_CATCH_REGISTER_ENUM( enumName, __VA_ARGS__ )
+ 
+ #ifdef _MSC_VER
+ #pragma warning(pop)
+ #endif
+ 
+ // end catch_tostring.h
+ #include <iosfwd>
+ 
+ #ifdef _MSC_VER
+ #pragma warning(push)
+ #pragma warning(disable:4389) // '==' : signed/unsigned mismatch
+ #pragma warning(disable:4018) // more "signed/unsigned mismatch"
+ #pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
+ #pragma warning(disable:4180) // qualifier applied to function type has no meaning
+ #pragma warning(disable:4800) // Forcing result to true or false
+ #endif
+ 
+ namespace Catch {
+ 
+     struct ITransientExpression {
+         auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
+         auto getResult() const -> bool { return m_result; }
+         virtual void streamReconstructedExpression( std::ostream &os ) const = 0;
+ 
+         ITransientExpression( bool isBinaryExpression, bool result )
+         :   m_isBinaryExpression( isBinaryExpression ),
+             m_result( result )
+         {}
+ 
+         // We don't actually need a virtual destructor, but many static analysers
+         // complain if it's not here :-(
+         virtual ~ITransientExpression();
+ 
+         bool m_isBinaryExpression;
+         bool m_result;
+ 
+     };
+ 
+     void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );
+ 
+     template<typename LhsT, typename RhsT>
+     class BinaryExpr  : public ITransientExpression {
+         LhsT m_lhs;
+         StringRef m_op;
+         RhsT m_rhs;
+ 
+         void streamReconstructedExpression( std::ostream &os ) const override {
+             formatReconstructedExpression
+                     ( os, Catch::Detail::stringify( m_lhs ), m_op, Catch::Detail::stringify( m_rhs ) );
+         }
+ 
+     public:
+         BinaryExpr( bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs )
+         :   ITransientExpression{ true, comparisonResult },
+             m_lhs( lhs ),
+             m_op( op ),
+             m_rhs( rhs )
+         {}
+ 
+         template<typename T>
+         auto operator && ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator || ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator == ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator != ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator > ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator < ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator >= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename T>
+         auto operator <= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<T>::value,
+             "chained comparisons are not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+     };
+ 
+     template<typename LhsT>
+     class UnaryExpr : public ITransientExpression {
+         LhsT m_lhs;
+ 
+         void streamReconstructedExpression( std::ostream &os ) const override {
+             os << Catch::Detail::stringify( m_lhs );
+         }
+ 
+     public:
+         explicit UnaryExpr( LhsT lhs )
+         :   ITransientExpression{ false, static_cast<bool>(lhs) },
+             m_lhs( lhs )
+         {}
+     };
+ 
+     // Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
+     template<typename LhsT, typename RhsT>
+     auto compareEqual( LhsT const& lhs, RhsT const& rhs ) -> bool { return static_cast<bool>(lhs == rhs); }
+     template<typename T>
+     auto compareEqual( T* const& lhs, int rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
+     template<typename T>
+     auto compareEqual( T* const& lhs, long rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
+     template<typename T>
+     auto compareEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
+     template<typename T>
+     auto compareEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
+ 
+     template<typename LhsT, typename RhsT>
+     auto compareNotEqual( LhsT const& lhs, RhsT&& rhs ) -> bool { return static_cast<bool>(lhs != rhs); }
+     template<typename T>
+     auto compareNotEqual( T* const& lhs, int rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
+     template<typename T>
+     auto compareNotEqual( T* const& lhs, long rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
+     template<typename T>
+     auto compareNotEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
+     template<typename T>
+     auto compareNotEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
+ 
+     template<typename LhsT>
+     class ExprLhs {
+         LhsT m_lhs;
+     public:
+         explicit ExprLhs( LhsT lhs ) : m_lhs( lhs ) {}
+ 
+         template<typename RhsT>
+         auto operator == ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { compareEqual( m_lhs, rhs ), m_lhs, "==", rhs };
+         }
+         auto operator == ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
+             return { m_lhs == rhs, m_lhs, "==", rhs };
+         }
+ 
+         template<typename RhsT>
+         auto operator != ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { compareNotEqual( m_lhs, rhs ), m_lhs, "!=", rhs };
+         }
+         auto operator != ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
+             return { m_lhs != rhs, m_lhs, "!=", rhs };
+         }
+ 
+         template<typename RhsT>
+         auto operator > ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs };
+         }
+         template<typename RhsT>
+         auto operator < ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs };
+         }
+         template<typename RhsT>
+         auto operator >= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs };
+         }
+         template<typename RhsT>
+         auto operator <= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs };
+         }
+         template <typename RhsT>
+         auto operator | (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs | rhs), m_lhs, "|", rhs };
+         }
+         template <typename RhsT>
+         auto operator & (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs & rhs), m_lhs, "&", rhs };
+         }
+         template <typename RhsT>
+         auto operator ^ (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
+             return { static_cast<bool>(m_lhs ^ rhs), m_lhs, "^", rhs };
+         }
+ 
+         template<typename RhsT>
+         auto operator && ( RhsT const& ) -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<RhsT>::value,
+             "operator&& is not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         template<typename RhsT>
+         auto operator || ( RhsT const& ) -> BinaryExpr<LhsT, RhsT const&> const {
+             static_assert(always_false<RhsT>::value,
+             "operator|| is not supported inside assertions, "
+             "wrap the expression inside parentheses, or decompose it");
+         }
+ 
+         auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
+             return UnaryExpr<LhsT>{ m_lhs };
+         }
+     };
+ 
+     void handleExpression( ITransientExpression const& expr );
+ 
+     template<typename T>
+     void handleExpression( ExprLhs<T> const& expr ) {
+         handleExpression( expr.makeUnaryExpr() );
+     }
+ 
+     struct Decomposer {
+         template<typename T>
+         auto operator <= ( T const& lhs ) -> ExprLhs<T const&> {
+             return ExprLhs<T const&>{ lhs };
+         }
+ 
+         auto operator <=( bool value ) -> ExprLhs<bool> {
+             return ExprLhs<bool>{ value };
+         }
+     };
+ 
+ } // end namespace Catch
+ 
+ #ifdef _MSC_VER
+ #pragma warning(pop)
+ #endif
+ 
+ // end catch_decomposer.h
+ // start catch_interfaces_capture.h
+ 
+ #include <string>
+ #include <chrono>
+ 
+ namespace Catch {
+ 
+     class AssertionResult;
+     struct AssertionInfo;
+     struct SectionInfo;
+     struct SectionEndInfo;
+     struct MessageInfo;
+     struct MessageBuilder;
+     struct Counts;
+     struct AssertionReaction;
+     struct SourceLineInfo;
+ 
+     struct ITransientExpression;
+     struct IGeneratorTracker;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+     struct BenchmarkInfo;
+     template <typename Duration = std::chrono::duration<double, std::nano>>
+     struct BenchmarkStats;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     struct IResultCapture {
+ 
+         virtual ~IResultCapture();
+ 
+         virtual bool sectionStarted(    SectionInfo const& sectionInfo,
+                                         Counts& assertions ) = 0;
+         virtual void sectionEnded( SectionEndInfo const& endInfo ) = 0;
+         virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) = 0;
+ 
+         virtual auto acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker& = 0;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         virtual void benchmarkPreparing( std::string const& name ) = 0;
+         virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
+         virtual void benchmarkEnded( BenchmarkStats<> const& stats ) = 0;
+         virtual void benchmarkFailed( std::string const& error ) = 0;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+         virtual void pushScopedMessage( MessageInfo const& message ) = 0;
+         virtual void popScopedMessage( MessageInfo const& message ) = 0;
+ 
+         virtual void emplaceUnscopedMessage( MessageBuilder const& builder ) = 0;
+ 
+         virtual void handleFatalErrorCondition( StringRef message ) = 0;
+ 
+         virtual void handleExpr
+                 (   AssertionInfo const& info,
+                     ITransientExpression const& expr,
+                     AssertionReaction& reaction ) = 0;
+         virtual void handleMessage
+                 (   AssertionInfo const& info,
+                     ResultWas::OfType resultType,
+                     StringRef const& message,
+                     AssertionReaction& reaction ) = 0;
+         virtual void handleUnexpectedExceptionNotThrown
+                 (   AssertionInfo const& info,
+                     AssertionReaction& reaction ) = 0;
+         virtual void handleUnexpectedInflightException
+                 (   AssertionInfo const& info,
+                     std::string const& message,
+                     AssertionReaction& reaction ) = 0;
+         virtual void handleIncomplete
+                 (   AssertionInfo const& info ) = 0;
+         virtual void handleNonExpr
+                 (   AssertionInfo const &info,
+                     ResultWas::OfType resultType,
+                     AssertionReaction &reaction ) = 0;
+ 
+         virtual bool lastAssertionPassed() = 0;
+         virtual void assertionPassed() = 0;
+ 
+         // Deprecated, do not use:
+         virtual std::string getCurrentTestName() const = 0;
+         virtual const AssertionResult* getLastResult() const = 0;
+         virtual void exceptionEarlyReported() = 0;
+     };
+ 
+     IResultCapture& getResultCapture();
+ }
+ 
+ // end catch_interfaces_capture.h
+ namespace Catch {
+ 
+     struct TestFailureException{};
+     struct AssertionResultData;
+     struct IResultCapture;
+     class RunContext;
+ 
+     class LazyExpression {
+         friend class AssertionHandler;
+         friend struct AssertionStats;
+         friend class RunContext;
+ 
+         ITransientExpression const* m_transientExpression = nullptr;
+         bool m_isNegated;
+     public:
+         LazyExpression( bool isNegated );
+         LazyExpression( LazyExpression const& other );
+         LazyExpression& operator = ( LazyExpression const& ) = delete;
+ 
+         explicit operator bool() const;
+ 
+         friend auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream&;
+     };
+ 
+     struct AssertionReaction {
+         bool shouldDebugBreak = false;
+         bool shouldThrow = false;
+     };
+ 
+     class AssertionHandler {
+         AssertionInfo m_assertionInfo;
+         AssertionReaction m_reaction;
+         bool m_completed = false;
+         IResultCapture& m_resultCapture;
+ 
+     public:
+         AssertionHandler
+             (   StringRef const& macroName,
+                 SourceLineInfo const& lineInfo,
+                 StringRef capturedExpression,
+                 ResultDisposition::Flags resultDisposition );
+         ~AssertionHandler() {
+             if ( !m_completed ) {
+                 m_resultCapture.handleIncomplete( m_assertionInfo );
+             }
+         }
+ 
+         template<typename T>
+         void handleExpr( ExprLhs<T> const& expr ) {
+             handleExpr( expr.makeUnaryExpr() );
+         }
+         void handleExpr( ITransientExpression const& expr );
+ 
+         void handleMessage(ResultWas::OfType resultType, StringRef const& message);
+ 
+         void handleExceptionThrownAsExpected();
+         void handleUnexpectedExceptionNotThrown();
+         void handleExceptionNotThrownAsExpected();
+         void handleThrowingCallSkipped();
+         void handleUnexpectedInflightException();
+ 
+         void complete();
+         void setCompleted();
+ 
+         // query
+         auto allowThrows() const -> bool;
+     };
+ 
+     void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString );
+ 
+ } // namespace Catch
+ 
+ // end catch_assertionhandler.h
+ // start catch_message.h
+ 
+ #include <string>
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     struct MessageInfo {
+         MessageInfo(    StringRef const& _macroName,
+                         SourceLineInfo const& _lineInfo,
+                         ResultWas::OfType _type );
+ 
+         StringRef macroName;
+         std::string message;
+         SourceLineInfo lineInfo;
+         ResultWas::OfType type;
+         unsigned int sequence;
+ 
+         bool operator == ( MessageInfo const& other ) const;
+         bool operator < ( MessageInfo const& other ) const;
+     private:
+         static unsigned int globalCount;
+     };
+ 
+     struct MessageStream {
+ 
+         template<typename T>
+         MessageStream& operator << ( T const& value ) {
+             m_stream << value;
+             return *this;
+         }
+ 
+         ReusableStringStream m_stream;
+     };
+ 
+     struct MessageBuilder : MessageStream {
+         MessageBuilder( StringRef const& macroName,
+                         SourceLineInfo const& lineInfo,
+                         ResultWas::OfType type );
+ 
+         template<typename T>
+         MessageBuilder& operator << ( T const& value ) {
+             m_stream << value;
+             return *this;
+         }
+ 
+         MessageInfo m_info;
+     };
+ 
+     class ScopedMessage {
+     public:
+         explicit ScopedMessage( MessageBuilder const& builder );
+         ScopedMessage( ScopedMessage& duplicate ) = delete;
+         ScopedMessage( ScopedMessage&& old );
+         ~ScopedMessage();
+ 
+         MessageInfo m_info;
+         bool m_moved;
+     };
+ 
+     class Capturer {
+         std::vector<MessageInfo> m_messages;
+         IResultCapture& m_resultCapture = getResultCapture();
+         size_t m_captured = 0;
+     public:
+         Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names );
+         ~Capturer();
+ 
+         void captureValue( size_t index, std::string const& value );
+ 
+         template<typename T>
+         void captureValues( size_t index, T const& value ) {
+             captureValue( index, Catch::Detail::stringify( value ) );
+         }
+ 
+         template<typename T, typename... Ts>
+         void captureValues( size_t index, T const& value, Ts const&... values ) {
+             captureValue( index, Catch::Detail::stringify(value) );
+             captureValues( index+1, values... );
+         }
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_message.h
+ #if !defined(CATCH_CONFIG_DISABLE)
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
+   #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
+ #else
+   #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
+ #endif
+ 
+ #if defined(CATCH_CONFIG_FAST_COMPILE) || defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ // Another way to speed-up compilation is to omit local try-catch for REQUIRE*
+ // macros.
+ #define INTERNAL_CATCH_TRY
+ #define INTERNAL_CATCH_CATCH( capturer )
+ 
+ #else // CATCH_CONFIG_FAST_COMPILE
+ 
+ #define INTERNAL_CATCH_TRY try
+ #define INTERNAL_CATCH_CATCH( handler ) catch(...) { handler.handleUnexpectedInflightException(); }
+ 
+ #endif
+ 
+ #define INTERNAL_CATCH_REACT( handler ) handler.complete();
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
+     do { \
+         CATCH_INTERNAL_IGNORE_BUT_WARN(__VA_ARGS__); \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
+         INTERNAL_CATCH_TRY { \
+             CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+             CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
+             catchAssertionHandler.handleExpr( Catch::Decomposer() <= __VA_ARGS__ ); \
+             CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+         } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( (void)0, (false) && static_cast<bool>( !!(__VA_ARGS__) ) )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
+     INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
+     if( Catch::getResultCapture().lastAssertionPassed() )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
+     INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
+     if( !Catch::getResultCapture().lastAssertionPassed() )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
+         try { \
+             static_cast<void>(__VA_ARGS__); \
+             catchAssertionHandler.handleExceptionNotThrownAsExpected(); \
+         } \
+         catch( ... ) { \
+             catchAssertionHandler.handleUnexpectedInflightException(); \
+         } \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
+         if( catchAssertionHandler.allowThrows() ) \
+             try { \
+                 static_cast<void>(__VA_ARGS__); \
+                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
+             } \
+             catch( ... ) { \
+                 catchAssertionHandler.handleExceptionThrownAsExpected(); \
+             } \
+         else \
+             catchAssertionHandler.handleThrowingCallSkipped(); \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
+         if( catchAssertionHandler.allowThrows() ) \
+             try { \
+                 static_cast<void>(expr); \
+                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
+             } \
+             catch( exceptionType const& ) { \
+                 catchAssertionHandler.handleExceptionThrownAsExpected(); \
+             } \
+             catch( ... ) { \
+                 catchAssertionHandler.handleUnexpectedInflightException(); \
+             } \
+         else \
+             catchAssertionHandler.handleThrowingCallSkipped(); \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), resultDisposition ); \
+         catchAssertionHandler.handleMessage( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_CAPTURE( varName, macroName, ... ) \
+     auto varName = Catch::Capturer( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info, #__VA_ARGS__ ); \
+     varName.captureValues( 0, __VA_ARGS__ )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_INFO( macroName, log ) \
+     Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log );
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_UNSCOPED_INFO( macroName, log ) \
+     Catch::getResultCapture().emplaceUnscopedMessage( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ // Although this is matcher-based, it can be used with just a string
+ #define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+         if( catchAssertionHandler.allowThrows() ) \
+             try { \
+                 static_cast<void>(__VA_ARGS__); \
+                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
+             } \
+             catch( ... ) { \
+                 Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher##_catch_sr ); \
+             } \
+         else \
+             catchAssertionHandler.handleThrowingCallSkipped(); \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ #endif // CATCH_CONFIG_DISABLE
+ 
+ // end catch_capture.hpp
+ // start catch_section.h
+ 
+ // start catch_section_info.h
+ 
+ // start catch_totals.h
+ 
+ #include <cstddef>
+ 
+ namespace Catch {
+ 
+     struct Counts {
+         Counts operator - ( Counts const& other ) const;
+         Counts& operator += ( Counts const& other );
+ 
+         std::size_t total() const;
+         bool allPassed() const;
+         bool allOk() const;
+ 
+         std::size_t passed = 0;
+         std::size_t failed = 0;
+         std::size_t failedButOk = 0;
+     };
+ 
+     struct Totals {
+ 
+         Totals operator - ( Totals const& other ) const;
+         Totals& operator += ( Totals const& other );
+ 
+         Totals delta( Totals const& prevTotals ) const;
+ 
+         int error = 0;
+         Counts assertions;
+         Counts testCases;
+     };
+ }
+ 
+ // end catch_totals.h
+ #include <string>
+ 
+ namespace Catch {
+ 
+     struct SectionInfo {
+         SectionInfo
+             (   SourceLineInfo const& _lineInfo,
+                 std::string const& _name );
+ 
+         // Deprecated
+         SectionInfo
+             (   SourceLineInfo const& _lineInfo,
+                 std::string const& _name,
+                 std::string const& ) : SectionInfo( _lineInfo, _name ) {}
+ 
+         std::string name;
+         std::string description; // !Deprecated: this will always be empty
+         SourceLineInfo lineInfo;
+     };
+ 
+     struct SectionEndInfo {
+         SectionInfo sectionInfo;
+         Counts prevAssertions;
+         double durationInSeconds;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_section_info.h
+ // start catch_timer.h
+ 
+ #include <cstdint>
+ 
+ namespace Catch {
+ 
+     auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
+     auto getEstimatedClockResolution() -> uint64_t;
+ 
+     class Timer {
+         uint64_t m_nanoseconds = 0;
+     public:
+         void start();
+         auto getElapsedNanoseconds() const -> uint64_t;
+         auto getElapsedMicroseconds() const -> uint64_t;
+         auto getElapsedMilliseconds() const -> unsigned int;
+         auto getElapsedSeconds() const -> double;
+     };
+ 
+ } // namespace Catch
+ 
+ // end catch_timer.h
+ #include <string>
+ 
+ namespace Catch {
+ 
+     class Section : NonCopyable {
+     public:
+         Section( SectionInfo const& info );
+         ~Section();
+ 
+         // This indicates whether the section should be executed or not
+         explicit operator bool() const;
+ 
+     private:
+         SectionInfo m_info;
+ 
+         std::string m_name;
+         Counts m_assertions;
+         bool m_sectionIncluded;
+         Timer m_timer;
+     };
+ 
+ } // end namespace Catch
+ 
+ #define INTERNAL_CATCH_SECTION( ... ) \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+     CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+     if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) ) \
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+ #define INTERNAL_CATCH_DYNAMIC_SECTION( ... ) \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+     CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+     if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, (Catch::ReusableStringStream() << __VA_ARGS__).str() ) ) \
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+ // end catch_section.h
+ // start catch_interfaces_exception.h
+ 
+ // start catch_interfaces_registry_hub.h
+ 
+ #include <string>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     class TestCase;
+     struct ITestCaseRegistry;
+     struct IExceptionTranslatorRegistry;
+     struct IExceptionTranslator;
+     struct IReporterRegistry;
+     struct IReporterFactory;
+     struct ITagAliasRegistry;
+     struct IMutableEnumValuesRegistry;
+ 
+     class StartupExceptionRegistry;
+ 
+     using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
+ 
+     struct IRegistryHub {
+         virtual ~IRegistryHub();
+ 
+         virtual IReporterRegistry const& getReporterRegistry() const = 0;
+         virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
+         virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;
+         virtual IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const = 0;
+ 
+         virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
+     };
+ 
+     struct IMutableRegistryHub {
+         virtual ~IMutableRegistryHub();
+         virtual void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) = 0;
+         virtual void registerListener( IReporterFactoryPtr const& factory ) = 0;
+         virtual void registerTest( TestCase const& testInfo ) = 0;
+         virtual void registerTranslator( const IExceptionTranslator* translator ) = 0;
+         virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
+         virtual void registerStartupException() noexcept = 0;
+         virtual IMutableEnumValuesRegistry& getMutableEnumValuesRegistry() = 0;
+     };
+ 
+     IRegistryHub const& getRegistryHub();
+     IMutableRegistryHub& getMutableRegistryHub();
+     void cleanUp();
+     std::string translateActiveException();
+ 
+ }
+ 
+ // end catch_interfaces_registry_hub.h
+ #if defined(CATCH_CONFIG_DISABLE)
+     #define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
+         static std::string translatorName( signature )
+ #endif
+ 
+ #include <exception>
+ #include <string>
+ #include <vector>
+ 
+ namespace Catch {
+     using exceptionTranslateFunction = std::string(*)();
+ 
+     struct IExceptionTranslator;
+     using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;
+ 
+     struct IExceptionTranslator {
+         virtual ~IExceptionTranslator();
+         virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const = 0;
+     };
+ 
+     struct IExceptionTranslatorRegistry {
+         virtual ~IExceptionTranslatorRegistry();
+ 
+         virtual std::string translateActiveException() const = 0;
+     };
+ 
+     class ExceptionTranslatorRegistrar {
+         template<typename T>
+         class ExceptionTranslator : public IExceptionTranslator {
+         public:
+ 
+             ExceptionTranslator( std::string(*translateFunction)( T& ) )
+             : m_translateFunction( translateFunction )
+             {}
+ 
+             std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const override {
+ #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+                 return "";
+ #else
+                 try {
+                     if( it == itEnd )
+                         std::rethrow_exception(std::current_exception());
+                     else
+                         return (*it)->translate( it+1, itEnd );
+                 }
+                 catch( T& ex ) {
+                     return m_translateFunction( ex );
+                 }
+ #endif
+             }
+ 
+         protected:
+             std::string(*m_translateFunction)( T& );
+         };
+ 
+     public:
+         template<typename T>
+         ExceptionTranslatorRegistrar( std::string(*translateFunction)( T& ) ) {
+             getMutableRegistryHub().registerTranslator
+                 ( new ExceptionTranslator<T>( translateFunction ) );
+         }
+     };
+ }
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
+     static std::string translatorName( signature ); \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+     namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); } \
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+     static std::string translatorName( signature )
+ 
+ #define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
+ 
+ // end catch_interfaces_exception.h
+ // start catch_approx.h
+ 
+ #include <type_traits>
+ 
+ namespace Catch {
+ namespace Detail {
+ 
+     class Approx {
+     private:
+         bool equalityComparisonImpl(double other) const;
+         // Validates the new margin (margin >= 0)
+         // out-of-line to avoid including stdexcept in the header
+         void setMargin(double margin);
+         // Validates the new epsilon (0 < epsilon < 1)
+         // out-of-line to avoid including stdexcept in the header
+         void setEpsilon(double epsilon);
+ 
+     public:
+         explicit Approx ( double value );
+ 
+         static Approx custom();
+ 
+         Approx operator-() const;
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         Approx operator()( T const& value ) const {
+             Approx approx( static_cast<double>(value) );
+             approx.m_epsilon = m_epsilon;
+             approx.m_margin = m_margin;
+             approx.m_scale = m_scale;
+             return approx;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         explicit Approx( T const& value ): Approx(static_cast<double>(value))
+         {}
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator == ( const T& lhs, Approx const& rhs ) {
+             auto lhs_v = static_cast<double>(lhs);
+             return rhs.equalityComparisonImpl(lhs_v);
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator == ( Approx const& lhs, const T& rhs ) {
+             return operator==( rhs, lhs );
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator != ( T const& lhs, Approx const& rhs ) {
+             return !operator==( lhs, rhs );
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator != ( Approx const& lhs, T const& rhs ) {
+             return !operator==( rhs, lhs );
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator <= ( T const& lhs, Approx const& rhs ) {
+             return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator <= ( Approx const& lhs, T const& rhs ) {
+             return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator >= ( T const& lhs, Approx const& rhs ) {
+             return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         friend bool operator >= ( Approx const& lhs, T const& rhs ) {
+             return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         Approx& epsilon( T const& newEpsilon ) {
+             double epsilonAsDouble = static_cast<double>(newEpsilon);
+             setEpsilon(epsilonAsDouble);
+             return *this;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         Approx& margin( T const& newMargin ) {
+             double marginAsDouble = static_cast<double>(newMargin);
+             setMargin(marginAsDouble);
+             return *this;
+         }
+ 
+         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+         Approx& scale( T const& newScale ) {
+             m_scale = static_cast<double>(newScale);
+             return *this;
+         }
+ 
+         std::string toString() const;
+ 
+     private:
+         double m_epsilon;
+         double m_margin;
+         double m_scale;
+         double m_value;
+     };
+ } // end namespace Detail
+ 
+ namespace literals {
+     Detail::Approx operator "" _a(long double val);
+     Detail::Approx operator "" _a(unsigned long long val);
+ } // end namespace literals
+ 
+ template<>
+ struct StringMaker<Catch::Detail::Approx> {
+     static std::string convert(Catch::Detail::Approx const& value);
+ };
+ 
+ } // end namespace Catch
+ 
+ // end catch_approx.h
+ // start catch_string_manip.h
+ 
+ #include <string>
+ #include <iosfwd>
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     bool startsWith( std::string const& s, std::string const& prefix );
+     bool startsWith( std::string const& s, char prefix );
+     bool endsWith( std::string const& s, std::string const& suffix );
+     bool endsWith( std::string const& s, char suffix );
+     bool contains( std::string const& s, std::string const& infix );
+     void toLowerInPlace( std::string& s );
+     std::string toLower( std::string const& s );
+     //! Returns a new string without whitespace at the start/end
+     std::string trim( std::string const& str );
+     //! Returns a substring of the original ref without whitespace. Beware lifetimes!
+     StringRef trim(StringRef ref);
+ 
+     // !!! Be aware, returns refs into original string - make sure original string outlives them
+     std::vector<StringRef> splitStringRef( StringRef str, char delimiter );
+     bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
+ 
+     struct pluralise {
+         pluralise( std::size_t count, std::string const& label );
+ 
+         friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
+ 
+         std::size_t m_count;
+         std::string m_label;
+     };
+ }
+ 
+ // end catch_string_manip.h
+ #ifndef CATCH_CONFIG_DISABLE_MATCHERS
+ // start catch_capture_matchers.h
+ 
+ // start catch_matchers.h
+ 
+ #include <string>
+ #include <vector>
+ 
+ namespace Catch {
+ namespace Matchers {
+     namespace Impl {
+ 
+         template<typename ArgT> struct MatchAllOf;
+         template<typename ArgT> struct MatchAnyOf;
+         template<typename ArgT> struct MatchNotOf;
+ 
+         class MatcherUntypedBase {
+         public:
+             MatcherUntypedBase() = default;
+             MatcherUntypedBase ( MatcherUntypedBase const& ) = default;
+             MatcherUntypedBase& operator = ( MatcherUntypedBase const& ) = delete;
+             std::string toString() const;
+ 
+         protected:
+             virtual ~MatcherUntypedBase();
+             virtual std::string describe() const = 0;
+             mutable std::string m_cachedToString;
+         };
+ 
+ #ifdef __clang__
+ #    pragma clang diagnostic push
+ #    pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+ #endif
+ 
+         template<typename ObjectT>
+         struct MatcherMethod {
+             virtual bool match( ObjectT const& arg ) const = 0;
+         };
+ 
+ #if defined(__OBJC__)
+         // Hack to fix Catch GH issue #1661. Could use id for generic Object support.
+         // use of const for Object pointers is very uncommon and under ARC it causes some kind of signature mismatch that breaks compilation
+         template<>
+         struct MatcherMethod<NSString*> {
+             virtual bool match( NSString* arg ) const = 0;
+         };
+ #endif
+ 
+ #ifdef __clang__
+ #    pragma clang diagnostic pop
+ #endif
+ 
+         template<typename T>
+         struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {
+ 
+             MatchAllOf<T> operator && ( MatcherBase const& other ) const;
+             MatchAnyOf<T> operator || ( MatcherBase const& other ) const;
+             MatchNotOf<T> operator ! () const;
+         };
+ 
+         template<typename ArgT>
+         struct MatchAllOf : MatcherBase<ArgT> {
+             bool match( ArgT const& arg ) const override {
+                 for( auto matcher : m_matchers ) {
+                     if (!matcher->match(arg))
+                         return false;
+                 }
+                 return true;
+             }
+             std::string describe() const override {
+                 std::string description;
+                 description.reserve( 4 + m_matchers.size()*32 );
+                 description += "( ";
+                 bool first = true;
+                 for( auto matcher : m_matchers ) {
+                     if( first )
+                         first = false;
+                     else
+                         description += " and ";
+                     description += matcher->toString();
+                 }
+                 description += " )";
+                 return description;
+             }
+ 
+             MatchAllOf<ArgT> operator && ( MatcherBase<ArgT> const& other ) {
+                 auto copy(*this);
+                 copy.m_matchers.push_back( &other );
+                 return copy;
+             }
+ 
+             std::vector<MatcherBase<ArgT> const*> m_matchers;
+         };
+         template<typename ArgT>
+         struct MatchAnyOf : MatcherBase<ArgT> {
+ 
+             bool match( ArgT const& arg ) const override {
+                 for( auto matcher : m_matchers ) {
+                     if (matcher->match(arg))
+                         return true;
+                 }
+                 return false;
+             }
+             std::string describe() const override {
+                 std::string description;
+                 description.reserve( 4 + m_matchers.size()*32 );
+                 description += "( ";
+                 bool first = true;
+                 for( auto matcher : m_matchers ) {
+                     if( first )
+                         first = false;
+                     else
+                         description += " or ";
+                     description += matcher->toString();
+                 }
+                 description += " )";
+                 return description;
+             }
+ 
+             MatchAnyOf<ArgT> operator || ( MatcherBase<ArgT> const& other ) {
+                 auto copy(*this);
+                 copy.m_matchers.push_back( &other );
+                 return copy;
+             }
+ 
+             std::vector<MatcherBase<ArgT> const*> m_matchers;
+         };
+ 
+         template<typename ArgT>
+         struct MatchNotOf : MatcherBase<ArgT> {
+ 
+             MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ) : m_underlyingMatcher( underlyingMatcher ) {}
+ 
+             bool match( ArgT const& arg ) const override {
+                 return !m_underlyingMatcher.match( arg );
+             }
+ 
+             std::string describe() const override {
+                 return "not " + m_underlyingMatcher.toString();
+             }
+             MatcherBase<ArgT> const& m_underlyingMatcher;
+         };
+ 
+         template<typename T>
+         MatchAllOf<T> MatcherBase<T>::operator && ( MatcherBase const& other ) const {
+             return MatchAllOf<T>() && *this && other;
+         }
+         template<typename T>
+         MatchAnyOf<T> MatcherBase<T>::operator || ( MatcherBase const& other ) const {
+             return MatchAnyOf<T>() || *this || other;
+         }
+         template<typename T>
+         MatchNotOf<T> MatcherBase<T>::operator ! () const {
+             return MatchNotOf<T>( *this );
+         }
+ 
+     } // namespace Impl
+ 
+ } // namespace Matchers
+ 
+ using namespace Matchers;
+ using Matchers::Impl::MatcherBase;
+ 
+ } // namespace Catch
+ 
+ // end catch_matchers.h
+ // start catch_matchers_exception.hpp
+ 
+ namespace Catch {
+ namespace Matchers {
+ namespace Exception {
+ 
+ class ExceptionMessageMatcher : public MatcherBase<std::exception> {
+     std::string m_message;
+ public:
+ 
+     ExceptionMessageMatcher(std::string const& message):
+         m_message(message)
+     {}
+ 
+     bool match(std::exception const& ex) const override;
+ 
+     std::string describe() const override;
+ };
+ 
+ } // namespace Exception
+ 
+ Exception::ExceptionMessageMatcher Message(std::string const& message);
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ 
+ // end catch_matchers_exception.hpp
+ // start catch_matchers_floating.h
+ 
+ namespace Catch {
+ namespace Matchers {
+ 
+     namespace Floating {
+ 
+         enum class FloatingPointKind : uint8_t;
+ 
+         struct WithinAbsMatcher : MatcherBase<double> {
+             WithinAbsMatcher(double target, double margin);
+             bool match(double const& matchee) const override;
+             std::string describe() const override;
+         private:
+             double m_target;
+             double m_margin;
+         };
+ 
+         struct WithinUlpsMatcher : MatcherBase<double> {
+             WithinUlpsMatcher(double target, uint64_t ulps, FloatingPointKind baseType);
+             bool match(double const& matchee) const override;
+             std::string describe() const override;
+         private:
+             double m_target;
+             uint64_t m_ulps;
+             FloatingPointKind m_type;
+         };
+ 
+         // Given IEEE-754 format for floats and doubles, we can assume
+         // that float -> double promotion is lossless. Given this, we can
+         // assume that if we do the standard relative comparison of
+         // |lhs - rhs| <= epsilon * max(fabs(lhs), fabs(rhs)), then we get
+         // the same result if we do this for floats, as if we do this for
+         // doubles that were promoted from floats.
+         struct WithinRelMatcher : MatcherBase<double> {
+             WithinRelMatcher(double target, double epsilon);
+             bool match(double const& matchee) const override;
+             std::string describe() const override;
+         private:
+             double m_target;
+             double m_epsilon;
+         };
+ 
+     } // namespace Floating
+ 
+     // The following functions create the actual matcher objects.
+     // This allows the types to be inferred
+     Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff);
+     Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff);
+     Floating::WithinAbsMatcher WithinAbs(double target, double margin);
+     Floating::WithinRelMatcher WithinRel(double target, double eps);
+     // defaults epsilon to 100*numeric_limits<double>::epsilon()
+     Floating::WithinRelMatcher WithinRel(double target);
+     Floating::WithinRelMatcher WithinRel(float target, float eps);
+     // defaults epsilon to 100*numeric_limits<float>::epsilon()
+     Floating::WithinRelMatcher WithinRel(float target);
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ 
+ // end catch_matchers_floating.h
+ // start catch_matchers_generic.hpp
+ 
+ #include <functional>
+ #include <string>
+ 
+ namespace Catch {
+ namespace Matchers {
+ namespace Generic {
+ 
+ namespace Detail {
+     std::string finalizeDescription(const std::string& desc);
+ }
+ 
+ template <typename T>
+ class PredicateMatcher : public MatcherBase<T> {
+     std::function<bool(T const&)> m_predicate;
+     std::string m_description;
+ public:
+ 
+     PredicateMatcher(std::function<bool(T const&)> const& elem, std::string const& descr)
+         :m_predicate(std::move(elem)),
+         m_description(Detail::finalizeDescription(descr))
+     {}
+ 
+     bool match( T const& item ) const override {
+         return m_predicate(item);
+     }
+ 
+     std::string describe() const override {
+         return m_description;
+     }
+ };
+ 
+ } // namespace Generic
+ 
+     // The following functions create the actual matcher objects.
+     // The user has to explicitly specify type to the function, because
+     // inferring std::function<bool(T const&)> is hard (but possible) and
+     // requires a lot of TMP.
+     template<typename T>
+     Generic::PredicateMatcher<T> Predicate(std::function<bool(T const&)> const& predicate, std::string const& description = "") {
+         return Generic::PredicateMatcher<T>(predicate, description);
+     }
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ 
+ // end catch_matchers_generic.hpp
+ // start catch_matchers_string.h
+ 
+ #include <string>
+ 
+ namespace Catch {
+ namespace Matchers {
+ 
+     namespace StdString {
+ 
+         struct CasedString
+         {
+             CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity );
+             std::string adjustString( std::string const& str ) const;
+             std::string caseSensitivitySuffix() const;
+ 
+             CaseSensitive::Choice m_caseSensitivity;
+             std::string m_str;
+         };
+ 
+         struct StringMatcherBase : MatcherBase<std::string> {
+             StringMatcherBase( std::string const& operation, CasedString const& comparator );
+             std::string describe() const override;
+ 
+             CasedString m_comparator;
+             std::string m_operation;
+         };
+ 
+         struct EqualsMatcher : StringMatcherBase {
+             EqualsMatcher( CasedString const& comparator );
+             bool match( std::string const& source ) const override;
+         };
+         struct ContainsMatcher : StringMatcherBase {
+             ContainsMatcher( CasedString const& comparator );
+             bool match( std::string const& source ) const override;
+         };
+         struct StartsWithMatcher : StringMatcherBase {
+             StartsWithMatcher( CasedString const& comparator );
+             bool match( std::string const& source ) const override;
+         };
+         struct EndsWithMatcher : StringMatcherBase {
+             EndsWithMatcher( CasedString const& comparator );
+             bool match( std::string const& source ) const override;
+         };
+ 
+         struct RegexMatcher : MatcherBase<std::string> {
+             RegexMatcher( std::string regex, CaseSensitive::Choice caseSensitivity );
+             bool match( std::string const& matchee ) const override;
+             std::string describe() const override;
+ 
+         private:
+             std::string m_regex;
+             CaseSensitive::Choice m_caseSensitivity;
+         };
+ 
+     } // namespace StdString
+ 
+     // The following functions create the actual matcher objects.
+     // This allows the types to be inferred
+ 
+     StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+     StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+     StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+     StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+     StdString::RegexMatcher Matches( std::string const& regex, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ 
+ // end catch_matchers_string.h
+ // start catch_matchers_vector.h
+ 
+ #include <algorithm>
+ 
+ namespace Catch {
+ namespace Matchers {
+ 
+     namespace Vector {
+         template<typename T, typename Alloc>
+         struct ContainsElementMatcher : MatcherBase<std::vector<T, Alloc>> {
+ 
+             ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}
+ 
+             bool match(std::vector<T, Alloc> const &v) const override {
+                 for (auto const& el : v) {
+                     if (el == m_comparator) {
+                         return true;
+                     }
+                 }
+                 return false;
+             }
+ 
+             std::string describe() const override {
+                 return "Contains: " + ::Catch::Detail::stringify( m_comparator );
+             }
+ 
+             T const& m_comparator;
+         };
+ 
+         template<typename T, typename AllocComp, typename AllocMatch>
+         struct ContainsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
+ 
+             ContainsMatcher(std::vector<T, AllocComp> const &comparator) : m_comparator( comparator ) {}
+ 
+             bool match(std::vector<T, AllocMatch> const &v) const override {
+                 // !TBD: see note in EqualsMatcher
+                 if (m_comparator.size() > v.size())
+                     return false;
+                 for (auto const& comparator : m_comparator) {
+                     auto present = false;
+                     for (const auto& el : v) {
+                         if (el == comparator) {
+                             present = true;
+                             break;
+                         }
+                     }
+                     if (!present) {
+                         return false;
+                     }
+                 }
+                 return true;
+             }
+             std::string describe() const override {
+                 return "Contains: " + ::Catch::Detail::stringify( m_comparator );
+             }
+ 
+             std::vector<T, AllocComp> const& m_comparator;
+         };
+ 
+         template<typename T, typename AllocComp, typename AllocMatch>
+         struct EqualsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
+ 
+             EqualsMatcher(std::vector<T, AllocComp> const &comparator) : m_comparator( comparator ) {}
+ 
+             bool match(std::vector<T, AllocMatch> const &v) const override {
+                 // !TBD: This currently works if all elements can be compared using !=
+                 // - a more general approach would be via a compare template that defaults
+                 // to using !=. but could be specialised for, e.g. std::vector<T, Alloc> etc
+                 // - then just call that directly
+                 if (m_comparator.size() != v.size())
+                     return false;
+                 for (std::size_t i = 0; i < v.size(); ++i)
+                     if (m_comparator[i] != v[i])
+                         return false;
+                 return true;
+             }
+             std::string describe() const override {
+                 return "Equals: " + ::Catch::Detail::stringify( m_comparator );
+             }
+             std::vector<T, AllocComp> const& m_comparator;
+         };
+ 
+         template<typename T, typename AllocComp, typename AllocMatch>
+         struct ApproxMatcher : MatcherBase<std::vector<T, AllocMatch>> {
+ 
+             ApproxMatcher(std::vector<T, AllocComp> const& comparator) : m_comparator( comparator ) {}
+ 
+             bool match(std::vector<T, AllocMatch> const &v) const override {
+                 if (m_comparator.size() != v.size())
+                     return false;
+                 for (std::size_t i = 0; i < v.size(); ++i)
+                     if (m_comparator[i] != approx(v[i]))
+                         return false;
+                 return true;
+             }
+             std::string describe() const override {
+                 return "is approx: " + ::Catch::Detail::stringify( m_comparator );
+             }
+             template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+             ApproxMatcher& epsilon( T const& newEpsilon ) {
+                 approx.epsilon(newEpsilon);
+                 return *this;
+             }
+             template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+             ApproxMatcher& margin( T const& newMargin ) {
+                 approx.margin(newMargin);
+                 return *this;
+             }
+             template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+             ApproxMatcher& scale( T const& newScale ) {
+                 approx.scale(newScale);
+                 return *this;
+             }
+ 
+             std::vector<T, AllocComp> const& m_comparator;
+             mutable Catch::Detail::Approx approx = Catch::Detail::Approx::custom();
+         };
+ 
+         template<typename T, typename AllocComp, typename AllocMatch>
+         struct UnorderedEqualsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
+             UnorderedEqualsMatcher(std::vector<T, AllocComp> const& target) : m_target(target) {}
+             bool match(std::vector<T, AllocMatch> const& vec) const override {
+                 if (m_target.size() != vec.size()) {
+                     return false;
+                 }
+                 return std::is_permutation(m_target.begin(), m_target.end(), vec.begin());
+             }
+ 
+             std::string describe() const override {
+                 return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
+             }
+         private:
+             std::vector<T, AllocComp> const& m_target;
+         };
+ 
+     } // namespace Vector
+ 
+     // The following functions create the actual matcher objects.
+     // This allows the types to be inferred
+ 
+     template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
+     Vector::ContainsMatcher<T, AllocComp, AllocMatch> Contains( std::vector<T, AllocComp> const& comparator ) {
+         return Vector::ContainsMatcher<T, AllocComp, AllocMatch>( comparator );
+     }
+ 
+     template<typename T, typename Alloc = std::allocator<T>>
+     Vector::ContainsElementMatcher<T, Alloc> VectorContains( T const& comparator ) {
+         return Vector::ContainsElementMatcher<T, Alloc>( comparator );
+     }
+ 
+     template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
+     Vector::EqualsMatcher<T, AllocComp, AllocMatch> Equals( std::vector<T, AllocComp> const& comparator ) {
+         return Vector::EqualsMatcher<T, AllocComp, AllocMatch>( comparator );
+     }
+ 
+     template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
+     Vector::ApproxMatcher<T, AllocComp, AllocMatch> Approx( std::vector<T, AllocComp> const& comparator ) {
+         return Vector::ApproxMatcher<T, AllocComp, AllocMatch>( comparator );
+     }
+ 
+     template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
+     Vector::UnorderedEqualsMatcher<T, AllocComp, AllocMatch> UnorderedEquals(std::vector<T, AllocComp> const& target) {
+         return Vector::UnorderedEqualsMatcher<T, AllocComp, AllocMatch>( target );
+     }
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ 
+ // end catch_matchers_vector.h
+ namespace Catch {
+ 
+     template<typename ArgT, typename MatcherT>
+     class MatchExpr : public ITransientExpression {
+         ArgT const& m_arg;
+         MatcherT m_matcher;
+         StringRef m_matcherString;
+     public:
+         MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString )
+         :   ITransientExpression{ true, matcher.match( arg ) },
+             m_arg( arg ),
+             m_matcher( matcher ),
+             m_matcherString( matcherString )
+         {}
+ 
+         void streamReconstructedExpression( std::ostream &os ) const override {
+             auto matcherAsString = m_matcher.toString();
+             os << Catch::Detail::stringify( m_arg ) << ' ';
+             if( matcherAsString == Detail::unprintableString )
+                 os << m_matcherString;
+             else
+                 os << matcherAsString;
+         }
+     };
+ 
+     using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
+ 
+     void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  );
+ 
+     template<typename ArgT, typename MatcherT>
+     auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString  ) -> MatchExpr<ArgT, MatcherT> {
+         return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
+     }
+ 
+ } // namespace Catch
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+         INTERNAL_CATCH_TRY { \
+             catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher, #matcher##_catch_sr ) ); \
+         } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
+     do { \
+         Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+         if( catchAssertionHandler.allowThrows() ) \
+             try { \
+                 static_cast<void>(__VA_ARGS__ ); \
+                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
+             } \
+             catch( exceptionType const& ex ) { \
+                 catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher, #matcher##_catch_sr ) ); \
+             } \
+             catch( ... ) { \
+                 catchAssertionHandler.handleUnexpectedInflightException(); \
+             } \
+         else \
+             catchAssertionHandler.handleThrowingCallSkipped(); \
+         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+     } while( false )
+ 
+ // end catch_capture_matchers.h
+ #endif
+ // start catch_generators.hpp
+ 
+ // start catch_interfaces_generatortracker.h
+ 
+ 
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     namespace Generators {
+         class GeneratorUntypedBase {
+         public:
+             GeneratorUntypedBase() = default;
+             virtual ~GeneratorUntypedBase();
+             // Attempts to move the generator to the next element
+              //
+              // Returns true iff the move succeeded (and a valid element
+              // can be retrieved).
+             virtual bool next() = 0;
+         };
+         using GeneratorBasePtr = std::unique_ptr<GeneratorUntypedBase>;
+ 
+     } // namespace Generators
+ 
+     struct IGeneratorTracker {
+         virtual ~IGeneratorTracker();
+         virtual auto hasGenerator() const -> bool = 0;
+         virtual auto getGenerator() const -> Generators::GeneratorBasePtr const& = 0;
+         virtual void setGenerator( Generators::GeneratorBasePtr&& generator ) = 0;
+     };
+ 
+ } // namespace Catch
+ 
+ // end catch_interfaces_generatortracker.h
+ // start catch_enforce.h
+ 
+ #include <exception>
+ 
+ namespace Catch {
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+     template <typename Ex>
+     [[noreturn]]
+     void throw_exception(Ex const& e) {
+         throw e;
+     }
+ #else // ^^ Exceptions are enabled //  Exceptions are disabled vv
+     [[noreturn]]
+     void throw_exception(std::exception const& e);
+ #endif
+ 
+     [[noreturn]]
+     void throw_logic_error(std::string const& msg);
+     [[noreturn]]
+     void throw_domain_error(std::string const& msg);
+     [[noreturn]]
+     void throw_runtime_error(std::string const& msg);
+ 
+ } // namespace Catch;
+ 
+ #define CATCH_MAKE_MSG(...) \
+     (Catch::ReusableStringStream() << __VA_ARGS__).str()
+ 
+ #define CATCH_INTERNAL_ERROR(...) \
+     Catch::throw_logic_error(CATCH_MAKE_MSG( CATCH_INTERNAL_LINEINFO << ": Internal Catch2 error: " << __VA_ARGS__))
+ 
+ #define CATCH_ERROR(...) \
+     Catch::throw_domain_error(CATCH_MAKE_MSG( __VA_ARGS__ ))
+ 
+ #define CATCH_RUNTIME_ERROR(...) \
+     Catch::throw_runtime_error(CATCH_MAKE_MSG( __VA_ARGS__ ))
+ 
+ #define CATCH_ENFORCE( condition, ... ) \
+     do{ if( !(condition) ) CATCH_ERROR( __VA_ARGS__ ); } while(false)
+ 
+ // end catch_enforce.h
+ #include <memory>
+ #include <vector>
+ #include <cassert>
+ 
+ #include <utility>
+ #include <exception>
+ 
+ namespace Catch {
+ 
+ class GeneratorException : public std::exception {
+     const char* const m_msg = "";
+ 
+ public:
+     GeneratorException(const char* msg):
+         m_msg(msg)
+     {}
+ 
+     const char* what() const noexcept override final;
+ };
+ 
+ namespace Generators {
+ 
+     // !TBD move this into its own location?
+     namespace pf{
+         template<typename T, typename... Args>
+         std::unique_ptr<T> make_unique( Args&&... args ) {
+             return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+         }
+     }
+ 
+     template<typename T>
+     struct IGenerator : GeneratorUntypedBase {
+         virtual ~IGenerator() = default;
+ 
+         // Returns the current element of the generator
+         //
+         // \Precondition The generator is either freshly constructed,
+         // or the last call to `next()` returned true
+         virtual T const& get() const = 0;
+         using type = T;
+     };
+ 
+     template<typename T>
+     class SingleValueGenerator final : public IGenerator<T> {
+         T m_value;
+     public:
+         SingleValueGenerator(T&& value) : m_value(std::move(value)) {}
+ 
+         T const& get() const override {
+             return m_value;
+         }
+         bool next() override {
+             return false;
+         }
+     };
+ 
+     template<typename T>
+     class FixedValuesGenerator final : public IGenerator<T> {
+         static_assert(!std::is_same<T, bool>::value,
+             "FixedValuesGenerator does not support bools because of std::vector<bool>"
+             "specialization, use SingleValue Generator instead.");
+         std::vector<T> m_values;
+         size_t m_idx = 0;
+     public:
+         FixedValuesGenerator( std::initializer_list<T> values ) : m_values( values ) {}
+ 
+         T const& get() const override {
+             return m_values[m_idx];
+         }
+         bool next() override {
+             ++m_idx;
+             return m_idx < m_values.size();
+         }
+     };
+ 
+     template <typename T>
+     class GeneratorWrapper final {
+         std::unique_ptr<IGenerator<T>> m_generator;
+     public:
+         GeneratorWrapper(std::unique_ptr<IGenerator<T>> generator):
+             m_generator(std::move(generator))
+         {}
+         T const& get() const {
+             return m_generator->get();
+         }
+         bool next() {
+             return m_generator->next();
+         }
+     };
+ 
+     template <typename T>
+     GeneratorWrapper<T> value(T&& value) {
+         return GeneratorWrapper<T>(pf::make_unique<SingleValueGenerator<T>>(std::forward<T>(value)));
+     }
+     template <typename T>
+     GeneratorWrapper<T> values(std::initializer_list<T> values) {
+         return GeneratorWrapper<T>(pf::make_unique<FixedValuesGenerator<T>>(values));
+     }
+ 
+     template<typename T>
+     class Generators : public IGenerator<T> {
+         std::vector<GeneratorWrapper<T>> m_generators;
+         size_t m_current = 0;
+ 
+         void populate(GeneratorWrapper<T>&& generator) {
+             m_generators.emplace_back(std::move(generator));
+         }
+         void populate(T&& val) {
+             m_generators.emplace_back(value(std::forward<T>(val)));
+         }
+         template<typename U>
+         void populate(U&& val) {
+             populate(T(std::forward<U>(val)));
+         }
+         template<typename U, typename... Gs>
+         void populate(U&& valueOrGenerator, Gs &&... moreGenerators) {
+             populate(std::forward<U>(valueOrGenerator));
+             populate(std::forward<Gs>(moreGenerators)...);
+         }
+ 
+     public:
+         template <typename... Gs>
+         Generators(Gs &&... moreGenerators) {
+             m_generators.reserve(sizeof...(Gs));
+             populate(std::forward<Gs>(moreGenerators)...);
+         }
+ 
+         T const& get() const override {
+             return m_generators[m_current].get();
+         }
+ 
+         bool next() override {
+             if (m_current >= m_generators.size()) {
+                 return false;
+             }
+             const bool current_status = m_generators[m_current].next();
+             if (!current_status) {
+                 ++m_current;
+             }
+             return m_current < m_generators.size();
+         }
+     };
+ 
+     template<typename... Ts>
+     GeneratorWrapper<std::tuple<Ts...>> table( std::initializer_list<std::tuple<typename std::decay<Ts>::type...>> tuples ) {
+         return values<std::tuple<Ts...>>( tuples );
+     }
+ 
+     // Tag type to signal that a generator sequence should convert arguments to a specific type
+     template <typename T>
+     struct as {};
+ 
+     template<typename T, typename... Gs>
+     auto makeGenerators( GeneratorWrapper<T>&& generator, Gs &&... moreGenerators ) -> Generators<T> {
+         return Generators<T>(std::move(generator), std::forward<Gs>(moreGenerators)...);
+     }
+     template<typename T>
+     auto makeGenerators( GeneratorWrapper<T>&& generator ) -> Generators<T> {
+         return Generators<T>(std::move(generator));
+     }
+     template<typename T, typename... Gs>
+     auto makeGenerators( T&& val, Gs &&... moreGenerators ) -> Generators<T> {
+         return makeGenerators( value( std::forward<T>( val ) ), std::forward<Gs>( moreGenerators )... );
+     }
+     template<typename T, typename U, typename... Gs>
+     auto makeGenerators( as<T>, U&& val, Gs &&... moreGenerators ) -> Generators<T> {
+         return makeGenerators( value( T( std::forward<U>( val ) ) ), std::forward<Gs>( moreGenerators )... );
+     }
+ 
+     auto acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker&;
+ 
+     template<typename L>
+     // Note: The type after -> is weird, because VS2015 cannot parse
+     //       the expression used in the typedef inside, when it is in
+     //       return type. Yeah.
+     auto generate( StringRef generatorName, SourceLineInfo const& lineInfo, L const& generatorExpression ) -> decltype(std::declval<decltype(generatorExpression())>().get()) {
+         using UnderlyingType = typename decltype(generatorExpression())::type;
+ 
+         IGeneratorTracker& tracker = acquireGeneratorTracker( generatorName, lineInfo );
+         if (!tracker.hasGenerator()) {
+             tracker.setGenerator(pf::make_unique<Generators<UnderlyingType>>(generatorExpression()));
+         }
+ 
+         auto const& generator = static_cast<IGenerator<UnderlyingType> const&>( *tracker.getGenerator() );
+         return generator.get();
+     }
+ 
+ } // namespace Generators
+ } // namespace Catch
+ 
+ #define GENERATE( ... ) \
+     Catch::Generators::generate( INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
+                                  CATCH_INTERNAL_LINEINFO, \
+                                  [ ]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)
+ #define GENERATE_COPY( ... ) \
+     Catch::Generators::generate( INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
+                                  CATCH_INTERNAL_LINEINFO, \
+                                  [=]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)
+ #define GENERATE_REF( ... ) \
+     Catch::Generators::generate( INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
+                                  CATCH_INTERNAL_LINEINFO, \
+                                  [&]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)
+ 
+ // end catch_generators.hpp
+ // start catch_generators_generic.hpp
+ 
+ namespace Catch {
+ namespace Generators {
+ 
+     template <typename T>
+     class TakeGenerator : public IGenerator<T> {
+         GeneratorWrapper<T> m_generator;
+         size_t m_returned = 0;
+         size_t m_target;
+     public:
+         TakeGenerator(size_t target, GeneratorWrapper<T>&& generator):
+             m_generator(std::move(generator)),
+             m_target(target)
+         {
+             assert(target != 0 && "Empty generators are not allowed");
+         }
+         T const& get() const override {
+             return m_generator.get();
+         }
+         bool next() override {
+             ++m_returned;
+             if (m_returned >= m_target) {
+                 return false;
+             }
+ 
+             const auto success = m_generator.next();
+             // If the underlying generator does not contain enough values
+             // then we cut short as well
+             if (!success) {
+                 m_returned = m_target;
+             }
+             return success;
+         }
+     };
+ 
+     template <typename T>
+     GeneratorWrapper<T> take(size_t target, GeneratorWrapper<T>&& generator) {
+         return GeneratorWrapper<T>(pf::make_unique<TakeGenerator<T>>(target, std::move(generator)));
+     }
+ 
+     template <typename T, typename Predicate>
+     class FilterGenerator : public IGenerator<T> {
+         GeneratorWrapper<T> m_generator;
+         Predicate m_predicate;
+     public:
+         template <typename P = Predicate>
+         FilterGenerator(P&& pred, GeneratorWrapper<T>&& generator):
+             m_generator(std::move(generator)),
+             m_predicate(std::forward<P>(pred))
+         {
+             if (!m_predicate(m_generator.get())) {
+                 // It might happen that there are no values that pass the
+                 // filter. In that case we throw an exception.
+                 auto has_initial_value = nextImpl();
+                 if (!has_initial_value) {
+                     Catch::throw_exception(GeneratorException("No valid value found in filtered generator"));
+                 }
+             }
+         }
+ 
+         T const& get() const override {
+             return m_generator.get();
+         }
+ 
+         bool next() override {
+             return nextImpl();
+         }
+ 
+     private:
+         bool nextImpl() {
+             bool success = m_generator.next();
+             if (!success) {
+                 return false;
+             }
+             while (!m_predicate(m_generator.get()) && (success = m_generator.next()) == true);
+             return success;
+         }
+     };
+ 
+     template <typename T, typename Predicate>
+     GeneratorWrapper<T> filter(Predicate&& pred, GeneratorWrapper<T>&& generator) {
+         return GeneratorWrapper<T>(std::unique_ptr<IGenerator<T>>(pf::make_unique<FilterGenerator<T, Predicate>>(std::forward<Predicate>(pred), std::move(generator))));
+     }
+ 
+     template <typename T>
+     class RepeatGenerator : public IGenerator<T> {
+         static_assert(!std::is_same<T, bool>::value,
+             "RepeatGenerator currently does not support bools"
+             "because of std::vector<bool> specialization");
+         GeneratorWrapper<T> m_generator;
+         mutable std::vector<T> m_returned;
+         size_t m_target_repeats;
+         size_t m_current_repeat = 0;
+         size_t m_repeat_index = 0;
+     public:
+         RepeatGenerator(size_t repeats, GeneratorWrapper<T>&& generator):
+             m_generator(std::move(generator)),
+             m_target_repeats(repeats)
+         {
+             assert(m_target_repeats > 0 && "Repeat generator must repeat at least once");
+         }
+ 
+         T const& get() const override {
+             if (m_current_repeat == 0) {
+                 m_returned.push_back(m_generator.get());
+                 return m_returned.back();
+             }
+             return m_returned[m_repeat_index];
+         }
+ 
+         bool next() override {
+             // There are 2 basic cases:
+             // 1) We are still reading the generator
+             // 2) We are reading our own cache
+ 
+             // In the first case, we need to poke the underlying generator.
+             // If it happily moves, we are left in that state, otherwise it is time to start reading from our cache
+             if (m_current_repeat == 0) {
+                 const auto success = m_generator.next();
+                 if (!success) {
+                     ++m_current_repeat;
+                 }
+                 return m_current_repeat < m_target_repeats;
+             }
+ 
+             // In the second case, we need to move indices forward and check that we haven't run up against the end
+             ++m_repeat_index;
+             if (m_repeat_index == m_returned.size()) {
+                 m_repeat_index = 0;
+                 ++m_current_repeat;
+             }
+             return m_current_repeat < m_target_repeats;
+         }
+     };
+ 
+     template <typename T>
+     GeneratorWrapper<T> repeat(size_t repeats, GeneratorWrapper<T>&& generator) {
+         return GeneratorWrapper<T>(pf::make_unique<RepeatGenerator<T>>(repeats, std::move(generator)));
+     }
+ 
+     template <typename T, typename U, typename Func>
+     class MapGenerator : public IGenerator<T> {
+         // TBD: provide static assert for mapping function, for friendly error message
+         GeneratorWrapper<U> m_generator;
+         Func m_function;
+         // To avoid returning dangling reference, we have to save the values
+         T m_cache;
+     public:
+         template <typename F2 = Func>
+         MapGenerator(F2&& function, GeneratorWrapper<U>&& generator) :
+             m_generator(std::move(generator)),
+             m_function(std::forward<F2>(function)),
+             m_cache(m_function(m_generator.get()))
+         {}
+ 
+         T const& get() const override {
+             return m_cache;
+         }
+         bool next() override {
+             const auto success = m_generator.next();
+             if (success) {
+                 m_cache = m_function(m_generator.get());
+             }
+             return success;
+         }
+     };
+ 
+     template <typename Func, typename U, typename T = FunctionReturnType<Func, U>>
+     GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
+         return GeneratorWrapper<T>(
+             pf::make_unique<MapGenerator<T, U, Func>>(std::forward<Func>(function), std::move(generator))
+         );
+     }
+ 
+     template <typename T, typename U, typename Func>
+     GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
+         return GeneratorWrapper<T>(
+             pf::make_unique<MapGenerator<T, U, Func>>(std::forward<Func>(function), std::move(generator))
+         );
+     }
+ 
+     template <typename T>
+     class ChunkGenerator final : public IGenerator<std::vector<T>> {
+         std::vector<T> m_chunk;
+         size_t m_chunk_size;
+         GeneratorWrapper<T> m_generator;
+         bool m_used_up = false;
+     public:
+         ChunkGenerator(size_t size, GeneratorWrapper<T> generator) :
+             m_chunk_size(size), m_generator(std::move(generator))
+         {
+             m_chunk.reserve(m_chunk_size);
+             if (m_chunk_size != 0) {
+                 m_chunk.push_back(m_generator.get());
+                 for (size_t i = 1; i < m_chunk_size; ++i) {
+                     if (!m_generator.next()) {
+                         Catch::throw_exception(GeneratorException("Not enough values to initialize the first chunk"));
+                     }
+                     m_chunk.push_back(m_generator.get());
+                 }
+             }
+         }
+         std::vector<T> const& get() const override {
+             return m_chunk;
+         }
+         bool next() override {
+             m_chunk.clear();
+             for (size_t idx = 0; idx < m_chunk_size; ++idx) {
+                 if (!m_generator.next()) {
+                     return false;
+                 }
+                 m_chunk.push_back(m_generator.get());
+             }
+             return true;
+         }
+     };
+ 
+     template <typename T>
+     GeneratorWrapper<std::vector<T>> chunk(size_t size, GeneratorWrapper<T>&& generator) {
+         return GeneratorWrapper<std::vector<T>>(
+             pf::make_unique<ChunkGenerator<T>>(size, std::move(generator))
+         );
+     }
+ 
+ } // namespace Generators
+ } // namespace Catch
+ 
+ // end catch_generators_generic.hpp
+ // start catch_generators_specific.hpp
+ 
+ // start catch_context.h
+ 
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     struct IResultCapture;
+     struct IRunner;
+     struct IConfig;
+     struct IMutableContext;
+ 
+     using IConfigPtr = std::shared_ptr<IConfig const>;
+ 
+     struct IContext
+     {
+         virtual ~IContext();
+ 
+         virtual IResultCapture* getResultCapture() = 0;
+         virtual IRunner* getRunner() = 0;
+         virtual IConfigPtr const& getConfig() const = 0;
+     };
+ 
+     struct IMutableContext : IContext
+     {
+         virtual ~IMutableContext();
+         virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
+         virtual void setRunner( IRunner* runner ) = 0;
+         virtual void setConfig( IConfigPtr const& config ) = 0;
+ 
+     private:
+         static IMutableContext *currentContext;
+         friend IMutableContext& getCurrentMutableContext();
+         friend void cleanUpContext();
+         static void createContext();
+     };
+ 
+     inline IMutableContext& getCurrentMutableContext()
+     {
+         if( !IMutableContext::currentContext )
+             IMutableContext::createContext();
+         // NOLINTNEXTLINE(clang-analyzer-core.uninitialized.UndefReturn)
+         return *IMutableContext::currentContext;
+     }
+ 
+     inline IContext& getCurrentContext()
+     {
+         return getCurrentMutableContext();
+     }
+ 
+     void cleanUpContext();
+ 
+     class SimplePcg32;
+     SimplePcg32& rng();
+ }
+ 
+ // end catch_context.h
+ // start catch_interfaces_config.h
+ 
+ // start catch_option.hpp
+ 
+ namespace Catch {
+ 
+     // An optional type
+     template<typename T>
+     class Option {
+     public:
+         Option() : nullableValue( nullptr ) {}
+         Option( T const& _value )
+         : nullableValue( new( storage ) T( _value ) )
+         {}
+         Option( Option const& _other )
+         : nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
+         {}
+ 
+         ~Option() {
+             reset();
+         }
+ 
+         Option& operator= ( Option const& _other ) {
+             if( &_other != this ) {
+                 reset();
+                 if( _other )
+                     nullableValue = new( storage ) T( *_other );
+             }
+             return *this;
+         }
+         Option& operator = ( T const& _value ) {
+             reset();
+             nullableValue = new( storage ) T( _value );
+             return *this;
+         }
+ 
+         void reset() {
+             if( nullableValue )
+                 nullableValue->~T();
+             nullableValue = nullptr;
+         }
+ 
+         T& operator*() { return *nullableValue; }
+         T const& operator*() const { return *nullableValue; }
+         T* operator->() { return nullableValue; }
+         const T* operator->() const { return nullableValue; }
+ 
+         T valueOr( T const& defaultValue ) const {
+             return nullableValue ? *nullableValue : defaultValue;
+         }
+ 
+         bool some() const { return nullableValue != nullptr; }
+         bool none() const { return nullableValue == nullptr; }
+ 
+         bool operator !() const { return nullableValue == nullptr; }
+         explicit operator bool() const {
+             return some();
+         }
+ 
+     private:
+         T *nullableValue;
+         alignas(alignof(T)) char storage[sizeof(T)];
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_option.hpp
+ #include <chrono>
+ #include <iosfwd>
+ #include <string>
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     enum class Verbosity {
+         Quiet = 0,
+         Normal,
+         High
+     };
+ 
+     struct WarnAbout { enum What {
+         Nothing = 0x00,
+         NoAssertions = 0x01,
+         NoTests = 0x02
+     }; };
+ 
+     struct ShowDurations { enum OrNot {
+         DefaultForReporter,
+         Always,
+         Never
+     }; };
+     struct RunTests { enum InWhatOrder {
+         InDeclarationOrder,
+         InLexicographicalOrder,
+         InRandomOrder
+     }; };
+     struct UseColour { enum YesOrNo {
+         Auto,
+         Yes,
+         No
+     }; };
+     struct WaitForKeypress { enum When {
+         Never,
+         BeforeStart = 1,
+         BeforeExit = 2,
+         BeforeStartAndExit = BeforeStart | BeforeExit
+     }; };
+ 
+     class TestSpec;
+ 
+     struct IConfig : NonCopyable {
+ 
+         virtual ~IConfig();
+ 
+         virtual bool allowThrows() const = 0;
+         virtual std::ostream& stream() const = 0;
+         virtual std::string name() const = 0;
+         virtual bool includeSuccessfulResults() const = 0;
+         virtual bool shouldDebugBreak() const = 0;
+         virtual bool warnAboutMissingAssertions() const = 0;
+         virtual bool warnAboutNoTests() const = 0;
+         virtual int abortAfter() const = 0;
+         virtual bool showInvisibles() const = 0;
+         virtual ShowDurations::OrNot showDurations() const = 0;
+         virtual double minDuration() const = 0;
+         virtual TestSpec const& testSpec() const = 0;
+         virtual bool hasTestFilters() const = 0;
+         virtual std::vector<std::string> const& getTestsOrTags() const = 0;
+         virtual RunTests::InWhatOrder runOrder() const = 0;
+         virtual unsigned int rngSeed() const = 0;
+         virtual UseColour::YesOrNo useColour() const = 0;
+         virtual std::vector<std::string> const& getSectionsToRun() const = 0;
+         virtual Verbosity verbosity() const = 0;
+ 
+         virtual bool benchmarkNoAnalysis() const = 0;
+         virtual int benchmarkSamples() const = 0;
+         virtual double benchmarkConfidenceInterval() const = 0;
+         virtual unsigned int benchmarkResamples() const = 0;
+         virtual std::chrono::milliseconds benchmarkWarmupTime() const = 0;
+     };
+ 
+     using IConfigPtr = std::shared_ptr<IConfig const>;
+ }
+ 
+ // end catch_interfaces_config.h
+ // start catch_random_number_generator.h
+ 
+ #include <cstdint>
+ 
+ namespace Catch {
+ 
+     // This is a simple implementation of C++11 Uniform Random Number
+     // Generator. It does not provide all operators, because Catch2
+     // does not use it, but it should behave as expected inside stdlib's
+     // distributions.
+     // The implementation is based on the PCG family (http://pcg-random.org)
+     class SimplePcg32 {
+         using state_type = std::uint64_t;
+     public:
+         using result_type = std::uint32_t;
+         static constexpr result_type (min)() {
+             return 0;
+         }
+         static constexpr result_type (max)() {
+             return static_cast<result_type>(-1);
+         }
+ 
+         // Provide some default initial state for the default constructor
+         SimplePcg32():SimplePcg32(0xed743cc4U) {}
+ 
+         explicit SimplePcg32(result_type seed_);
+ 
+         void seed(result_type seed_);
+         void discard(uint64_t skip);
+ 
+         result_type operator()();
+ 
+     private:
+         friend bool operator==(SimplePcg32 const& lhs, SimplePcg32 const& rhs);
+         friend bool operator!=(SimplePcg32 const& lhs, SimplePcg32 const& rhs);
+ 
+         // In theory we also need operator<< and operator>>
+         // In practice we do not use them, so we will skip them for now
+ 
+         std::uint64_t m_state;
+         // This part of the state determines which "stream" of the numbers
+         // is chosen -- we take it as a constant for Catch2, so we only
+         // need to deal with seeding the main state.
+         // Picked by reading 8 bytes from `/dev/random` :-)
+         static const std::uint64_t s_inc = (0x13ed0cc53f939476ULL << 1ULL) | 1ULL;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_random_number_generator.h
+ #include <random>
+ 
+ namespace Catch {
+ namespace Generators {
+ 
+ template <typename Float>
+ class RandomFloatingGenerator final : public IGenerator<Float> {
+     Catch::SimplePcg32& m_rng;
+     std::uniform_real_distribution<Float> m_dist;
+     Float m_current_number;
+ public:
+ 
+     RandomFloatingGenerator(Float a, Float b):
+         m_rng(rng()),
+         m_dist(a, b) {
+         static_cast<void>(next());
+     }
+ 
+     Float const& get() const override {
+         return m_current_number;
+     }
+     bool next() override {
+         m_current_number = m_dist(m_rng);
+         return true;
+     }
+ };
+ 
+ template <typename Integer>
+ class RandomIntegerGenerator final : public IGenerator<Integer> {
+     Catch::SimplePcg32& m_rng;
+     std::uniform_int_distribution<Integer> m_dist;
+     Integer m_current_number;
+ public:
+ 
+     RandomIntegerGenerator(Integer a, Integer b):
+         m_rng(rng()),
+         m_dist(a, b) {
+         static_cast<void>(next());
+     }
+ 
+     Integer const& get() const override {
+         return m_current_number;
+     }
+     bool next() override {
+         m_current_number = m_dist(m_rng);
+         return true;
+     }
+ };
+ 
+ // TODO: Ideally this would be also constrained against the various char types,
+ //       but I don't expect users to run into that in practice.
+ template <typename T>
+ typename std::enable_if<std::is_integral<T>::value && !std::is_same<T, bool>::value,
+ GeneratorWrapper<T>>::type
+ random(T a, T b) {
+     return GeneratorWrapper<T>(
+         pf::make_unique<RandomIntegerGenerator<T>>(a, b)
+     );
+ }
+ 
+ template <typename T>
+ typename std::enable_if<std::is_floating_point<T>::value,
+ GeneratorWrapper<T>>::type
+ random(T a, T b) {
+     return GeneratorWrapper<T>(
+         pf::make_unique<RandomFloatingGenerator<T>>(a, b)
+     );
+ }
+ 
+ template <typename T>
+ class RangeGenerator final : public IGenerator<T> {
+     T m_current;
+     T m_end;
+     T m_step;
+     bool m_positive;
+ 
+ public:
+     RangeGenerator(T const& start, T const& end, T const& step):
+         m_current(start),
+         m_end(end),
+         m_step(step),
+         m_positive(m_step > T(0))
+     {
+         assert(m_current != m_end && "Range start and end cannot be equal");
+         assert(m_step != T(0) && "Step size cannot be zero");
+         assert(((m_positive && m_current <= m_end) || (!m_positive && m_current >= m_end)) && "Step moves away from end");
+     }
+ 
+     RangeGenerator(T const& start, T const& end):
+         RangeGenerator(start, end, (start < end) ? T(1) : T(-1))
+     {}
+ 
+     T const& get() const override {
+         return m_current;
+     }
+ 
+     bool next() override {
+         m_current += m_step;
+         return (m_positive) ? (m_current < m_end) : (m_current > m_end);
+     }
+ };
+ 
+ template <typename T>
+ GeneratorWrapper<T> range(T const& start, T const& end, T const& step) {
+     static_assert(std::is_arithmetic<T>::value && !std::is_same<T, bool>::value, "Type must be numeric");
+     return GeneratorWrapper<T>(pf::make_unique<RangeGenerator<T>>(start, end, step));
+ }
+ 
+ template <typename T>
+ GeneratorWrapper<T> range(T const& start, T const& end) {
+     static_assert(std::is_integral<T>::value && !std::is_same<T, bool>::value, "Type must be an integer");
+     return GeneratorWrapper<T>(pf::make_unique<RangeGenerator<T>>(start, end));
+ }
+ 
+ template <typename T>
+ class IteratorGenerator final : public IGenerator<T> {
+     static_assert(!std::is_same<T, bool>::value,
+         "IteratorGenerator currently does not support bools"
+         "because of std::vector<bool> specialization");
+ 
+     std::vector<T> m_elems;
+     size_t m_current = 0;
+ public:
+     template <typename InputIterator, typename InputSentinel>
+     IteratorGenerator(InputIterator first, InputSentinel last):m_elems(first, last) {
+         if (m_elems.empty()) {
+             Catch::throw_exception(GeneratorException("IteratorGenerator received no valid values"));
+         }
+     }
+ 
+     T const& get() const override {
+         return m_elems[m_current];
+     }
+ 
+     bool next() override {
+         ++m_current;
+         return m_current != m_elems.size();
+     }
+ };
+ 
+ template <typename InputIterator,
+           typename InputSentinel,
+           typename ResultType = typename std::iterator_traits<InputIterator>::value_type>
+ GeneratorWrapper<ResultType> from_range(InputIterator from, InputSentinel to) {
+     return GeneratorWrapper<ResultType>(pf::make_unique<IteratorGenerator<ResultType>>(from, to));
+ }
+ 
+ template <typename Container,
+           typename ResultType = typename Container::value_type>
+ GeneratorWrapper<ResultType> from_range(Container const& cnt) {
+     return GeneratorWrapper<ResultType>(pf::make_unique<IteratorGenerator<ResultType>>(cnt.begin(), cnt.end()));
+ }
+ 
+ } // namespace Generators
+ } // namespace Catch
+ 
+ // end catch_generators_specific.hpp
+ 
+ // These files are included here so the single_include script doesn't put them
+ // in the conditionally compiled sections
+ // start catch_test_case_info.h
+ 
+ #include <string>
+ #include <vector>
+ #include <memory>
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wpadded"
+ #endif
+ 
+ namespace Catch {
+ 
+     struct ITestInvoker;
+ 
+     struct TestCaseInfo {
+         enum SpecialProperties{
+             None = 0,
+             IsHidden = 1 << 1,
+             ShouldFail = 1 << 2,
+             MayFail = 1 << 3,
+             Throws = 1 << 4,
+             NonPortable = 1 << 5,
+             Benchmark = 1 << 6
+         };
+ 
+         TestCaseInfo(   std::string const& _name,
+                         std::string const& _className,
+                         std::string const& _description,
+                         std::vector<std::string> const& _tags,
+                         SourceLineInfo const& _lineInfo );
+ 
+         friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );
+ 
+         bool isHidden() const;
+         bool throws() const;
+         bool okToFail() const;
+         bool expectedToFail() const;
+ 
+         std::string tagsAsString() const;
+ 
+         std::string name;
+         std::string className;
+         std::string description;
+         std::vector<std::string> tags;
+         std::vector<std::string> lcaseTags;
+         SourceLineInfo lineInfo;
+         SpecialProperties properties;
+     };
+ 
+     class TestCase : public TestCaseInfo {
+     public:
+ 
+         TestCase( ITestInvoker* testCase, TestCaseInfo&& info );
+ 
+         TestCase withName( std::string const& _newName ) const;
+ 
+         void invoke() const;
+ 
+         TestCaseInfo const& getTestCaseInfo() const;
+ 
+         bool operator == ( TestCase const& other ) const;
+         bool operator < ( TestCase const& other ) const;
+ 
+     private:
+         std::shared_ptr<ITestInvoker> test;
+     };
+ 
+     TestCase makeTestCase(  ITestInvoker* testCase,
+                             std::string const& className,
+                             NameAndTags const& nameAndTags,
+                             SourceLineInfo const& lineInfo );
+ }
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_test_case_info.h
+ // start catch_interfaces_runner.h
+ 
+ namespace Catch {
+ 
+     struct IRunner {
+         virtual ~IRunner();
+         virtual bool aborting() const = 0;
+     };
+ }
+ 
+ // end catch_interfaces_runner.h
+ 
+ #ifdef __OBJC__
+ // start catch_objc.hpp
+ 
+ #import <objc/runtime.h>
+ 
+ #include <string>
+ 
+ // NB. Any general catch headers included here must be included
+ // in catch.hpp first to make sure they are included by the single
+ // header for non obj-usage
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ // This protocol is really only here for (self) documenting purposes, since
+ // all its methods are optional.
+ @protocol OcFixture
+ 
+ @optional
+ 
+ -(void) setUp;
+ -(void) tearDown;
+ 
+ @end
+ 
+ namespace Catch {
+ 
+     class OcMethod : public ITestInvoker {
+ 
+     public:
+         OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}
+ 
+         virtual void invoke() const {
+             id obj = [[m_cls alloc] init];
+ 
+             performOptionalSelector( obj, @selector(setUp)  );
+             performOptionalSelector( obj, m_sel );
+             performOptionalSelector( obj, @selector(tearDown)  );
+ 
+             arcSafeRelease( obj );
+         }
+     private:
+         virtual ~OcMethod() {}
+ 
+         Class m_cls;
+         SEL m_sel;
+     };
+ 
+     namespace Detail{
+ 
+         inline std::string getAnnotation(   Class cls,
+                                             std::string const& annotationName,
+                                             std::string const& testCaseName ) {
+             NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
+             SEL sel = NSSelectorFromString( selStr );
+             arcSafeRelease( selStr );
+             id value = performOptionalSelector( cls, sel );
+             if( value )
+                 return [(NSString*)value UTF8String];
+             return "";
+         }
+     }
+ 
+     inline std::size_t registerTestMethods() {
+         std::size_t noTestMethods = 0;
+         int noClasses = objc_getClassList( nullptr, 0 );
+ 
+         Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
+         objc_getClassList( classes, noClasses );
+ 
+         for( int c = 0; c < noClasses; c++ ) {
+             Class cls = classes[c];
+             {
+                 u_int count;
+                 Method* methods = class_copyMethodList( cls, &count );
+                 for( u_int m = 0; m < count ; m++ ) {
+                     SEL selector = method_getName(methods[m]);
+                     std::string methodName = sel_getName(selector);
+                     if( startsWith( methodName, "Catch_TestCase_" ) ) {
+                         std::string testCaseName = methodName.substr( 15 );
+                         std::string name = Detail::getAnnotation( cls, "Name", testCaseName );
+                         std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
+                         const char* className = class_getName( cls );
+ 
+                         getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, NameAndTags( name.c_str(), desc.c_str() ), SourceLineInfo("",0) ) );
+                         noTestMethods++;
+                     }
+                 }
+                 free(methods);
+             }
+         }
+         return noTestMethods;
+     }
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ 
+     namespace Matchers {
+         namespace Impl {
+         namespace NSStringMatchers {
+ 
+             struct StringHolder : MatcherBase<NSString*>{
+                 StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
+                 StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
+                 StringHolder() {
+                     arcSafeRelease( m_substr );
+                 }
+ 
+                 bool match( NSString* str ) const override {
+                     return false;
+                 }
+ 
+                 NSString* CATCH_ARC_STRONG m_substr;
+             };
+ 
+             struct Equals : StringHolder {
+                 Equals( NSString* substr ) : StringHolder( substr ){}
+ 
+                 bool match( NSString* str ) const override {
+                     return  (str != nil || m_substr == nil ) &&
+                             [str isEqualToString:m_substr];
+                 }
+ 
+                 std::string describe() const override {
+                     return "equals string: " + Catch::Detail::stringify( m_substr );
+                 }
+             };
+ 
+             struct Contains : StringHolder {
+                 Contains( NSString* substr ) : StringHolder( substr ){}
+ 
+                 bool match( NSString* str ) const override {
+                     return  (str != nil || m_substr == nil ) &&
+                             [str rangeOfString:m_substr].location != NSNotFound;
+                 }
+ 
+                 std::string describe() const override {
+                     return "contains string: " + Catch::Detail::stringify( m_substr );
+                 }
+             };
+ 
+             struct StartsWith : StringHolder {
+                 StartsWith( NSString* substr ) : StringHolder( substr ){}
+ 
+                 bool match( NSString* str ) const override {
+                     return  (str != nil || m_substr == nil ) &&
+                             [str rangeOfString:m_substr].location == 0;
+                 }
+ 
+                 std::string describe() const override {
+                     return "starts with: " + Catch::Detail::stringify( m_substr );
+                 }
+             };
+             struct EndsWith : StringHolder {
+                 EndsWith( NSString* substr ) : StringHolder( substr ){}
+ 
+                 bool match( NSString* str ) const override {
+                     return  (str != nil || m_substr == nil ) &&
+                             [str rangeOfString:m_substr].location == [str length] - [m_substr length];
+                 }
+ 
+                 std::string describe() const override {
+                     return "ends with: " + Catch::Detail::stringify( m_substr );
+                 }
+             };
+ 
+         } // namespace NSStringMatchers
+         } // namespace Impl
+ 
+         inline Impl::NSStringMatchers::Equals
+             Equals( NSString* substr ){ return Impl::NSStringMatchers::Equals( substr ); }
+ 
+         inline Impl::NSStringMatchers::Contains
+             Contains( NSString* substr ){ return Impl::NSStringMatchers::Contains( substr ); }
+ 
+         inline Impl::NSStringMatchers::StartsWith
+             StartsWith( NSString* substr ){ return Impl::NSStringMatchers::StartsWith( substr ); }
+ 
+         inline Impl::NSStringMatchers::EndsWith
+             EndsWith( NSString* substr ){ return Impl::NSStringMatchers::EndsWith( substr ); }
+ 
+     } // namespace Matchers
+ 
+     using namespace Matchers;
+ 
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ 
+ } // namespace Catch
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+ #define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
+ #define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
+ +(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
+ { \
+ return @ name; \
+ } \
+ +(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
+ { \
+ return @ desc; \
+ } \
+ -(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )
+ 
+ #define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )
+ 
+ // end catch_objc.hpp
+ #endif
+ 
+ // Benchmarking needs the externally-facing parts of reporters to work
+ #if defined(CATCH_CONFIG_EXTERNAL_INTERFACES) || defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ // start catch_external_interfaces.h
+ 
+ // start catch_reporter_bases.hpp
+ 
+ // start catch_interfaces_reporter.h
+ 
+ // start catch_config.hpp
+ 
+ // start catch_test_spec_parser.h
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wpadded"
+ #endif
+ 
+ // start catch_test_spec.h
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wpadded"
+ #endif
+ 
+ // start catch_wildcard_pattern.h
+ 
+ namespace Catch
+ {
+     class WildcardPattern {
+         enum WildcardPosition {
+             NoWildcard = 0,
+             WildcardAtStart = 1,
+             WildcardAtEnd = 2,
+             WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
+         };
+ 
+     public:
+ 
+         WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
+         virtual ~WildcardPattern() = default;
+         virtual bool matches( std::string const& str ) const;
+ 
+     private:
+         std::string normaliseString( std::string const& str ) const;
+         CaseSensitive::Choice m_caseSensitivity;
+         WildcardPosition m_wildcard = NoWildcard;
+         std::string m_pattern;
+     };
+ }
+ 
+ // end catch_wildcard_pattern.h
+ #include <string>
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     struct IConfig;
+ 
+     class TestSpec {
+         class Pattern {
+         public:
+             explicit Pattern( std::string const& name );
+             virtual ~Pattern();
+             virtual bool matches( TestCaseInfo const& testCase ) const = 0;
+             std::string const& name() const;
+         private:
+             std::string const m_name;
+         };
+         using PatternPtr = std::shared_ptr<Pattern>;
+ 
+         class NamePattern : public Pattern {
+         public:
+             explicit NamePattern( std::string const& name, std::string const& filterString );
+             bool matches( TestCaseInfo const& testCase ) const override;
+         private:
+             WildcardPattern m_wildcardPattern;
+         };
+ 
+         class TagPattern : public Pattern {
+         public:
+             explicit TagPattern( std::string const& tag, std::string const& filterString );
+             bool matches( TestCaseInfo const& testCase ) const override;
+         private:
+             std::string m_tag;
+         };
+ 
+         class ExcludedPattern : public Pattern {
+         public:
+             explicit ExcludedPattern( PatternPtr const& underlyingPattern );
+             bool matches( TestCaseInfo const& testCase ) const override;
+         private:
+             PatternPtr m_underlyingPattern;
+         };
+ 
+         struct Filter {
+             std::vector<PatternPtr> m_patterns;
+ 
+             bool matches( TestCaseInfo const& testCase ) const;
+             std::string name() const;
+         };
+ 
+     public:
+         struct FilterMatch {
+             std::string name;
+             std::vector<TestCase const*> tests;
+         };
+         using Matches = std::vector<FilterMatch>;
+         using vectorStrings = std::vector<std::string>;
+ 
+         bool hasFilters() const;
+         bool matches( TestCaseInfo const& testCase ) const;
+         Matches matchesByFilter( std::vector<TestCase> const& testCases, IConfig const& config ) const;
+         const vectorStrings & getInvalidArgs() const;
+ 
+     private:
+         std::vector<Filter> m_filters;
+         std::vector<std::string> m_invalidArgs;
+         friend class TestSpecParser;
+     };
+ }
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_test_spec.h
+ // start catch_interfaces_tag_alias_registry.h
+ 
+ #include <string>
+ 
+ namespace Catch {
+ 
+     struct TagAlias;
+ 
+     struct ITagAliasRegistry {
+         virtual ~ITagAliasRegistry();
+         // Nullptr if not present
+         virtual TagAlias const* find( std::string const& alias ) const = 0;
+         virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
+ 
+         static ITagAliasRegistry const& get();
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_interfaces_tag_alias_registry.h
+ namespace Catch {
+ 
+     class TestSpecParser {
+         enum Mode{ None, Name, QuotedName, Tag, EscapedName };
+         Mode m_mode = None;
+         Mode lastMode = None;
+         bool m_exclusion = false;
+         std::size_t m_pos = 0;
+         std::size_t m_realPatternPos = 0;
+         std::string m_arg;
+         std::string m_substring;
+         std::string m_patternName;
+         std::vector<std::size_t> m_escapeChars;
+         TestSpec::Filter m_currentFilter;
+         TestSpec m_testSpec;
+         ITagAliasRegistry const* m_tagAliases = nullptr;
+ 
+     public:
+         TestSpecParser( ITagAliasRegistry const& tagAliases );
+ 
+         TestSpecParser& parse( std::string const& arg );
+         TestSpec testSpec();
+ 
+     private:
+         bool visitChar( char c );
+         void startNewMode( Mode mode );
+         bool processNoneChar( char c );
+         void processNameChar( char c );
+         bool processOtherChar( char c );
+         void endMode();
+         void escape();
+         bool isControlChar( char c ) const;
+         void saveLastMode();
+         void revertBackToLastMode();
+         void addFilter();
+         bool separate();
+ 
+         // Handles common preprocessing of the pattern for name/tag patterns
+         std::string preprocessPattern();
+         // Adds the current pattern as a test name
+         void addNamePattern();
+         // Adds the current pattern as a tag
+         void addTagPattern();
+ 
+         inline void addCharToPattern(char c) {
+             m_substring += c;
+             m_patternName += c;
+             m_realPatternPos++;
+         }
+ 
+     };
+     TestSpec parseTestSpec( std::string const& arg );
+ 
+ } // namespace Catch
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_test_spec_parser.h
+ // Libstdc++ doesn't like incomplete classes for unique_ptr
+ 
+ #include <memory>
+ #include <vector>
+ #include <string>
+ 
+ #ifndef CATCH_CONFIG_CONSOLE_WIDTH
+ #define CATCH_CONFIG_CONSOLE_WIDTH 80
+ #endif
+ 
+ namespace Catch {
+ 
+     struct IStream;
+ 
+     struct ConfigData {
+         bool listTests = false;
+         bool listTags = false;
+         bool listReporters = false;
+         bool listTestNamesOnly = false;
+ 
+         bool showSuccessfulTests = false;
+         bool shouldDebugBreak = false;
+         bool noThrow = false;
+         bool showHelp = false;
+         bool showInvisibles = false;
+         bool filenamesAsTags = false;
+         bool libIdentify = false;
+ 
+         int abortAfter = -1;
+         unsigned int rngSeed = 0;
+ 
+         bool benchmarkNoAnalysis = false;
+         unsigned int benchmarkSamples = 100;
+         double benchmarkConfidenceInterval = 0.95;
+         unsigned int benchmarkResamples = 100000;
+         std::chrono::milliseconds::rep benchmarkWarmupTime = 100;
+ 
+         Verbosity verbosity = Verbosity::Normal;
+         WarnAbout::What warnings = WarnAbout::Nothing;
+         ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
+         double minDuration = -1;
+         RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
+         UseColour::YesOrNo useColour = UseColour::Auto;
+         WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
+ 
+         std::string outputFilename;
+         std::string name;
+         std::string processName;
+ #ifndef CATCH_CONFIG_DEFAULT_REPORTER
+ #define CATCH_CONFIG_DEFAULT_REPORTER "console"
+ #endif
+         std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
+ #undef CATCH_CONFIG_DEFAULT_REPORTER
+ 
+         std::vector<std::string> testsOrTags;
+         std::vector<std::string> sectionsToRun;
+     };
+ 
+     class Config : public IConfig {
+     public:
+ 
+         Config() = default;
+         Config( ConfigData const& data );
+         virtual ~Config() = default;
+ 
+         std::string const& getFilename() const;
+ 
+         bool listTests() const;
+         bool listTestNamesOnly() const;
+         bool listTags() const;
+         bool listReporters() const;
+ 
+         std::string getProcessName() const;
+         std::string const& getReporterName() const;
+ 
+         std::vector<std::string> const& getTestsOrTags() const override;
+         std::vector<std::string> const& getSectionsToRun() const override;
+ 
+         TestSpec const& testSpec() const override;
+         bool hasTestFilters() const override;
+ 
+         bool showHelp() const;
+ 
+         // IConfig interface
+         bool allowThrows() const override;
+         std::ostream& stream() const override;
+         std::string name() const override;
+         bool includeSuccessfulResults() const override;
+         bool warnAboutMissingAssertions() const override;
+         bool warnAboutNoTests() const override;
+         ShowDurations::OrNot showDurations() const override;
+         double minDuration() const override;
+         RunTests::InWhatOrder runOrder() const override;
+         unsigned int rngSeed() const override;
+         UseColour::YesOrNo useColour() const override;
+         bool shouldDebugBreak() const override;
+         int abortAfter() const override;
+         bool showInvisibles() const override;
+         Verbosity verbosity() const override;
+         bool benchmarkNoAnalysis() const override;
+         int benchmarkSamples() const override;
+         double benchmarkConfidenceInterval() const override;
+         unsigned int benchmarkResamples() const override;
+         std::chrono::milliseconds benchmarkWarmupTime() const override;
+ 
+     private:
+ 
+         IStream const* openStream();
+         ConfigData m_data;
+ 
+         std::unique_ptr<IStream const> m_stream;
+         TestSpec m_testSpec;
+         bool m_hasTestFilters = false;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_config.hpp
+ // start catch_assertionresult.h
+ 
+ #include <string>
+ 
+ namespace Catch {
+ 
+     struct AssertionResultData
+     {
+         AssertionResultData() = delete;
+ 
+         AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );
+ 
+         std::string message;
+         mutable std::string reconstructedExpression;
+         LazyExpression lazyExpression;
+         ResultWas::OfType resultType;
+ 
+         std::string reconstructExpression() const;
+     };
+ 
+     class AssertionResult {
+     public:
+         AssertionResult() = delete;
+         AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
+ 
+         bool isOk() const;
+         bool succeeded() const;
+         ResultWas::OfType getResultType() const;
+         bool hasExpression() const;
+         bool hasMessage() const;
+         std::string getExpression() const;
+         std::string getExpressionInMacro() const;
+         bool hasExpandedExpression() const;
+         std::string getExpandedExpression() const;
+         std::string getMessage() const;
+         SourceLineInfo getSourceInfo() const;
+         StringRef getTestMacroName() const;
+ 
+     //protected:
+         AssertionInfo m_info;
+         AssertionResultData m_resultData;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_assertionresult.h
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ // start catch_estimate.hpp
+ 
+  // Statistics estimates
+ 
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Duration>
+         struct Estimate {
+             Duration point;
+             Duration lower_bound;
+             Duration upper_bound;
+             double confidence_interval;
+ 
+             template <typename Duration2>
+             operator Estimate<Duration2>() const {
+                 return { point, lower_bound, upper_bound, confidence_interval };
+             }
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_estimate.hpp
+ // start catch_outlier_classification.hpp
+ 
+ // Outlier information
+ 
+ namespace Catch {
+     namespace Benchmark {
+         struct OutlierClassification {
+             int samples_seen = 0;
+             int low_severe = 0;     // more than 3 times IQR below Q1
+             int low_mild = 0;       // 1.5 to 3 times IQR below Q1
+             int high_mild = 0;      // 1.5 to 3 times IQR above Q3
+             int high_severe = 0;    // more than 3 times IQR above Q3
+ 
+             int total() const {
+                 return low_severe + low_mild + high_mild + high_severe;
+             }
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_outlier_classification.hpp
+ 
+ #include <iterator>
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+ #include <string>
+ #include <iosfwd>
+ #include <map>
+ #include <set>
+ #include <memory>
+ #include <algorithm>
+ 
+ namespace Catch {
+ 
+     struct ReporterConfig {
+         explicit ReporterConfig( IConfigPtr const& _fullConfig );
+ 
+         ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );
+ 
+         std::ostream& stream() const;
+         IConfigPtr fullConfig() const;
+ 
+     private:
+         std::ostream* m_stream;
+         IConfigPtr m_fullConfig;
+     };
+ 
+     struct ReporterPreferences {
+         bool shouldRedirectStdOut = false;
+         bool shouldReportAllAssertions = false;
+     };
+ 
+     template<typename T>
+     struct LazyStat : Option<T> {
+         LazyStat& operator=( T const& _value ) {
+             Option<T>::operator=( _value );
+             used = false;
+             return *this;
+         }
+         void reset() {
+             Option<T>::reset();
+             used = false;
+         }
+         bool used = false;
+     };
+ 
+     struct TestRunInfo {
+         TestRunInfo( std::string const& _name );
+         std::string name;
+     };
+     struct GroupInfo {
+         GroupInfo(  std::string const& _name,
+                     std::size_t _groupIndex,
+                     std::size_t _groupsCount );
+ 
+         std::string name;
+         std::size_t groupIndex;
+         std::size_t groupsCounts;
+     };
+ 
+     struct AssertionStats {
+         AssertionStats( AssertionResult const& _assertionResult,
+                         std::vector<MessageInfo> const& _infoMessages,
+                         Totals const& _totals );
+ 
+         AssertionStats( AssertionStats const& )              = default;
+         AssertionStats( AssertionStats && )                  = default;
+         AssertionStats& operator = ( AssertionStats const& ) = delete;
+         AssertionStats& operator = ( AssertionStats && )     = delete;
+         virtual ~AssertionStats();
+ 
+         AssertionResult assertionResult;
+         std::vector<MessageInfo> infoMessages;
+         Totals totals;
+     };
+ 
+     struct SectionStats {
+         SectionStats(   SectionInfo const& _sectionInfo,
+                         Counts const& _assertions,
+                         double _durationInSeconds,
+                         bool _missingAssertions );
+         SectionStats( SectionStats const& )              = default;
+         SectionStats( SectionStats && )                  = default;
+         SectionStats& operator = ( SectionStats const& ) = default;
+         SectionStats& operator = ( SectionStats && )     = default;
+         virtual ~SectionStats();
+ 
+         SectionInfo sectionInfo;
+         Counts assertions;
+         double durationInSeconds;
+         bool missingAssertions;
+     };
+ 
+     struct TestCaseStats {
+         TestCaseStats(  TestCaseInfo const& _testInfo,
+                         Totals const& _totals,
+                         std::string const& _stdOut,
+                         std::string const& _stdErr,
+                         bool _aborting );
+ 
+         TestCaseStats( TestCaseStats const& )              = default;
+         TestCaseStats( TestCaseStats && )                  = default;
+         TestCaseStats& operator = ( TestCaseStats const& ) = default;
+         TestCaseStats& operator = ( TestCaseStats && )     = default;
+         virtual ~TestCaseStats();
+ 
+         TestCaseInfo testInfo;
+         Totals totals;
+         std::string stdOut;
+         std::string stdErr;
+         bool aborting;
+     };
+ 
+     struct TestGroupStats {
+         TestGroupStats( GroupInfo const& _groupInfo,
+                         Totals const& _totals,
+                         bool _aborting );
+         TestGroupStats( GroupInfo const& _groupInfo );
+ 
+         TestGroupStats( TestGroupStats const& )              = default;
+         TestGroupStats( TestGroupStats && )                  = default;
+         TestGroupStats& operator = ( TestGroupStats const& ) = default;
+         TestGroupStats& operator = ( TestGroupStats && )     = default;
+         virtual ~TestGroupStats();
+ 
+         GroupInfo groupInfo;
+         Totals totals;
+         bool aborting;
+     };
+ 
+     struct TestRunStats {
+         TestRunStats(   TestRunInfo const& _runInfo,
+                         Totals const& _totals,
+                         bool _aborting );
+ 
+         TestRunStats( TestRunStats const& )              = default;
+         TestRunStats( TestRunStats && )                  = default;
+         TestRunStats& operator = ( TestRunStats const& ) = default;
+         TestRunStats& operator = ( TestRunStats && )     = default;
+         virtual ~TestRunStats();
+ 
+         TestRunInfo runInfo;
+         Totals totals;
+         bool aborting;
+     };
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+     struct BenchmarkInfo {
+         std::string name;
+         double estimatedDuration;
+         int iterations;
+         int samples;
+         unsigned int resamples;
+         double clockResolution;
+         double clockCost;
+     };
+ 
+     template <class Duration>
+     struct BenchmarkStats {
+         BenchmarkInfo info;
+ 
+         std::vector<Duration> samples;
+         Benchmark::Estimate<Duration> mean;
+         Benchmark::Estimate<Duration> standardDeviation;
+         Benchmark::OutlierClassification outliers;
+         double outlierVariance;
+ 
+         template <typename Duration2>
+         operator BenchmarkStats<Duration2>() const {
+             std::vector<Duration2> samples2;
+             samples2.reserve(samples.size());
+             std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](Duration d) { return Duration2(d); });
+             return {
+                 info,
+                 std::move(samples2),
+                 mean,
+                 standardDeviation,
+                 outliers,
+                 outlierVariance,
+             };
+         }
+     };
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     struct IStreamingReporter {
+         virtual ~IStreamingReporter() = default;
+ 
+         // Implementing class must also provide the following static methods:
+         // static std::string getDescription();
+         // static std::set<Verbosity> getSupportedVerbosities()
+ 
+         virtual ReporterPreferences getPreferences() const = 0;
+ 
+         virtual void noMatchingTestCases( std::string const& spec ) = 0;
+ 
+         virtual void reportInvalidArguments(std::string const&) {}
+ 
+         virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
+         virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;
+ 
+         virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
+         virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         virtual void benchmarkPreparing( std::string const& ) {}
+         virtual void benchmarkStarting( BenchmarkInfo const& ) {}
+         virtual void benchmarkEnded( BenchmarkStats<> const& ) {}
+         virtual void benchmarkFailed( std::string const& ) {}
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+         virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;
+ 
+         // The return value indicates if the messages buffer should be cleared:
+         virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;
+ 
+         virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
+         virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
+         virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
+         virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;
+ 
+         virtual void skipTest( TestCaseInfo const& testInfo ) = 0;
+ 
+         // Default empty implementation provided
+         virtual void fatalErrorEncountered( StringRef name );
+ 
+         virtual bool isMulti() const;
+     };
+     using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
+ 
+     struct IReporterFactory {
+         virtual ~IReporterFactory();
+         virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
+         virtual std::string getDescription() const = 0;
+     };
+     using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
+ 
+     struct IReporterRegistry {
+         using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
+         using Listeners = std::vector<IReporterFactoryPtr>;
+ 
+         virtual ~IReporterRegistry();
+         virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
+         virtual FactoryMap const& getFactories() const = 0;
+         virtual Listeners const& getListeners() const = 0;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_interfaces_reporter.h
+ #include <algorithm>
+ #include <cstring>
+ #include <cfloat>
+ #include <cstdio>
+ #include <cassert>
+ #include <memory>
+ #include <ostream>
+ 
+ namespace Catch {
+     void prepareExpandedExpression(AssertionResult& result);
+ 
+     // Returns double formatted as %.3f (format expected on output)
+     std::string getFormattedDuration( double duration );
+ 
+     //! Should the reporter show
+     bool shouldShowDuration( IConfig const& config, double duration );
+ 
+     std::string serializeFilters( std::vector<std::string> const& container );
+ 
+     template<typename DerivedT>
+     struct StreamingReporterBase : IStreamingReporter {
+ 
+         StreamingReporterBase( ReporterConfig const& _config )
+         :   m_config( _config.fullConfig() ),
+             stream( _config.stream() )
+         {
+             m_reporterPrefs.shouldRedirectStdOut = false;
+             if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
+                 CATCH_ERROR( "Verbosity level not supported by this reporter" );
+         }
+ 
+         ReporterPreferences getPreferences() const override {
+             return m_reporterPrefs;
+         }
+ 
+         static std::set<Verbosity> getSupportedVerbosities() {
+             return { Verbosity::Normal };
+         }
+ 
+         ~StreamingReporterBase() override = default;
+ 
+         void noMatchingTestCases(std::string const&) override {}
+ 
+         void reportInvalidArguments(std::string const&) override {}
+ 
+         void testRunStarting(TestRunInfo const& _testRunInfo) override {
+             currentTestRunInfo = _testRunInfo;
+         }
+ 
+         void testGroupStarting(GroupInfo const& _groupInfo) override {
+             currentGroupInfo = _groupInfo;
+         }
+ 
+         void testCaseStarting(TestCaseInfo const& _testInfo) override  {
+             currentTestCaseInfo = _testInfo;
+         }
+         void sectionStarting(SectionInfo const& _sectionInfo) override {
+             m_sectionStack.push_back(_sectionInfo);
+         }
+ 
+         void sectionEnded(SectionStats const& /* _sectionStats */) override {
+             m_sectionStack.pop_back();
+         }
+         void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
+             currentTestCaseInfo.reset();
+         }
+         void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
+             currentGroupInfo.reset();
+         }
+         void testRunEnded(TestRunStats const& /* _testRunStats */) override {
+             currentTestCaseInfo.reset();
+             currentGroupInfo.reset();
+             currentTestRunInfo.reset();
+         }
+ 
+         void skipTest(TestCaseInfo const&) override {
+             // Don't do anything with this by default.
+             // It can optionally be overridden in the derived class.
+         }
+ 
+         IConfigPtr m_config;
+         std::ostream& stream;
+ 
+         LazyStat<TestRunInfo> currentTestRunInfo;
+         LazyStat<GroupInfo> currentGroupInfo;
+         LazyStat<TestCaseInfo> currentTestCaseInfo;
+ 
+         std::vector<SectionInfo> m_sectionStack;
+         ReporterPreferences m_reporterPrefs;
+     };
+ 
+     template<typename DerivedT>
+     struct CumulativeReporterBase : IStreamingReporter {
+         template<typename T, typename ChildNodeT>
+         struct Node {
+             explicit Node( T const& _value ) : value( _value ) {}
+             virtual ~Node() {}
+ 
+             using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
+             T value;
+             ChildNodes children;
+         };
+         struct SectionNode {
+             explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
+             virtual ~SectionNode() = default;
+ 
+             bool operator == (SectionNode const& other) const {
+                 return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
+             }
+             bool operator == (std::shared_ptr<SectionNode> const& other) const {
+                 return operator==(*other);
+             }
+ 
+             SectionStats stats;
+             using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
+             using Assertions = std::vector<AssertionStats>;
+             ChildSections childSections;
+             Assertions assertions;
+             std::string stdOut;
+             std::string stdErr;
+         };
+ 
+         struct BySectionInfo {
+             BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
+             BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
+             bool operator() (std::shared_ptr<SectionNode> const& node) const {
+                 return ((node->stats.sectionInfo.name == m_other.name) &&
+                         (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
+             }
+             void operator=(BySectionInfo const&) = delete;
+ 
+         private:
+             SectionInfo const& m_other;
+         };
+ 
+         using TestCaseNode = Node<TestCaseStats, SectionNode>;
+         using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
+         using TestRunNode = Node<TestRunStats, TestGroupNode>;
+ 
+         CumulativeReporterBase( ReporterConfig const& _config )
+         :   m_config( _config.fullConfig() ),
+             stream( _config.stream() )
+         {
+             m_reporterPrefs.shouldRedirectStdOut = false;
+             if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
+                 CATCH_ERROR( "Verbosity level not supported by this reporter" );
+         }
+         ~CumulativeReporterBase() override = default;
+ 
+         ReporterPreferences getPreferences() const override {
+             return m_reporterPrefs;
+         }
+ 
+         static std::set<Verbosity> getSupportedVerbosities() {
+             return { Verbosity::Normal };
+         }
+ 
+         void testRunStarting( TestRunInfo const& ) override {}
+         void testGroupStarting( GroupInfo const& ) override {}
+ 
+         void testCaseStarting( TestCaseInfo const& ) override {}
+ 
+         void sectionStarting( SectionInfo const& sectionInfo ) override {
+             SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
+             std::shared_ptr<SectionNode> node;
+             if( m_sectionStack.empty() ) {
+                 if( !m_rootSection )
+                     m_rootSection = std::make_shared<SectionNode>( incompleteStats );
+                 node = m_rootSection;
+             }
+             else {
+                 SectionNode& parentNode = *m_sectionStack.back();
+                 auto it =
+                     std::find_if(   parentNode.childSections.begin(),
+                                     parentNode.childSections.end(),
+                                     BySectionInfo( sectionInfo ) );
+                 if( it == parentNode.childSections.end() ) {
+                     node = std::make_shared<SectionNode>( incompleteStats );
+                     parentNode.childSections.push_back( node );
+                 }
+                 else
+                     node = *it;
+             }
+             m_sectionStack.push_back( node );
+             m_deepestSection = std::move(node);
+         }
+ 
+         void assertionStarting(AssertionInfo const&) override {}
+ 
+         bool assertionEnded(AssertionStats const& assertionStats) override {
+             assert(!m_sectionStack.empty());
+             // AssertionResult holds a pointer to a temporary DecomposedExpression,
+             // which getExpandedExpression() calls to build the expression string.
+             // Our section stack copy of the assertionResult will likely outlive the
+             // temporary, so it must be expanded or discarded now to avoid calling
+             // a destroyed object later.
+             prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
+             SectionNode& sectionNode = *m_sectionStack.back();
+             sectionNode.assertions.push_back(assertionStats);
+             return true;
+         }
+         void sectionEnded(SectionStats const& sectionStats) override {
+             assert(!m_sectionStack.empty());
+             SectionNode& node = *m_sectionStack.back();
+             node.stats = sectionStats;
+             m_sectionStack.pop_back();
+         }
+         void testCaseEnded(TestCaseStats const& testCaseStats) override {
+             auto node = std::make_shared<TestCaseNode>(testCaseStats);
+             assert(m_sectionStack.size() == 0);
+             node->children.push_back(m_rootSection);
+             m_testCases.push_back(node);
+             m_rootSection.reset();
+ 
+             assert(m_deepestSection);
+             m_deepestSection->stdOut = testCaseStats.stdOut;
+             m_deepestSection->stdErr = testCaseStats.stdErr;
+         }
+         void testGroupEnded(TestGroupStats const& testGroupStats) override {
+             auto node = std::make_shared<TestGroupNode>(testGroupStats);
+             node->children.swap(m_testCases);
+             m_testGroups.push_back(node);
+         }
+         void testRunEnded(TestRunStats const& testRunStats) override {
+             auto node = std::make_shared<TestRunNode>(testRunStats);
+             node->children.swap(m_testGroups);
+             m_testRuns.push_back(node);
+             testRunEndedCumulative();
+         }
+         virtual void testRunEndedCumulative() = 0;
+ 
+         void skipTest(TestCaseInfo const&) override {}
+ 
+         IConfigPtr m_config;
+         std::ostream& stream;
+         std::vector<AssertionStats> m_assertions;
+         std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
+         std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
+         std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
+ 
+         std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
+ 
+         std::shared_ptr<SectionNode> m_rootSection;
+         std::shared_ptr<SectionNode> m_deepestSection;
+         std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
+         ReporterPreferences m_reporterPrefs;
+     };
+ 
+     template<char C>
+     char const* getLineOfChars() {
+         static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
+         if( !*line ) {
+             std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
+             line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
+         }
+         return line;
+     }
+ 
+     struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
+         TestEventListenerBase( ReporterConfig const& _config );
+ 
+         static std::set<Verbosity> getSupportedVerbosities();
+ 
+         void assertionStarting(AssertionInfo const&) override;
+         bool assertionEnded(AssertionStats const&) override;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_reporter_bases.hpp
+ // start catch_console_colour.h
+ 
+ namespace Catch {
+ 
+     struct Colour {
+         enum Code {
+             None = 0,
+ 
+             White,
+             Red,
+             Green,
+             Blue,
+             Cyan,
+             Yellow,
+             Grey,
+ 
+             Bright = 0x10,
+ 
+             BrightRed = Bright | Red,
+             BrightGreen = Bright | Green,
+             LightGrey = Bright | Grey,
+             BrightWhite = Bright | White,
+             BrightYellow = Bright | Yellow,
+ 
+             // By intention
+             FileName = LightGrey,
+             Warning = BrightYellow,
+             ResultError = BrightRed,
+             ResultSuccess = BrightGreen,
+             ResultExpectedFailure = Warning,
+ 
+             Error = BrightRed,
+             Success = Green,
+ 
+             OriginalExpression = Cyan,
+             ReconstructedExpression = BrightYellow,
+ 
+             SecondaryText = LightGrey,
+             Headers = White
+         };
+ 
+         // Use constructed object for RAII guard
+         Colour( Code _colourCode );
+         Colour( Colour&& other ) noexcept;
+         Colour& operator=( Colour&& other ) noexcept;
+         ~Colour();
+ 
+         // Use static method for one-shot changes
+         static void use( Code _colourCode );
+ 
+     private:
+         bool m_moved = false;
+     };
+ 
+     std::ostream& operator << ( std::ostream& os, Colour const& );
+ 
+ } // end namespace Catch
+ 
+ // end catch_console_colour.h
+ // start catch_reporter_registrars.hpp
+ 
+ 
+ namespace Catch {
+ 
+     template<typename T>
+     class ReporterRegistrar {
+ 
+         class ReporterFactory : public IReporterFactory {
+ 
+             IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                 return std::unique_ptr<T>( new T( config ) );
+             }
+ 
+             std::string getDescription() const override {
+                 return T::getDescription();
+             }
+         };
+ 
+     public:
+ 
+         explicit ReporterRegistrar( std::string const& name ) {
+             getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
+         }
+     };
+ 
+     template<typename T>
+     class ListenerRegistrar {
+ 
+         class ListenerFactory : public IReporterFactory {
+ 
+             IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                 return std::unique_ptr<T>( new T( config ) );
+             }
+             std::string getDescription() const override {
+                 return std::string();
+             }
+         };
+ 
+     public:
+ 
+         ListenerRegistrar() {
+             getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
+         }
+     };
+ }
+ 
+ #if !defined(CATCH_CONFIG_DISABLE)
+ 
+ #define CATCH_REGISTER_REPORTER( name, reporterType ) \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION         \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
+     namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+ #define CATCH_REGISTER_LISTENER( listenerType ) \
+     CATCH_INTERNAL_START_WARNINGS_SUPPRESSION   \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS    \
      namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
-     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
-#else // CATCH_CONFIG_DISABLE
-
-#define CATCH_REGISTER_REPORTER(name, reporterType)
-#define CATCH_REGISTER_LISTENER(listenerType)
-
-#endif // CATCH_CONFIG_DISABLE
-
-// end catch_reporter_registrars.hpp
-// Allow users to base their work off existing reporters
-// start catch_reporter_compact.h
-
-namespace Catch {
-
-    struct CompactReporter : StreamingReporterBase<CompactReporter> {
-
-        using StreamingReporterBase::StreamingReporterBase;
-
-        ~CompactReporter() override;
-
-        static std::string getDescription();
-
-        ReporterPreferences getPreferences() const override;
-
-        void noMatchingTestCases(std::string const& spec) override;
-
-        void assertionStarting(AssertionInfo const&) override;
-
-        bool assertionEnded(AssertionStats const& _assertionStats) override;
-
-        void sectionEnded(SectionStats const& _sectionStats) override;
-
-        void testRunEnded(TestRunStats const& _testRunStats) override;
-
-    };
-
-} // end namespace Catch
-
-// end catch_reporter_compact.h
-// start catch_reporter_console.h
-
-#if defined(_MSC_VER)
-#pragma warning(push)
-#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
-                              // Note that 4062 (not all labels are handled
-                              // and default is missing) is enabled
-#endif
-
-namespace Catch {
-    // Fwd decls
-    struct SummaryColumn;
-    class TablePrinter;
-
-    struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
-        std::unique_ptr<TablePrinter> m_tablePrinter;
-
-        ConsoleReporter(ReporterConfig const& config);
-        ~ConsoleReporter() override;
-        static std::string getDescription();
-
-        void noMatchingTestCases(std::string const& spec) override;
-
-        void assertionStarting(AssertionInfo const&) override;
-
-        bool assertionEnded(AssertionStats const& _assertionStats) override;
-
-        void sectionStarting(SectionInfo const& _sectionInfo) override;
-        void sectionEnded(SectionStats const& _sectionStats) override;
-
-        void benchmarkStarting(BenchmarkInfo const& info) override;
-        void benchmarkEnded(BenchmarkStats const& stats) override;
-
-        void testCaseEnded(TestCaseStats const& _testCaseStats) override;
-        void testGroupEnded(TestGroupStats const& _testGroupStats) override;
-        void testRunEnded(TestRunStats const& _testRunStats) override;
-
-    private:
-
-        void lazyPrint();
-
-        void lazyPrintWithoutClosingBenchmarkTable();
-        void lazyPrintRunInfo();
-        void lazyPrintGroupInfo();
-        void printTestCaseAndSectionHeader();
-
-        void printClosedHeader(std::string const& _name);
-        void printOpenHeader(std::string const& _name);
-
-        // if string has a : in first line will set indent to follow it on
-        // subsequent lines
-        void printHeaderString(std::string const& _string, std::size_t indent = 0);
-
-        void printTotals(Totals const& totals);
-        void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row);
-
-        void printTotalsDivider(Totals const& totals);
-        void printSummaryDivider();
-
-    private:
-        bool m_headerPrinted = false;
-    };
-
-} // end namespace Catch
-
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
-
-// end catch_reporter_console.h
-// start catch_reporter_junit.h
-
-// start catch_xmlwriter.h
-
-#include <vector>
-
-namespace Catch {
-
-    class XmlEncode {
-    public:
-        enum ForWhat { ForTextNodes, ForAttributes };
-
-        XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );
-
-        void encodeTo( std::ostream& os ) const;
-
-        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );
-
-    private:
-        std::string m_str;
-        ForWhat m_forWhat;
-    };
-
-    class XmlWriter {
-    public:
-
-        class ScopedElement {
-        public:
-            ScopedElement( XmlWriter* writer );
-
-            ScopedElement( ScopedElement&& other ) noexcept;
-            ScopedElement& operator=( ScopedElement&& other ) noexcept;
-
-            ~ScopedElement();
-
-            ScopedElement& writeText( std::string const& text, bool indent = true );
-
-            template<typename T>
-            ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
-                m_writer->writeAttribute( name, attribute );
-                return *this;
-            }
-
-        private:
-            mutable XmlWriter* m_writer = nullptr;
-        };
-
-        XmlWriter( std::ostream& os = Catch::cout() );
-        ~XmlWriter();
-
-        XmlWriter( XmlWriter const& ) = delete;
-        XmlWriter& operator=( XmlWriter const& ) = delete;
-
-        XmlWriter& startElement( std::string const& name );
-
-        ScopedElement scopedElement( std::string const& name );
-
-        XmlWriter& endElement();
-
-        XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );
-
-        XmlWriter& writeAttribute( std::string const& name, bool attribute );
-
-        template<typename T>
-        XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
-            ReusableStringStream rss;
-            rss << attribute;
-            return writeAttribute( name, rss.str() );
-        }
-
-        XmlWriter& writeText( std::string const& text, bool indent = true );
-
-        XmlWriter& writeComment( std::string const& text );
-
-        void writeStylesheetRef( std::string const& url );
-
-        XmlWriter& writeBlankLine();
-
-        void ensureTagClosed();
-
-    private:
-
-        void writeDeclaration();
-
-        void newlineIfNecessary();
-
-        bool m_tagIsOpen = false;
-        bool m_needsNewline = false;
-        std::vector<std::string> m_tags;
-        std::string m_indent;
-        std::ostream& m_os;
-    };
-
-}
-
-// end catch_xmlwriter.h
-namespace Catch {
-
-    class JunitReporter : public CumulativeReporterBase<JunitReporter> {
-    public:
-        JunitReporter(ReporterConfig const& _config);
-
-        ~JunitReporter() override;
-
-        static std::string getDescription();
-
-        void noMatchingTestCases(std::string const& /*spec*/) override;
-
-        void testRunStarting(TestRunInfo const& runInfo) override;
-
-        void testGroupStarting(GroupInfo const& groupInfo) override;
-
-        void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
-        bool assertionEnded(AssertionStats const& assertionStats) override;
-
-        void testCaseEnded(TestCaseStats const& testCaseStats) override;
-
-        void testGroupEnded(TestGroupStats const& testGroupStats) override;
-
-        void testRunEndedCumulative() override;
-
-        void writeGroup(TestGroupNode const& groupNode, double suiteTime);
-
-        void writeTestCase(TestCaseNode const& testCaseNode);
-
-        void writeSection(std::string const& className,
-                          std::string const& rootName,
-                          SectionNode const& sectionNode);
-
-        void writeAssertions(SectionNode const& sectionNode);
-        void writeAssertion(AssertionStats const& stats);
-
-        XmlWriter xml;
-        Timer suiteTimer;
-        std::string stdOutForSuite;
-        std::string stdErrForSuite;
-        unsigned int unexpectedExceptions = 0;
-        bool m_okToFail = false;
-    };
-
-} // end namespace Catch
-
-// end catch_reporter_junit.h
-// start catch_reporter_xml.h
-
-namespace Catch {
-    class XmlReporter : public StreamingReporterBase<XmlReporter> {
-    public:
-        XmlReporter(ReporterConfig const& _config);
-
-        ~XmlReporter() override;
-
-        static std::string getDescription();
-
-        virtual std::string getStylesheetRef() const;
-
-        void writeSourceInfo(SourceLineInfo const& sourceInfo);
-
-    public: // StreamingReporterBase
-
-        void noMatchingTestCases(std::string const& s) override;
-
-        void testRunStarting(TestRunInfo const& testInfo) override;
-
-        void testGroupStarting(GroupInfo const& groupInfo) override;
-
-        void testCaseStarting(TestCaseInfo const& testInfo) override;
-
-        void sectionStarting(SectionInfo const& sectionInfo) override;
-
-        void assertionStarting(AssertionInfo const&) override;
-
-        bool assertionEnded(AssertionStats const& assertionStats) override;
-
-        void sectionEnded(SectionStats const& sectionStats) override;
-
-        void testCaseEnded(TestCaseStats const& testCaseStats) override;
-
-        void testGroupEnded(TestGroupStats const& testGroupStats) override;
-
-        void testRunEnded(TestRunStats const& testRunStats) override;
-
-    private:
-        Timer m_testCaseTimer;
-        XmlWriter m_xml;
-        int m_sectionDepth = 0;
-    };
-
-} // end namespace Catch
-
-// end catch_reporter_xml.h
-
-// end catch_external_interfaces.h
-#endif
-
-#endif // ! CATCH_CONFIG_IMPL_ONLY
-
-#ifdef CATCH_IMPL
-// start catch_impl.hpp
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wweak-vtables"
-#endif
-
-// Keep these here for external reporters
-// start catch_test_case_tracker.h
-
-#include <string>
-#include <vector>
-#include <memory>
-
-namespace Catch {
-namespace TestCaseTracking {
-
-    struct NameAndLocation {
-        std::string name;
-        SourceLineInfo location;
-
-        NameAndLocation( std::string const& _name, SourceLineInfo const& _location );
-    };
-
-    struct ITracker;
-
-    using ITrackerPtr = std::shared_ptr<ITracker>;
-
-    struct ITracker {
-        virtual ~ITracker();
-
-        // static queries
-        virtual NameAndLocation const& nameAndLocation() const = 0;
-
-        // dynamic queries
-        virtual bool isComplete() const = 0; // Successfully completed or failed
-        virtual bool isSuccessfullyCompleted() const = 0;
-        virtual bool isOpen() const = 0; // Started but not complete
-        virtual bool hasChildren() const = 0;
-
-        virtual ITracker& parent() = 0;
-
-        // actions
-        virtual void close() = 0; // Successfully complete
-        virtual void fail() = 0;
-        virtual void markAsNeedingAnotherRun() = 0;
-
-        virtual void addChild( ITrackerPtr const& child ) = 0;
-        virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) = 0;
-        virtual void openChild() = 0;
-
-        // Debug/ checking
-        virtual bool isSectionTracker() const = 0;
-        virtual bool isIndexTracker() const = 0;
-    };
-
-    class TrackerContext {
-
-        enum RunState {
-            NotStarted,
-            Executing,
-            CompletedCycle
-        };
-
-        ITrackerPtr m_rootTracker;
-        ITracker* m_currentTracker = nullptr;
-        RunState m_runState = NotStarted;
-
-    public:
-
-        static TrackerContext& instance();
-
-        ITracker& startRun();
-        void endRun();
-
-        void startCycle();
-        void completeCycle();
-
-        bool completedCycle() const;
-        ITracker& currentTracker();
-        void setCurrentTracker( ITracker* tracker );
-    };
-
-    class TrackerBase : public ITracker {
-    protected:
-        enum CycleState {
-            NotStarted,
-            Executing,
-            ExecutingChildren,
-            NeedsAnotherRun,
-            CompletedSuccessfully,
-            Failed
-        };
-
-        class TrackerHasName {
-            NameAndLocation m_nameAndLocation;
-        public:
-            TrackerHasName( NameAndLocation const& nameAndLocation );
-            bool operator ()( ITrackerPtr const& tracker ) const;
-        };
-
-        using Children = std::vector<ITrackerPtr>;
-        NameAndLocation m_nameAndLocation;
-        TrackerContext& m_ctx;
-        ITracker* m_parent;
-        Children m_children;
-        CycleState m_runState = NotStarted;
-
-    public:
-        TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
-
-        NameAndLocation const& nameAndLocation() const override;
-        bool isComplete() const override;
-        bool isSuccessfullyCompleted() const override;
-        bool isOpen() const override;
-        bool hasChildren() const override;
-
-        void addChild( ITrackerPtr const& child ) override;
-
-        ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) override;
-        ITracker& parent() override;
-
-        void openChild() override;
-
-        bool isSectionTracker() const override;
-        bool isIndexTracker() const override;
-
-        void open();
-
-        void close() override;
-        void fail() override;
-        void markAsNeedingAnotherRun() override;
-
-    private:
-        void moveToParent();
-        void moveToThis();
-    };
-
-    class SectionTracker : public TrackerBase {
-        std::vector<std::string> m_filters;
-    public:
-        SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
-
-        bool isSectionTracker() const override;
-
-        static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation );
-
-        void tryOpen();
-
-        void addInitialFilters( std::vector<std::string> const& filters );
-        void addNextFilters( std::vector<std::string> const& filters );
-    };
-
-    class IndexTracker : public TrackerBase {
-        int m_size;
-        int m_index = -1;
-    public:
-        IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size );
-
-        bool isIndexTracker() const override;
-        void close() override;
-
-        static IndexTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size );
-
-        int index() const;
-
-        void moveNext();
-    };
-
-} // namespace TestCaseTracking
-
-using TestCaseTracking::ITracker;
-using TestCaseTracking::TrackerContext;
-using TestCaseTracking::SectionTracker;
-using TestCaseTracking::IndexTracker;
-
-} // namespace Catch
-
-// end catch_test_case_tracker.h
-
-// start catch_leak_detector.h
-
-namespace Catch {
-
-    struct LeakDetector {
-        LeakDetector();
-    };
-
-}
-// end catch_leak_detector.h
-// Cpp files will be included in the single-header file here
-// start catch_approx.cpp
-
-#include <cmath>
-#include <limits>
-
-namespace {
-
-// Performs equivalent check of std::fabs(lhs - rhs) <= margin
-// But without the subtraction to allow for INFINITY in comparison
-bool marginComparison(double lhs, double rhs, double margin) {
-    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
-}
-
-}
-
-namespace Catch {
-namespace Detail {
-
-    Approx::Approx ( double value )
-    :   m_epsilon( std::numeric_limits<float>::epsilon()*100 ),
-        m_margin( 0.0 ),
-        m_scale( 0.0 ),
-        m_value( value )
-    {}
-
-    Approx Approx::custom() {
-        return Approx( 0 );
-    }
-
-    std::string Approx::toString() const {
-        ReusableStringStream rss;
-        rss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
-        return rss.str();
-    }
-
-    bool Approx::equalityComparisonImpl(const double other) const {
-        // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
-        // Thanks to Richard Harris for his help refining the scaled margin value
-        return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
-    }
-
-} // end namespace Detail
-
-std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
-    return value.toString();
-}
-
-} // end namespace Catch
-// end catch_approx.cpp
-// start catch_assertionhandler.cpp
-
-// start catch_context.h
-
-#include <memory>
-
-namespace Catch {
-
-    struct IResultCapture;
-    struct IRunner;
-    struct IConfig;
-    struct IMutableContext;
-
-    using IConfigPtr = std::shared_ptr<IConfig const>;
-
-    struct IContext
-    {
-        virtual ~IContext();
-
-        virtual IResultCapture* getResultCapture() = 0;
-        virtual IRunner* getRunner() = 0;
-        virtual IConfigPtr const& getConfig() const = 0;
-    };
-
-    struct IMutableContext : IContext
-    {
-        virtual ~IMutableContext();
-        virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
-        virtual void setRunner( IRunner* runner ) = 0;
-        virtual void setConfig( IConfigPtr const& config ) = 0;
-
-    private:
-        static IMutableContext *currentContext;
-        friend IMutableContext& getCurrentMutableContext();
-        friend void cleanUpContext();
-        static void createContext();
-    };
-
-    inline IMutableContext& getCurrentMutableContext()
-    {
-        if( !IMutableContext::currentContext )
-            IMutableContext::createContext();
-        return *IMutableContext::currentContext;
-    }
-
-    inline IContext& getCurrentContext()
-    {
-        return getCurrentMutableContext();
-    }
-
-    void cleanUpContext();
-}
-
-// end catch_context.h
-// start catch_debugger.h
-
-namespace Catch {
-    bool isDebuggerActive();
-}
-
-#ifdef CATCH_PLATFORM_MAC
-
-    #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
-
-#elif defined(CATCH_PLATFORM_LINUX)
-    // If we can use inline assembler, do it because this allows us to break
-    // directly at the location of the failing check instead of breaking inside
-    // raise() called from it, i.e. one stack frame below.
-    #if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
-        #define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
-    #else // Fall back to the generic way.
-        #include <signal.h>
-
-        #define CATCH_TRAP() raise(SIGTRAP)
-    #endif
-#elif defined(_MSC_VER)
-    #define CATCH_TRAP() __debugbreak()
-#elif defined(__MINGW32__)
-    extern "C" __declspec(dllimport) void __stdcall DebugBreak();
-    #define CATCH_TRAP() DebugBreak()
-#endif
-
-#ifdef CATCH_TRAP
-    #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
-#else
-    namespace Catch {
-        inline void doNothing() {}
-    }
-    #define CATCH_BREAK_INTO_DEBUGGER() Catch::doNothing()
-#endif
-
-// end catch_debugger.h
-// start catch_run_context.h
-
-// start catch_fatal_condition.h
-
-// start catch_windows_h_proxy.h
-
-
-#if defined(CATCH_PLATFORM_WINDOWS)
-
-#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
-#  define CATCH_DEFINED_NOMINMAX
-#  define NOMINMAX
-#endif
-#if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
-#  define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
-#  define WIN32_LEAN_AND_MEAN
-#endif
-
-#ifdef __AFXDLL
-#include <AfxWin.h>
-#else
-#include <windows.h>
-#endif
-
-#ifdef CATCH_DEFINED_NOMINMAX
-#  undef NOMINMAX
-#endif
-#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
-#  undef WIN32_LEAN_AND_MEAN
-#endif
-
-#endif // defined(CATCH_PLATFORM_WINDOWS)
-
-// end catch_windows_h_proxy.h
-#if defined( CATCH_CONFIG_WINDOWS_SEH )
-
-namespace Catch {
-
-    struct FatalConditionHandler {
-
-        static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
-        FatalConditionHandler();
-        static void reset();
-        ~FatalConditionHandler();
-
-    private:
-        static bool isSet;
-        static ULONG guaranteeSize;
-        static PVOID exceptionHandlerHandle;
-    };
-
-} // namespace Catch
-
-#elif defined ( CATCH_CONFIG_POSIX_SIGNALS )
-
-#include <signal.h>
-
-namespace Catch {
-
-    struct FatalConditionHandler {
-
-        static bool isSet;
-        static struct sigaction oldSigActions[];
-        static stack_t oldSigStack;
-        static char altStackMem[];
-
-        static void handleSignal( int sig );
-
-        FatalConditionHandler();
-        ~FatalConditionHandler();
-        static void reset();
-    };
-
-} // namespace Catch
-
-#else
-
-namespace Catch {
-    struct FatalConditionHandler {
-        void reset();
-    };
-}
-
-#endif
-
-// end catch_fatal_condition.h
-#include <string>
-
-namespace Catch {
-
-    struct IMutableContext;
-
-    ///////////////////////////////////////////////////////////////////////////
-
-    class RunContext : public IResultCapture, public IRunner {
-
-    public:
-        RunContext( RunContext const& ) = delete;
-        RunContext& operator =( RunContext const& ) = delete;
-
-        explicit RunContext( IConfigPtr const& _config, IStreamingReporterPtr&& reporter );
-
-        ~RunContext() override;
-
-        void testGroupStarting( std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount );
-        void testGroupEnded( std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount );
-
-        Totals runTest(TestCase const& testCase);
-
-        IConfigPtr config() const;
-        IStreamingReporter& reporter() const;
-
-    public: // IResultCapture
-
-        // Assertion handlers
-        void handleExpr
-                (   AssertionInfo const& info,
-                    ITransientExpression const& expr,
-                    AssertionReaction& reaction ) override;
-        void handleMessage
-                (   AssertionInfo const& info,
-                    ResultWas::OfType resultType,
-                    StringRef const& message,
-                    AssertionReaction& reaction ) override;
-        void handleUnexpectedExceptionNotThrown
-                (   AssertionInfo const& info,
-                    AssertionReaction& reaction ) override;
-        void handleUnexpectedInflightException
-                (   AssertionInfo const& info,
-                    std::string const& message,
-                    AssertionReaction& reaction ) override;
-        void handleIncomplete
-                (   AssertionInfo const& info ) override;
-        void handleNonExpr
-                (   AssertionInfo const &info,
-                    ResultWas::OfType resultType,
-                    AssertionReaction &reaction ) override;
-
-        bool sectionStarted( SectionInfo const& sectionInfo, Counts& assertions ) override;
-
-        void sectionEnded( SectionEndInfo const& endInfo ) override;
-        void sectionEndedEarly( SectionEndInfo const& endInfo ) override;
-
-        void benchmarkStarting( BenchmarkInfo const& info ) override;
-        void benchmarkEnded( BenchmarkStats const& stats ) override;
-
-        void pushScopedMessage( MessageInfo const& message ) override;
-        void popScopedMessage( MessageInfo const& message ) override;
-
-        std::string getCurrentTestName() const override;
-
-        const AssertionResult* getLastResult() const override;
-
-        void exceptionEarlyReported() override;
-
-        void handleFatalErrorCondition( StringRef message ) override;
-
-        bool lastAssertionPassed() override;
-
-        void assertionPassed() override;
-
-    public:
-        // !TBD We need to do this another way!
-        bool aborting() const final;
-
-    private:
-
-        void runCurrentTest( std::string& redirectedCout, std::string& redirectedCerr );
-        void invokeActiveTestCase();
-
-        void resetAssertionInfo();
-        bool testForMissingAssertions( Counts& assertions );
-
-        void assertionEnded( AssertionResult const& result );
-        void reportExpr
-                (   AssertionInfo const &info,
-                    ResultWas::OfType resultType,
-                    ITransientExpression const *expr,
-                    bool negated );
-
-        void populateReaction( AssertionReaction& reaction );
-
-    private:
-
-        void handleUnfinishedSections();
-
-        TestRunInfo m_runInfo;
-        IMutableContext& m_context;
-        TestCase const* m_activeTestCase = nullptr;
-        ITracker* m_testCaseTracker;
-        Option<AssertionResult> m_lastResult;
-
-        IConfigPtr m_config;
-        Totals m_totals;
-        IStreamingReporterPtr m_reporter;
-        std::vector<MessageInfo> m_messages;
-        AssertionInfo m_lastAssertionInfo;
-        std::vector<SectionEndInfo> m_unfinishedSections;
-        std::vector<ITracker*> m_activeSections;
-        TrackerContext m_trackerContext;
-        bool m_lastAssertionPassed = false;
-        bool m_shouldReportUnexpected = true;
-        bool m_includeSuccessfulResults;
-    };
-
-} // end namespace Catch
-
-// end catch_run_context.h
-namespace Catch {
-
-    auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
-        expr.streamReconstructedExpression( os );
-        return os;
-    }
-
-    LazyExpression::LazyExpression( bool isNegated )
-    :   m_isNegated( isNegated )
-    {}
-
-    LazyExpression::LazyExpression( LazyExpression const& other ) : m_isNegated( other.m_isNegated ) {}
-
-    LazyExpression::operator bool() const {
-        return m_transientExpression != nullptr;
-    }
-
-    auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream& {
-        if( lazyExpr.m_isNegated )
-            os << "!";
-
-        if( lazyExpr ) {
-            if( lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression() )
-                os << "(" << *lazyExpr.m_transientExpression << ")";
-            else
-                os << *lazyExpr.m_transientExpression;
-        }
-        else {
-            os << "{** error - unchecked empty expression requested **}";
-        }
-        return os;
-    }
-
-    AssertionHandler::AssertionHandler
-        (   StringRef macroName,
-            SourceLineInfo const& lineInfo,
-            StringRef capturedExpression,
-            ResultDisposition::Flags resultDisposition )
-    :   m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition },
-        m_resultCapture( getResultCapture() )
-    {}
-
-    void AssertionHandler::handleExpr( ITransientExpression const& expr ) {
-        m_resultCapture.handleExpr( m_assertionInfo, expr, m_reaction );
-    }
-    void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef const& message) {
-        m_resultCapture.handleMessage( m_assertionInfo, resultType, message, m_reaction );
-    }
-
-    auto AssertionHandler::allowThrows() const -> bool {
-        return getCurrentContext().getConfig()->allowThrows();
-    }
-
-    void AssertionHandler::complete() {
-        setCompleted();
-        if( m_reaction.shouldDebugBreak ) {
-
-            // If you find your debugger stopping you here then go one level up on the
-            // call-stack for the code that caused it (typically a failed assertion)
-
-            // (To go back to the test and change execution, jump over the throw, next)
-            CATCH_BREAK_INTO_DEBUGGER();
-        }
-        if( m_reaction.shouldThrow )
-            throw Catch::TestFailureException();
-    }
-    void AssertionHandler::setCompleted() {
-        m_completed = true;
-    }
-
-    void AssertionHandler::handleUnexpectedInflightException() {
-        m_resultCapture.handleUnexpectedInflightException( m_assertionInfo, Catch::translateActiveException(), m_reaction );
-    }
-
-    void AssertionHandler::handleExceptionThrownAsExpected() {
-        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
-    }
-    void AssertionHandler::handleExceptionNotThrownAsExpected() {
-        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
-    }
-
-    void AssertionHandler::handleUnexpectedExceptionNotThrown() {
-        m_resultCapture.handleUnexpectedExceptionNotThrown( m_assertionInfo, m_reaction );
-    }
-
-    void AssertionHandler::handleThrowingCallSkipped() {
-        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
-    }
-
-    // This is the overload that takes a string and infers the Equals matcher from it
-    // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
-    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString  ) {
-        handleExceptionMatchExpr( handler, Matchers::Equals( str ), matcherString );
-    }
-
-} // namespace Catch
-// end catch_assertionhandler.cpp
-// start catch_assertionresult.cpp
-
-namespace Catch {
-    AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression):
-        lazyExpression(_lazyExpression),
-        resultType(_resultType) {}
-
-    std::string AssertionResultData::reconstructExpression() const {
-
-        if( reconstructedExpression.empty() ) {
-            if( lazyExpression ) {
-                ReusableStringStream rss;
-                rss << lazyExpression;
-                reconstructedExpression = rss.str();
-            }
-        }
-        return reconstructedExpression;
-    }
-
-    AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData const& data )
-    :   m_info( info ),
-        m_resultData( data )
-    {}
-
-    // Result was a success
-    bool AssertionResult::succeeded() const {
-        return Catch::isOk( m_resultData.resultType );
-    }
-
-    // Result was a success, or failure is suppressed
-    bool AssertionResult::isOk() const {
-        return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
-    }
-
-    ResultWas::OfType AssertionResult::getResultType() const {
-        return m_resultData.resultType;
-    }
-
-    bool AssertionResult::hasExpression() const {
-        return m_info.capturedExpression[0] != 0;
-    }
-
-    bool AssertionResult::hasMessage() const {
-        return !m_resultData.message.empty();
-    }
-
-    std::string AssertionResult::getExpression() const {
-        if( isFalseTest( m_info.resultDisposition ) )
-            return "!(" + m_info.capturedExpression + ")";
-        else
-            return m_info.capturedExpression;
-    }
-
-    std::string AssertionResult::getExpressionInMacro() const {
-        std::string expr;
-        if( m_info.macroName[0] == 0 )
-            expr = m_info.capturedExpression;
-        else {
-            expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
-            expr += m_info.macroName;
-            expr += "( ";
-            expr += m_info.capturedExpression;
-            expr += " )";
-        }
-        return expr;
-    }
-
-    bool AssertionResult::hasExpandedExpression() const {
-        return hasExpression() && getExpandedExpression() != getExpression();
-    }
-
-    std::string AssertionResult::getExpandedExpression() const {
-        std::string expr = m_resultData.reconstructExpression();
-        return expr.empty()
-                ? getExpression()
-                : expr;
-    }
-
-    std::string AssertionResult::getMessage() const {
-        return m_resultData.message;
-    }
-    SourceLineInfo AssertionResult::getSourceInfo() const {
-        return m_info.lineInfo;
-    }
-
-    StringRef AssertionResult::getTestMacroName() const {
-        return m_info.macroName;
-    }
-
-} // end namespace Catch
-// end catch_assertionresult.cpp
-// start catch_benchmark.cpp
-
-namespace Catch {
-
-    auto BenchmarkLooper::getResolution() -> uint64_t {
-        return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
-    }
-
-    void BenchmarkLooper::reportStart() {
-        getResultCapture().benchmarkStarting( { m_name } );
-    }
-    auto BenchmarkLooper::needsMoreIterations() -> bool {
-        auto elapsed = m_timer.getElapsedNanoseconds();
-
-        // Exponentially increasing iterations until we're confident in our timer resolution
-        if( elapsed < m_resolution ) {
-            m_iterationsToRun *= 10;
-            return true;
-        }
-
-        getResultCapture().benchmarkEnded( { { m_name }, m_count, elapsed } );
-        return false;
-    }
-
-} // end namespace Catch
-// end catch_benchmark.cpp
-// start catch_capture_matchers.cpp
-
-namespace Catch {
-
-    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
-
-    // This is the general overload that takes a any string matcher
-    // There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
-    // the Equals matcher (so the header does not mention matchers)
-    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  ) {
-        std::string exceptionMessage = Catch::translateActiveException();
-        MatchExpr<std::string, StringMatcher const&> expr( exceptionMessage, matcher, matcherString );
-        handler.handleExpr( expr );
-    }
-
-} // namespace Catch
-// end catch_capture_matchers.cpp
-// start catch_commandline.cpp
-
-// start catch_commandline.h
-
-// start catch_clara.h
-
-// Use Catch's value for console width (store Clara's off to the side, if present)
-#ifdef CLARA_CONFIG_CONSOLE_WIDTH
-#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
-#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
-#endif
-#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH-1
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wweak-vtables"
-#pragma clang diagnostic ignored "-Wexit-time-destructors"
-#pragma clang diagnostic ignored "-Wshadow"
-#endif
-
-// start clara.hpp
-// Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-// See https://github.com/philsquared/Clara for more details
-
-// Clara v1.1.4
-
-
-#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
-#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
-#endif
-
-#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
-#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
-#endif
-
-#ifndef CLARA_CONFIG_OPTIONAL_TYPE
-#ifdef __has_include
-#if __has_include(<optional>) && __cplusplus >= 201703L
-#include <optional>
-#define CLARA_CONFIG_OPTIONAL_TYPE std::optional
-#endif
-#endif
-#endif
-
-// ----------- #included from clara_textflow.hpp -----------
-
-// TextFlowCpp
-//
-// A single-header library for wrapping and laying out basic text, by Phil Nash
-//
-// This work is licensed under the BSD 2-Clause license.
-// See the accompanying LICENSE file, or the one at https://opensource.org/licenses/BSD-2-Clause
-//
-// This project is hosted at https://github.com/philsquared/textflowcpp
-
-
-#include <cassert>
-#include <ostream>
-#include <sstream>
-#include <vector>
-
-#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
-#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
-#endif
-
-namespace Catch { namespace clara { namespace TextFlow {
-
-    inline auto isWhitespace( char c ) -> bool {
-        static std::string chars = " \t\n\r";
-        return chars.find( c ) != std::string::npos;
-    }
-    inline auto isBreakableBefore( char c ) -> bool {
-        static std::string chars = "[({<|";
-        return chars.find( c ) != std::string::npos;
-    }
-    inline auto isBreakableAfter( char c ) -> bool {
-        static std::string chars = "])}>.,:;*+-=&/\\";
-        return chars.find( c ) != std::string::npos;
-    }
-
-    class Columns;
-
-    class Column {
-        std::vector<std::string> m_strings;
-        size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
-        size_t m_indent = 0;
-        size_t m_initialIndent = std::string::npos;
-
-    public:
-        class iterator {
-            friend Column;
-
-            Column const& m_column;
-            size_t m_stringIndex = 0;
-            size_t m_pos = 0;
-
-            size_t m_len = 0;
-            size_t m_end = 0;
-            bool m_suffix = false;
-
-            iterator( Column const& column, size_t stringIndex )
-            :   m_column( column ),
-                m_stringIndex( stringIndex )
-            {}
-
-            auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }
-
-            auto isBoundary( size_t at ) const -> bool {
-                assert( at > 0 );
-                assert( at <= line().size() );
-
-                return at == line().size() ||
-                       ( isWhitespace( line()[at] ) && !isWhitespace( line()[at-1] ) ) ||
-                       isBreakableBefore( line()[at] ) ||
-                       isBreakableAfter( line()[at-1] );
-            }
-
-            void calcLength() {
-                assert( m_stringIndex < m_column.m_strings.size() );
-
-                m_suffix = false;
-                auto width = m_column.m_width-indent();
-                m_end = m_pos;
-                while( m_end < line().size() && line()[m_end] != '\n' )
-                    ++m_end;
-
-                if( m_end < m_pos + width ) {
-                    m_len = m_end - m_pos;
-                }
-                else {
-                    size_t len = width;
-                    while (len > 0 && !isBoundary(m_pos + len))
-                        --len;
-                    while (len > 0 && isWhitespace( line()[m_pos + len - 1] ))
-                        --len;
-
-                    if (len > 0) {
-                        m_len = len;
-                    } else {
-                        m_suffix = true;
-                        m_len = width - 1;
-                    }
-                }
-            }
-
-            auto indent() const -> size_t {
-                auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
-                return initial == std::string::npos ? m_column.m_indent : initial;
-            }
-
-            auto addIndentAndSuffix(std::string const &plain) const -> std::string {
-                return std::string( indent(), ' ' ) + (m_suffix ? plain + "-" : plain);
-            }
-
-        public:
-            explicit iterator( Column const& column ) : m_column( column ) {
-                assert( m_column.m_width > m_column.m_indent );
-                assert( m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent );
-                calcLength();
-                if( m_len == 0 )
-                    m_stringIndex++; // Empty string
-            }
-
-            auto operator *() const -> std::string {
-                assert( m_stringIndex < m_column.m_strings.size() );
-                assert( m_pos <= m_end );
-                if( m_pos + m_column.m_width < m_end )
-                    return addIndentAndSuffix(line().substr(m_pos, m_len));
-                else
-                    return addIndentAndSuffix(line().substr(m_pos, m_end - m_pos));
-            }
-
-            auto operator ++() -> iterator& {
-                m_pos += m_len;
-                if( m_pos < line().size() && line()[m_pos] == '\n' )
-                    m_pos += 1;
-                else
-                    while( m_pos < line().size() && isWhitespace( line()[m_pos] ) )
-                        ++m_pos;
-
-                if( m_pos == line().size() ) {
-                    m_pos = 0;
-                    ++m_stringIndex;
-                }
-                if( m_stringIndex < m_column.m_strings.size() )
-                    calcLength();
-                return *this;
-            }
-            auto operator ++(int) -> iterator {
-                iterator prev( *this );
-                operator++();
-                return prev;
-            }
-
-            auto operator ==( iterator const& other ) const -> bool {
-                return
-                    m_pos == other.m_pos &&
-                    m_stringIndex == other.m_stringIndex &&
-                    &m_column == &other.m_column;
-            }
-            auto operator !=( iterator const& other ) const -> bool {
-                return !operator==( other );
-            }
-        };
-        using const_iterator = iterator;
-
-        explicit Column( std::string const& text ) { m_strings.push_back( text ); }
-
-        auto width( size_t newWidth ) -> Column& {
-            assert( newWidth > 0 );
-            m_width = newWidth;
-            return *this;
-        }
-        auto indent( size_t newIndent ) -> Column& {
-            m_indent = newIndent;
-            return *this;
-        }
-        auto initialIndent( size_t newIndent ) -> Column& {
-            m_initialIndent = newIndent;
-            return *this;
-        }
-
-        auto width() const -> size_t { return m_width; }
-        auto begin() const -> iterator { return iterator( *this ); }
-        auto end() const -> iterator { return { *this, m_strings.size() }; }
-
-        inline friend std::ostream& operator << ( std::ostream& os, Column const& col ) {
-            bool first = true;
-            for( auto line : col ) {
-                if( first )
-                    first = false;
-                else
-                    os << "\n";
-                os <<  line;
-            }
-            return os;
-        }
-
-        auto operator + ( Column const& other ) -> Columns;
-
-        auto toString() const -> std::string {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-    };
-
-    class Spacer : public Column {
-
-    public:
-        explicit Spacer( size_t spaceWidth ) : Column( "" ) {
-            width( spaceWidth );
-        }
-    };
-
-    class Columns {
-        std::vector<Column> m_columns;
-
-    public:
-
-        class iterator {
-            friend Columns;
-            struct EndTag {};
-
-            std::vector<Column> const& m_columns;
-            std::vector<Column::iterator> m_iterators;
-            size_t m_activeIterators;
-
-            iterator( Columns const& columns, EndTag )
-            :   m_columns( columns.m_columns ),
-                m_activeIterators( 0 )
-            {
-                m_iterators.reserve( m_columns.size() );
-
-                for( auto const& col : m_columns )
-                    m_iterators.push_back( col.end() );
-            }
-
-        public:
-            explicit iterator( Columns const& columns )
-            :   m_columns( columns.m_columns ),
-                m_activeIterators( m_columns.size() )
-            {
-                m_iterators.reserve( m_columns.size() );
-
-                for( auto const& col : m_columns )
-                    m_iterators.push_back( col.begin() );
-            }
-
-            auto operator ==( iterator const& other ) const -> bool {
-                return m_iterators == other.m_iterators;
-            }
-            auto operator !=( iterator const& other ) const -> bool {
-                return m_iterators != other.m_iterators;
-            }
-            auto operator *() const -> std::string {
-                std::string row, padding;
-
-                for( size_t i = 0; i < m_columns.size(); ++i ) {
-                    auto width = m_columns[i].width();
-                    if( m_iterators[i] != m_columns[i].end() ) {
-                        std::string col = *m_iterators[i];
-                        row += padding + col;
-                        if( col.size() < width )
-                            padding = std::string( width - col.size(), ' ' );
-                        else
-                            padding = "";
-                    }
-                    else {
-                        padding += std::string( width, ' ' );
-                    }
-                }
-                return row;
-            }
-            auto operator ++() -> iterator& {
-                for( size_t i = 0; i < m_columns.size(); ++i ) {
-                    if (m_iterators[i] != m_columns[i].end())
-                        ++m_iterators[i];
-                }
-                return *this;
-            }
-            auto operator ++(int) -> iterator {
-                iterator prev( *this );
-                operator++();
-                return prev;
-            }
-        };
-        using const_iterator = iterator;
-
-        auto begin() const -> iterator { return iterator( *this ); }
-        auto end() const -> iterator { return { *this, iterator::EndTag() }; }
-
-        auto operator += ( Column const& col ) -> Columns& {
-            m_columns.push_back( col );
-            return *this;
-        }
-        auto operator + ( Column const& col ) -> Columns {
-            Columns combined = *this;
-            combined += col;
-            return combined;
-        }
-
-        inline friend std::ostream& operator << ( std::ostream& os, Columns const& cols ) {
-
-            bool first = true;
-            for( auto line : cols ) {
-                if( first )
-                    first = false;
-                else
-                    os << "\n";
-                os << line;
-            }
-            return os;
-        }
-
-        auto toString() const -> std::string {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-    };
-
-    inline auto Column::operator + ( Column const& other ) -> Columns {
-        Columns cols;
-        cols += *this;
-        cols += other;
-        return cols;
-    }
-}}} // namespace Catch::clara::TextFlow
-
-// ----------- end of #include from clara_textflow.hpp -----------
-// ........... back in clara.hpp
-
-#include <memory>
-#include <set>
-#include <algorithm>
-
-#if !defined(CATCH_PLATFORM_WINDOWS) && ( defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) )
-#define CATCH_PLATFORM_WINDOWS
-#endif
-
-namespace Catch { namespace clara {
-namespace detail {
-
-    // Traits for extracting arg and return type of lambdas (for single argument lambdas)
-    template<typename L>
-    struct UnaryLambdaTraits : UnaryLambdaTraits<decltype( &L::operator() )> {};
-
-    template<typename ClassT, typename ReturnT, typename... Args>
-    struct UnaryLambdaTraits<ReturnT( ClassT::* )( Args... ) const> {
-        static const bool isValid = false;
-    };
-
-    template<typename ClassT, typename ReturnT, typename ArgT>
-    struct UnaryLambdaTraits<ReturnT( ClassT::* )( ArgT ) const> {
-        static const bool isValid = true;
-        using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;
-        using ReturnType = ReturnT;
-    };
-
-    class TokenStream;
-
-    // Transport for raw args (copied from main args, or supplied via init list for testing)
-    class Args {
-        friend TokenStream;
-        std::string m_exeName;
-        std::vector<std::string> m_args;
-
-    public:
-        Args( int argc, char const* const* argv )
-            : m_exeName(argv[0]),
-              m_args(argv + 1, argv + argc) {}
-
-        Args( std::initializer_list<std::string> args )
-        :   m_exeName( *args.begin() ),
-            m_args( args.begin()+1, args.end() )
-        {}
-
-        auto exeName() const -> std::string {
-            return m_exeName;
-        }
-    };
-
-    // Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
-    // may encode an option + its argument if the : or = form is used
-    enum class TokenType {
-        Option, Argument
-    };
-    struct Token {
-        TokenType type;
-        std::string token;
-    };
-
-    inline auto isOptPrefix( char c ) -> bool {
-        return c == '-'
-#ifdef CATCH_PLATFORM_WINDOWS
-            || c == '/'
-#endif
-        ;
-    }
-
-    // Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
-    class TokenStream {
-        using Iterator = std::vector<std::string>::const_iterator;
-        Iterator it;
-        Iterator itEnd;
-        std::vector<Token> m_tokenBuffer;
-
-        void loadBuffer() {
-            m_tokenBuffer.resize( 0 );
-
-            // Skip any empty strings
-            while( it != itEnd && it->empty() )
-                ++it;
-
-            if( it != itEnd ) {
-                auto const &next = *it;
-                if( isOptPrefix( next[0] ) ) {
-                    auto delimiterPos = next.find_first_of( " :=" );
-                    if( delimiterPos != std::string::npos ) {
-                        m_tokenBuffer.push_back( { TokenType::Option, next.substr( 0, delimiterPos ) } );
-                        m_tokenBuffer.push_back( { TokenType::Argument, next.substr( delimiterPos + 1 ) } );
-                    } else {
-                        if( next[1] != '-' && next.size() > 2 ) {
-                            std::string opt = "- ";
-                            for( size_t i = 1; i < next.size(); ++i ) {
-                                opt[1] = next[i];
-                                m_tokenBuffer.push_back( { TokenType::Option, opt } );
-                            }
-                        } else {
-                            m_tokenBuffer.push_back( { TokenType::Option, next } );
-                        }
-                    }
-                } else {
-                    m_tokenBuffer.push_back( { TokenType::Argument, next } );
-                }
-            }
-        }
-
-    public:
-        explicit TokenStream( Args const &args ) : TokenStream( args.m_args.begin(), args.m_args.end() ) {}
-
-        TokenStream( Iterator it, Iterator itEnd ) : it( it ), itEnd( itEnd ) {
-            loadBuffer();
-        }
-
-        explicit operator bool() const {
-            return !m_tokenBuffer.empty() || it != itEnd;
-        }
-
-        auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }
-
-        auto operator*() const -> Token {
-            assert( !m_tokenBuffer.empty() );
-            return m_tokenBuffer.front();
-        }
-
-        auto operator->() const -> Token const * {
-            assert( !m_tokenBuffer.empty() );
-            return &m_tokenBuffer.front();
-        }
-
-        auto operator++() -> TokenStream & {
-            if( m_tokenBuffer.size() >= 2 ) {
-                m_tokenBuffer.erase( m_tokenBuffer.begin() );
-            } else {
-                if( it != itEnd )
-                    ++it;
-                loadBuffer();
-            }
-            return *this;
-        }
-    };
-
-    class ResultBase {
-    public:
-        enum Type {
-            Ok, LogicError, RuntimeError
-        };
-
-    protected:
-        ResultBase( Type type ) : m_type( type ) {}
-        virtual ~ResultBase() = default;
-
-        virtual void enforceOk() const = 0;
-
-        Type m_type;
-    };
-
-    template<typename T>
-    class ResultValueBase : public ResultBase {
-    public:
-        auto value() const -> T const & {
-            enforceOk();
-            return m_value;
-        }
-
-    protected:
-        ResultValueBase( Type type ) : ResultBase( type ) {}
-
-        ResultValueBase( ResultValueBase const &other ) : ResultBase( other ) {
-            if( m_type == ResultBase::Ok )
-                new( &m_value ) T( other.m_value );
-        }
-
-        ResultValueBase( Type, T const &value ) : ResultBase( Ok ) {
-            new( &m_value ) T( value );
-        }
-
-        auto operator=( ResultValueBase const &other ) -> ResultValueBase & {
-            if( m_type == ResultBase::Ok )
-                m_value.~T();
-            ResultBase::operator=(other);
-            if( m_type == ResultBase::Ok )
-                new( &m_value ) T( other.m_value );
-            return *this;
-        }
-
-        ~ResultValueBase() override {
-            if( m_type == Ok )
-                m_value.~T();
-        }
-
-        union {
-            T m_value;
-        };
-    };
-
-    template<>
-    class ResultValueBase<void> : public ResultBase {
-    protected:
-        using ResultBase::ResultBase;
-    };
-
-    template<typename T = void>
-    class BasicResult : public ResultValueBase<T> {
-    public:
-        template<typename U>
-        explicit BasicResult( BasicResult<U> const &other )
-        :   ResultValueBase<T>( other.type() ),
-            m_errorMessage( other.errorMessage() )
-        {
-            assert( type() != ResultBase::Ok );
-        }
-
-        template<typename U>
-        static auto ok( U const &value ) -> BasicResult { return { ResultBase::Ok, value }; }
-        static auto ok() -> BasicResult { return { ResultBase::Ok }; }
-        static auto logicError( std::string const &message ) -> BasicResult { return { ResultBase::LogicError, message }; }
-        static auto runtimeError( std::string const &message ) -> BasicResult { return { ResultBase::RuntimeError, message }; }
-
-        explicit operator bool() const { return m_type == ResultBase::Ok; }
-        auto type() const -> ResultBase::Type { return m_type; }
-        auto errorMessage() const -> std::string { return m_errorMessage; }
-
-    protected:
-        void enforceOk() const override {
-
-            // Errors shouldn't reach this point, but if they do
-            // the actual error message will be in m_errorMessage
-            assert( m_type != ResultBase::LogicError );
-            assert( m_type != ResultBase::RuntimeError );
-            if( m_type != ResultBase::Ok )
-                std::abort();
-        }
-
-        std::string m_errorMessage; // Only populated if resultType is an error
-
-        BasicResult( ResultBase::Type type, std::string const &message )
-        :   ResultValueBase<T>(type),
-            m_errorMessage(message)
-        {
-            assert( m_type != ResultBase::Ok );
-        }
-
-        using ResultValueBase<T>::ResultValueBase;
-        using ResultBase::m_type;
-    };
-
-    enum class ParseResultType {
-        Matched, NoMatch, ShortCircuitAll, ShortCircuitSame
-    };
-
-    class ParseState {
-    public:
-
-        ParseState( ParseResultType type, TokenStream const &remainingTokens )
-        : m_type(type),
-          m_remainingTokens( remainingTokens )
-        {}
-
-        auto type() const -> ParseResultType { return m_type; }
-        auto remainingTokens() const -> TokenStream { return m_remainingTokens; }
-
-    private:
-        ParseResultType m_type;
-        TokenStream m_remainingTokens;
-    };
-
-    using Result = BasicResult<void>;
-    using ParserResult = BasicResult<ParseResultType>;
-    using InternalParseResult = BasicResult<ParseState>;
-
-    struct HelpColumns {
-        std::string left;
-        std::string right;
-    };
-
-    template<typename T>
-    inline auto convertInto( std::string const &source, T& target ) -> ParserResult {
-        std::stringstream ss;
-        ss << source;
-        ss >> target;
-        if( ss.fail() )
-            return ParserResult::runtimeError( "Unable to convert '" + source + "' to destination type" );
-        else
-            return ParserResult::ok( ParseResultType::Matched );
-    }
-    inline auto convertInto( std::string const &source, std::string& target ) -> ParserResult {
-        target = source;
-        return ParserResult::ok( ParseResultType::Matched );
-    }
-    inline auto convertInto( std::string const &source, bool &target ) -> ParserResult {
-        std::string srcLC = source;
-        std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( char c ) { return static_cast<char>( ::tolower(c) ); } );
-        if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
-            target = true;
-        else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
-            target = false;
-        else
-            return ParserResult::runtimeError( "Expected a boolean value but did not recognise: '" + source + "'" );
-        return ParserResult::ok( ParseResultType::Matched );
-    }
-#ifdef CLARA_CONFIG_OPTIONAL_TYPE
-    template<typename T>
-    inline auto convertInto( std::string const &source, CLARA_CONFIG_OPTIONAL_TYPE<T>& target ) -> ParserResult {
-        T temp;
-        auto result = convertInto( source, temp );
-        if( result )
-            target = std::move(temp);
-        return result;
-    }
-#endif // CLARA_CONFIG_OPTIONAL_TYPE
-
-    struct NonCopyable {
-        NonCopyable() = default;
-        NonCopyable( NonCopyable const & ) = delete;
-        NonCopyable( NonCopyable && ) = delete;
-        NonCopyable &operator=( NonCopyable const & ) = delete;
-        NonCopyable &operator=( NonCopyable && ) = delete;
-    };
-
-    struct BoundRef : NonCopyable {
-        virtual ~BoundRef() = default;
-        virtual auto isContainer() const -> bool { return false; }
-        virtual auto isFlag() const -> bool { return false; }
-    };
-    struct BoundValueRefBase : BoundRef {
-        virtual auto setValue( std::string const &arg ) -> ParserResult = 0;
-    };
-    struct BoundFlagRefBase : BoundRef {
-        virtual auto setFlag( bool flag ) -> ParserResult = 0;
-        virtual auto isFlag() const -> bool { return true; }
-    };
-
-    template<typename T>
-    struct BoundValueRef : BoundValueRefBase {
-        T &m_ref;
-
-        explicit BoundValueRef( T &ref ) : m_ref( ref ) {}
-
-        auto setValue( std::string const &arg ) -> ParserResult override {
-            return convertInto( arg, m_ref );
-        }
-    };
-
-    template<typename T>
-    struct BoundValueRef<std::vector<T>> : BoundValueRefBase {
-        std::vector<T> &m_ref;
-
-        explicit BoundValueRef( std::vector<T> &ref ) : m_ref( ref ) {}
-
-        auto isContainer() const -> bool override { return true; }
-
-        auto setValue( std::string const &arg ) -> ParserResult override {
-            T temp;
-            auto result = convertInto( arg, temp );
-            if( result )
-                m_ref.push_back( temp );
-            return result;
-        }
-    };
-
-    struct BoundFlagRef : BoundFlagRefBase {
-        bool &m_ref;
-
-        explicit BoundFlagRef( bool &ref ) : m_ref( ref ) {}
-
-        auto setFlag( bool flag ) -> ParserResult override {
-            m_ref = flag;
-            return ParserResult::ok( ParseResultType::Matched );
-        }
-    };
-
-    template<typename ReturnType>
-    struct LambdaInvoker {
-        static_assert( std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult" );
-
-        template<typename L, typename ArgType>
-        static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
-            return lambda( arg );
-        }
-    };
-
-    template<>
-    struct LambdaInvoker<void> {
-        template<typename L, typename ArgType>
-        static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
-            lambda( arg );
-            return ParserResult::ok( ParseResultType::Matched );
-        }
-    };
-
-    template<typename ArgType, typename L>
-    inline auto invokeLambda( L const &lambda, std::string const &arg ) -> ParserResult {
-        ArgType temp{};
-        auto result = convertInto( arg, temp );
-        return !result
-           ? result
-           : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( lambda, temp );
-    }
-
-    template<typename L>
-    struct BoundLambda : BoundValueRefBase {
-        L m_lambda;
-
-        static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
-        explicit BoundLambda( L const &lambda ) : m_lambda( lambda ) {}
-
-        auto setValue( std::string const &arg ) -> ParserResult override {
-            return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>( m_lambda, arg );
-        }
-    };
-
-    template<typename L>
-    struct BoundFlagLambda : BoundFlagRefBase {
-        L m_lambda;
-
-        static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
-        static_assert( std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean" );
-
-        explicit BoundFlagLambda( L const &lambda ) : m_lambda( lambda ) {}
-
-        auto setFlag( bool flag ) -> ParserResult override {
-            return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( m_lambda, flag );
-        }
-    };
-
-    enum class Optionality { Optional, Required };
-
-    struct Parser;
-
-    class ParserBase {
-    public:
-        virtual ~ParserBase() = default;
-        virtual auto validate() const -> Result { return Result::ok(); }
-        virtual auto parse( std::string const& exeName, TokenStream const &tokens) const -> InternalParseResult  = 0;
-        virtual auto cardinality() const -> size_t { return 1; }
-
-        auto parse( Args const &args ) const -> InternalParseResult {
-            return parse( args.exeName(), TokenStream( args ) );
-        }
-    };
-
-    template<typename DerivedT>
-    class ComposableParserImpl : public ParserBase {
-    public:
-        template<typename T>
-        auto operator|( T const &other ) const -> Parser;
-
-		template<typename T>
-        auto operator+( T const &other ) const -> Parser;
-    };
-
-    // Common code and state for Args and Opts
-    template<typename DerivedT>
-    class ParserRefImpl : public ComposableParserImpl<DerivedT> {
-    protected:
-        Optionality m_optionality = Optionality::Optional;
-        std::shared_ptr<BoundRef> m_ref;
-        std::string m_hint;
-        std::string m_description;
-
-        explicit ParserRefImpl( std::shared_ptr<BoundRef> const &ref ) : m_ref( ref ) {}
-
-    public:
-        template<typename T>
-        ParserRefImpl( T &ref, std::string const &hint )
-        :   m_ref( std::make_shared<BoundValueRef<T>>( ref ) ),
-            m_hint( hint )
-        {}
-
-        template<typename LambdaT>
-        ParserRefImpl( LambdaT const &ref, std::string const &hint )
-        :   m_ref( std::make_shared<BoundLambda<LambdaT>>( ref ) ),
-            m_hint(hint)
-        {}
-
-        auto operator()( std::string const &description ) -> DerivedT & {
-            m_description = description;
-            return static_cast<DerivedT &>( *this );
-        }
-
-        auto optional() -> DerivedT & {
-            m_optionality = Optionality::Optional;
-            return static_cast<DerivedT &>( *this );
-        };
-
-        auto required() -> DerivedT & {
-            m_optionality = Optionality::Required;
-            return static_cast<DerivedT &>( *this );
-        };
-
-        auto isOptional() const -> bool {
-            return m_optionality == Optionality::Optional;
-        }
-
-        auto cardinality() const -> size_t override {
-            if( m_ref->isContainer() )
-                return 0;
-            else
-                return 1;
-        }
-
-        auto hint() const -> std::string { return m_hint; }
-    };
-
-    class ExeName : public ComposableParserImpl<ExeName> {
-        std::shared_ptr<std::string> m_name;
-        std::shared_ptr<BoundValueRefBase> m_ref;
-
-        template<typename LambdaT>
-        static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundValueRefBase> {
-            return std::make_shared<BoundLambda<LambdaT>>( lambda) ;
-        }
-
-    public:
-        ExeName() : m_name( std::make_shared<std::string>( "<executable>" ) ) {}
-
-        explicit ExeName( std::string &ref ) : ExeName() {
-            m_ref = std::make_shared<BoundValueRef<std::string>>( ref );
-        }
-
-        template<typename LambdaT>
-        explicit ExeName( LambdaT const& lambda ) : ExeName() {
-            m_ref = std::make_shared<BoundLambda<LambdaT>>( lambda );
-        }
-
-        // The exe name is not parsed out of the normal tokens, but is handled specially
-        auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
-            return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
-        }
-
-        auto name() const -> std::string { return *m_name; }
-        auto set( std::string const& newName ) -> ParserResult {
-
-            auto lastSlash = newName.find_last_of( "\\/" );
-            auto filename = ( lastSlash == std::string::npos )
-                    ? newName
-                    : newName.substr( lastSlash+1 );
-
-            *m_name = filename;
-            if( m_ref )
-                return m_ref->setValue( filename );
-            else
-                return ParserResult::ok( ParseResultType::Matched );
-        }
-    };
-
-    class Arg : public ParserRefImpl<Arg> {
-    public:
-        using ParserRefImpl::ParserRefImpl;
-
-        auto parse( std::string const &, TokenStream const &tokens ) const -> InternalParseResult override {
-            auto validationResult = validate();
-            if( !validationResult )
-                return InternalParseResult( validationResult );
-
-            auto remainingTokens = tokens;
-            auto const &token = *remainingTokens;
-            if( token.type != TokenType::Argument )
-                return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
-
-            assert( !m_ref->isFlag() );
-            auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );
-
-            auto result = valueRef->setValue( remainingTokens->token );
-            if( !result )
-                return InternalParseResult( result );
-            else
-                return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
-        }
-    };
-
-    inline auto normaliseOpt( std::string const &optName ) -> std::string {
-#ifdef CATCH_PLATFORM_WINDOWS
-        if( optName[0] == '/' )
-            return "-" + optName.substr( 1 );
-        else
-#endif
-            return optName;
-    }
-
-    class Opt : public ParserRefImpl<Opt> {
-    protected:
-        std::vector<std::string> m_optNames;
-
-    public:
-        template<typename LambdaT>
-        explicit Opt( LambdaT const &ref ) : ParserRefImpl( std::make_shared<BoundFlagLambda<LambdaT>>( ref ) ) {}
-
-        explicit Opt( bool &ref ) : ParserRefImpl( std::make_shared<BoundFlagRef>( ref ) ) {}
-
-        template<typename LambdaT>
-        Opt( LambdaT const &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
-
-        template<typename T>
-        Opt( T &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
-
-        auto operator[]( std::string const &optName ) -> Opt & {
-            m_optNames.push_back( optName );
-            return *this;
-        }
-
-        auto getHelpColumns() const -> std::vector<HelpColumns> {
-            std::ostringstream oss;
-            bool first = true;
-            for( auto const &opt : m_optNames ) {
-                if (first)
-                    first = false;
-                else
-                    oss << ", ";
-                oss << opt;
-            }
-            if( !m_hint.empty() )
-                oss << " <" << m_hint << ">";
-            return { { oss.str(), m_description } };
-        }
-
-        auto isMatch( std::string const &optToken ) const -> bool {
-            auto normalisedToken = normaliseOpt( optToken );
-            for( auto const &name : m_optNames ) {
-                if( normaliseOpt( name ) == normalisedToken )
-                    return true;
-            }
-            return false;
-        }
-
-        using ParserBase::parse;
-
-        auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
-            auto validationResult = validate();
-            if( !validationResult )
-                return InternalParseResult( validationResult );
-
-            auto remainingTokens = tokens;
-            if( remainingTokens && remainingTokens->type == TokenType::Option ) {
-                auto const &token = *remainingTokens;
-                if( isMatch(token.token ) ) {
-                    if( m_ref->isFlag() ) {
-                        auto flagRef = static_cast<detail::BoundFlagRefBase*>( m_ref.get() );
-                        auto result = flagRef->setFlag( true );
-                        if( !result )
-                            return InternalParseResult( result );
-                        if( result.value() == ParseResultType::ShortCircuitAll )
-                            return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
-                    } else {
-                        auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );
-                        ++remainingTokens;
-                        if( !remainingTokens )
-                            return InternalParseResult::runtimeError( "Expected argument following " + token.token );
-                        auto const &argToken = *remainingTokens;
-                        if( argToken.type != TokenType::Argument )
-                            return InternalParseResult::runtimeError( "Expected argument following " + token.token );
-                        auto result = valueRef->setValue( argToken.token );
-                        if( !result )
-                            return InternalParseResult( result );
-                        if( result.value() == ParseResultType::ShortCircuitAll )
-                            return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
-                    }
-                    return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
-                }
-            }
-            return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
-        }
-
-        auto validate() const -> Result override {
-            if( m_optNames.empty() )
-                return Result::logicError( "No options supplied to Opt" );
-            for( auto const &name : m_optNames ) {
-                if( name.empty() )
-                    return Result::logicError( "Option name cannot be empty" );
-#ifdef CATCH_PLATFORM_WINDOWS
-                if( name[0] != '-' && name[0] != '/' )
-                    return Result::logicError( "Option name must begin with '-' or '/'" );
-#else
-                if( name[0] != '-' )
-                    return Result::logicError( "Option name must begin with '-'" );
-#endif
-            }
-            return ParserRefImpl::validate();
-        }
-    };
-
-    struct Help : Opt {
-        Help( bool &showHelpFlag )
-        :   Opt([&]( bool flag ) {
-                showHelpFlag = flag;
-                return ParserResult::ok( ParseResultType::ShortCircuitAll );
-            })
-        {
-            static_cast<Opt &>( *this )
-                    ("display usage information")
-                    ["-?"]["-h"]["--help"]
-                    .optional();
-        }
-    };
-
-    struct Parser : ParserBase {
-
-        mutable ExeName m_exeName;
-        std::vector<Opt> m_options;
-        std::vector<Arg> m_args;
-
-        auto operator|=( ExeName const &exeName ) -> Parser & {
-            m_exeName = exeName;
-            return *this;
-        }
-
-        auto operator|=( Arg const &arg ) -> Parser & {
-            m_args.push_back(arg);
-            return *this;
-        }
-
-        auto operator|=( Opt const &opt ) -> Parser & {
-            m_options.push_back(opt);
-            return *this;
-        }
-
-        auto operator|=( Parser const &other ) -> Parser & {
-            m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
-            m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
-            return *this;
-        }
-
-        template<typename T>
-        auto operator|( T const &other ) const -> Parser {
-            return Parser( *this ) |= other;
-        }
-
-        // Forward deprecated interface with '+' instead of '|'
-        template<typename T>
-        auto operator+=( T const &other ) -> Parser & { return operator|=( other ); }
-        template<typename T>
-        auto operator+( T const &other ) const -> Parser { return operator|( other ); }
-
-        auto getHelpColumns() const -> std::vector<HelpColumns> {
-            std::vector<HelpColumns> cols;
-            for (auto const &o : m_options) {
-                auto childCols = o.getHelpColumns();
-                cols.insert( cols.end(), childCols.begin(), childCols.end() );
-            }
-            return cols;
-        }
-
-        void writeToStream( std::ostream &os ) const {
-            if (!m_exeName.name().empty()) {
-                os << "usage:\n" << "  " << m_exeName.name() << " ";
-                bool required = true, first = true;
-                for( auto const &arg : m_args ) {
-                    if (first)
-                        first = false;
-                    else
-                        os << " ";
-                    if( arg.isOptional() && required ) {
-                        os << "[";
-                        required = false;
-                    }
-                    os << "<" << arg.hint() << ">";
-                    if( arg.cardinality() == 0 )
-                        os << " ... ";
-                }
-                if( !required )
-                    os << "]";
-                if( !m_options.empty() )
-                    os << " options";
-                os << "\n\nwhere options are:" << std::endl;
-            }
-
-            auto rows = getHelpColumns();
-            size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
-            size_t optWidth = 0;
-            for( auto const &cols : rows )
-                optWidth = (std::max)(optWidth, cols.left.size() + 2);
-
-            optWidth = (std::min)(optWidth, consoleWidth/2);
-
-            for( auto const &cols : rows ) {
-                auto row =
-                        TextFlow::Column( cols.left ).width( optWidth ).indent( 2 ) +
-                        TextFlow::Spacer(4) +
-                        TextFlow::Column( cols.right ).width( consoleWidth - 7 - optWidth );
-                os << row << std::endl;
-            }
-        }
-
-        friend auto operator<<( std::ostream &os, Parser const &parser ) -> std::ostream& {
-            parser.writeToStream( os );
-            return os;
-        }
-
-        auto validate() const -> Result override {
-            for( auto const &opt : m_options ) {
-                auto result = opt.validate();
-                if( !result )
-                    return result;
-            }
-            for( auto const &arg : m_args ) {
-                auto result = arg.validate();
-                if( !result )
-                    return result;
-            }
-            return Result::ok();
-        }
-
-        using ParserBase::parse;
-
-        auto parse( std::string const& exeName, TokenStream const &tokens ) const -> InternalParseResult override {
-
-            struct ParserInfo {
-                ParserBase const* parser = nullptr;
-                size_t count = 0;
-            };
-            const size_t totalParsers = m_options.size() + m_args.size();
-            assert( totalParsers < 512 );
-            // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
-            ParserInfo parseInfos[512];
-
-            {
-                size_t i = 0;
-                for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
-                for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
-            }
-
-            m_exeName.set( exeName );
-
-            auto result = InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
-            while( result.value().remainingTokens() ) {
-                bool tokenParsed = false;
-
-                for( size_t i = 0; i < totalParsers; ++i ) {
-                    auto&  parseInfo = parseInfos[i];
-                    if( parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality() ) {
-                        result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
-                        if (!result)
-                            return result;
-                        if (result.value().type() != ParseResultType::NoMatch) {
-                            tokenParsed = true;
-                            ++parseInfo.count;
-                            break;
-                        }
-                    }
-                }
-
-                if( result.value().type() == ParseResultType::ShortCircuitAll )
-                    return result;
-                if( !tokenParsed )
-                    return InternalParseResult::runtimeError( "Unrecognised token: " + result.value().remainingTokens()->token );
-            }
-            // !TBD Check missing required options
-            return result;
-        }
-    };
-
-    template<typename DerivedT>
-    template<typename T>
-    auto ComposableParserImpl<DerivedT>::operator|( T const &other ) const -> Parser {
-        return Parser() | static_cast<DerivedT const &>( *this ) | other;
-    }
-} // namespace detail
-
-// A Combined parser
-using detail::Parser;
-
-// A parser for options
-using detail::Opt;
-
-// A parser for arguments
-using detail::Arg;
-
-// Wrapper for argc, argv from main()
-using detail::Args;
-
-// Specifies the name of the executable
-using detail::ExeName;
-
-// Convenience wrapper for option parser that specifies the help option
-using detail::Help;
-
-// enum of result types from a parse
-using detail::ParseResultType;
-
-// Result type for parser operation
-using detail::ParserResult;
-
-}} // namespace Catch::clara
-
-// end clara.hpp
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// Restore Clara's value for console width, if present
-#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#endif
-
-// end catch_clara.h
-namespace Catch {
-
-    clara::Parser makeCommandLineParser( ConfigData& config );
-
-} // end namespace Catch
-
-// end catch_commandline.h
-#include <fstream>
-#include <ctime>
-
-namespace Catch {
-
-    clara::Parser makeCommandLineParser( ConfigData& config ) {
-
-        using namespace clara;
-
-        auto const setWarning = [&]( std::string const& warning ) {
-                auto warningSet = [&]() {
-                    if( warning == "NoAssertions" )
-                        return WarnAbout::NoAssertions;
-
-                    if ( warning == "NoTests" )
-                        return WarnAbout::NoTests;
-
-                    return WarnAbout::Nothing;
-                }();
-
-                if (warningSet == WarnAbout::Nothing)
-                    return ParserResult::runtimeError( "Unrecognised warning: '" + warning + "'" );
-                config.warnings = static_cast<WarnAbout::What>( config.warnings | warningSet );
-                return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const loadTestNamesFromFile = [&]( std::string const& filename ) {
-                std::ifstream f( filename.c_str() );
-                if( !f.is_open() )
-                    return ParserResult::runtimeError( "Unable to load input file: '" + filename + "'" );
-
-                std::string line;
-                while( std::getline( f, line ) ) {
-                    line = trim(line);
-                    if( !line.empty() && !startsWith( line, '#' ) ) {
-                        if( !startsWith( line, '"' ) )
-                            line = '"' + line + '"';
-                        config.testsOrTags.push_back( line + ',' );
-                    }
-                }
-                return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const setTestOrder = [&]( std::string const& order ) {
-                if( startsWith( "declared", order ) )
-                    config.runOrder = RunTests::InDeclarationOrder;
-                else if( startsWith( "lexical", order ) )
-                    config.runOrder = RunTests::InLexicographicalOrder;
-                else if( startsWith( "random", order ) )
-                    config.runOrder = RunTests::InRandomOrder;
-                else
-                    return clara::ParserResult::runtimeError( "Unrecognised ordering: '" + order + "'" );
-                return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const setRngSeed = [&]( std::string const& seed ) {
-                if( seed != "time" )
-                    return clara::detail::convertInto( seed, config.rngSeed );
-                config.rngSeed = static_cast<unsigned int>( std::time(nullptr) );
-                return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const setColourUsage = [&]( std::string const& useColour ) {
-                    auto mode = toLower( useColour );
-
-                    if( mode == "yes" )
-                        config.useColour = UseColour::Yes;
-                    else if( mode == "no" )
-                        config.useColour = UseColour::No;
-                    else if( mode == "auto" )
-                        config.useColour = UseColour::Auto;
-                    else
-                        return ParserResult::runtimeError( "colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised" );
-                return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const setWaitForKeypress = [&]( std::string const& keypress ) {
-                auto keypressLc = toLower( keypress );
-                if( keypressLc == "start" )
-                    config.waitForKeypress = WaitForKeypress::BeforeStart;
-                else if( keypressLc == "exit" )
-                    config.waitForKeypress = WaitForKeypress::BeforeExit;
-                else if( keypressLc == "both" )
-                    config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
-                else
-                    return ParserResult::runtimeError( "keypress argument must be one of: start, exit or both. '" + keypress + "' not recognised" );
-            return ParserResult::ok( ParseResultType::Matched );
-            };
-        auto const setVerbosity = [&]( std::string const& verbosity ) {
-            auto lcVerbosity = toLower( verbosity );
-            if( lcVerbosity == "quiet" )
-                config.verbosity = Verbosity::Quiet;
-            else if( lcVerbosity == "normal" )
-                config.verbosity = Verbosity::Normal;
-            else if( lcVerbosity == "high" )
-                config.verbosity = Verbosity::High;
-            else
-                return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + "'" );
-            return ParserResult::ok( ParseResultType::Matched );
-        };
-
-        auto cli
-            = ExeName( config.processName )
-            | Help( config.showHelp )
-            | Opt( config.listTests )
-                ["-l"]["--list-tests"]
-                ( "list all/matching test cases" )
-            | Opt( config.listTags )
-                ["-t"]["--list-tags"]
-                ( "list all/matching tags" )
-            | Opt( config.showSuccessfulTests )
-                ["-s"]["--success"]
-                ( "include successful tests in output" )
-            | Opt( config.shouldDebugBreak )
-                ["-b"]["--break"]
-                ( "break into debugger on failure" )
-            | Opt( config.noThrow )
-                ["-e"]["--nothrow"]
-                ( "skip exception tests" )
-            | Opt( config.showInvisibles )
-                ["-i"]["--invisibles"]
-                ( "show invisibles (tabs, newlines)" )
-            | Opt( config.outputFilename, "filename" )
-                ["-o"]["--out"]
-                ( "output filename" )
-            | Opt( config.reporterName, "name" )
-                ["-r"]["--reporter"]
-                ( "reporter to use (defaults to console)" )
-            | Opt( config.name, "name" )
-                ["-n"]["--name"]
-                ( "suite name" )
-            | Opt( [&]( bool ){ config.abortAfter = 1; } )
-                ["-a"]["--abort"]
-                ( "abort at first failure" )
-            | Opt( [&]( int x ){ config.abortAfter = x; }, "no. failures" )
-                ["-x"]["--abortx"]
-                ( "abort after x failures" )
-            | Opt( setWarning, "warning name" )
-                ["-w"]["--warn"]
-                ( "enable warnings" )
-            | Opt( [&]( bool flag ) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no" )
-                ["-d"]["--durations"]
-                ( "show test durations" )
-            | Opt( loadTestNamesFromFile, "filename" )
-                ["-f"]["--input-file"]
-                ( "load test names to run from a file" )
-            | Opt( config.filenamesAsTags )
-                ["-#"]["--filenames-as-tags"]
-                ( "adds a tag for the filename" )
-            | Opt( config.sectionsToRun, "section name" )
-                ["-c"]["--section"]
-                ( "specify section to run" )
-            | Opt( setVerbosity, "quiet|normal|high" )
-                ["-v"]["--verbosity"]
-                ( "set output verbosity" )
-            | Opt( config.listTestNamesOnly )
-                ["--list-test-names-only"]
-                ( "list all/matching test cases names only" )
-            | Opt( config.listReporters )
-                ["--list-reporters"]
-                ( "list all reporters" )
-            | Opt( setTestOrder, "decl|lex|rand" )
-                ["--order"]
-                ( "test case order (defaults to decl)" )
-            | Opt( setRngSeed, "'time'|number" )
-                ["--rng-seed"]
-                ( "set a specific seed for random numbers" )
-            | Opt( setColourUsage, "yes|no" )
-                ["--use-colour"]
-                ( "should output be colourised" )
-            | Opt( config.libIdentify )
-                ["--libidentify"]
-                ( "report name and version according to libidentify standard" )
-            | Opt( setWaitForKeypress, "start|exit|both" )
-                ["--wait-for-keypress"]
-                ( "waits for a keypress before exiting" )
-            | Opt( config.benchmarkResolutionMultiple, "multiplier" )
-                ["--benchmark-resolution-multiple"]
-                ( "multiple of clock resolution to run benchmarks" )
-
-            | Arg( config.testsOrTags, "test name|pattern|tags" )
-                ( "which test or tests to use" );
-
-        return cli;
-    }
-
-} // end namespace Catch
-// end catch_commandline.cpp
-// start catch_common.cpp
-
-#include <cstring>
-#include <ostream>
-
-namespace Catch {
-
-    bool SourceLineInfo::empty() const noexcept {
-        return file[0] == '\0';
-    }
-    bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
-        return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
-    }
-    bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
-        return line < other.line || ( line == other.line && (std::strcmp(file, other.file) < 0));
-    }
-
-    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
-#ifndef __GNUG__
-        os << info.file << '(' << info.line << ')';
-#else
-        os << info.file << ':' << info.line;
-#endif
-        return os;
-    }
-
-    std::string StreamEndStop::operator+() const {
-        return std::string();
-    }
-
-    NonCopyable::NonCopyable() = default;
-    NonCopyable::~NonCopyable() = default;
-
-}
-// end catch_common.cpp
-// start catch_config.cpp
-
-// start catch_enforce.h
-
-#include <stdexcept>
-
-#define CATCH_PREPARE_EXCEPTION( type, msg ) \
-    type( ( Catch::ReusableStringStream() << msg ).str() )
-#define CATCH_INTERNAL_ERROR( msg ) \
-    throw CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
-#define CATCH_ERROR( msg ) \
-    throw CATCH_PREPARE_EXCEPTION( std::domain_error, msg )
-#define CATCH_ENFORCE( condition, msg ) \
-    do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)
-
-// end catch_enforce.h
-namespace Catch {
-
-    Config::Config( ConfigData const& data )
-    :   m_data( data ),
-        m_stream( openStream() )
-    {
-        TestSpecParser parser(ITagAliasRegistry::get());
-        if (data.testsOrTags.empty()) {
-            parser.parse("~[.]"); // All not hidden tests
-        }
-        else {
-            m_hasTestFilters = true;
-            for( auto const& testOrTags : data.testsOrTags )
-                parser.parse( testOrTags );
-        }
-        m_testSpec = parser.testSpec();
-    }
-
-    std::string const& Config::getFilename() const {
-        return m_data.outputFilename ;
-    }
-
-    bool Config::listTests() const          { return m_data.listTests; }
-    bool Config::listTestNamesOnly() const  { return m_data.listTestNamesOnly; }
-    bool Config::listTags() const           { return m_data.listTags; }
-    bool Config::listReporters() const      { return m_data.listReporters; }
-
-    std::string Config::getProcessName() const { return m_data.processName; }
-    std::string const& Config::getReporterName() const { return m_data.reporterName; }
-
-    std::vector<std::string> const& Config::getTestsOrTags() const { return m_data.testsOrTags; }
-    std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }
-
-    TestSpec const& Config::testSpec() const { return m_testSpec; }
-    bool Config::hasTestFilters() const { return m_hasTestFilters; }
-
-    bool Config::showHelp() const { return m_data.showHelp; }
-
-    // IConfig interface
-    bool Config::allowThrows() const                   { return !m_data.noThrow; }
-    std::ostream& Config::stream() const               { return m_stream->stream(); }
-    std::string Config::name() const                   { return m_data.name.empty() ? m_data.processName : m_data.name; }
-    bool Config::includeSuccessfulResults() const      { return m_data.showSuccessfulTests; }
-    bool Config::warnAboutMissingAssertions() const    { return !!(m_data.warnings & WarnAbout::NoAssertions); }
-    bool Config::warnAboutNoTests() const              { return !!(m_data.warnings & WarnAbout::NoTests); }
-    ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
-    RunTests::InWhatOrder Config::runOrder() const     { return m_data.runOrder; }
-    unsigned int Config::rngSeed() const               { return m_data.rngSeed; }
-    int Config::benchmarkResolutionMultiple() const    { return m_data.benchmarkResolutionMultiple; }
-    UseColour::YesOrNo Config::useColour() const       { return m_data.useColour; }
-    bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
-    int Config::abortAfter() const                     { return m_data.abortAfter; }
-    bool Config::showInvisibles() const                { return m_data.showInvisibles; }
-    Verbosity Config::verbosity() const                { return m_data.verbosity; }
-
-    IStream const* Config::openStream() {
-        return Catch::makeStream(m_data.outputFilename);
-    }
-
-} // end namespace Catch
-// end catch_config.cpp
-// start catch_console_colour.cpp
-
-#if defined(__clang__)
-#    pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wexit-time-destructors"
-#endif
-
-// start catch_errno_guard.h
-
-namespace Catch {
-
-    class ErrnoGuard {
-    public:
-        ErrnoGuard();
-        ~ErrnoGuard();
-    private:
-        int m_oldErrno;
-    };
-
-}
-
-// end catch_errno_guard.h
-#include <sstream>
-
-namespace Catch {
-    namespace {
-
-        struct IColourImpl {
-            virtual ~IColourImpl() = default;
-            virtual void use( Colour::Code _colourCode ) = 0;
-        };
-
-        struct NoColourImpl : IColourImpl {
-            void use( Colour::Code ) {}
-
-            static IColourImpl* instance() {
-                static NoColourImpl s_instance;
-                return &s_instance;
-            }
-        };
-
-    } // anon namespace
-} // namespace Catch
-
-#if !defined( CATCH_CONFIG_COLOUR_NONE ) && !defined( CATCH_CONFIG_COLOUR_WINDOWS ) && !defined( CATCH_CONFIG_COLOUR_ANSI )
-#   ifdef CATCH_PLATFORM_WINDOWS
-#       define CATCH_CONFIG_COLOUR_WINDOWS
-#   else
-#       define CATCH_CONFIG_COLOUR_ANSI
-#   endif
-#endif
-
-#if defined ( CATCH_CONFIG_COLOUR_WINDOWS ) /////////////////////////////////////////
-
-namespace Catch {
-namespace {
-
-    class Win32ColourImpl : public IColourImpl {
-    public:
-        Win32ColourImpl() : stdoutHandle( GetStdHandle(STD_OUTPUT_HANDLE) )
-        {
-            CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
-            GetConsoleScreenBufferInfo( stdoutHandle, &csbiInfo );
-            originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
-            originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
-        }
-
-        virtual void use( Colour::Code _colourCode ) override {
-            switch( _colourCode ) {
-                case Colour::None:      return setTextAttribute( originalForegroundAttributes );
-                case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
-                case Colour::Red:       return setTextAttribute( FOREGROUND_RED );
-                case Colour::Green:     return setTextAttribute( FOREGROUND_GREEN );
-                case Colour::Blue:      return setTextAttribute( FOREGROUND_BLUE );
-                case Colour::Cyan:      return setTextAttribute( FOREGROUND_BLUE | FOREGROUND_GREEN );
-                case Colour::Yellow:    return setTextAttribute( FOREGROUND_RED | FOREGROUND_GREEN );
-                case Colour::Grey:      return setTextAttribute( 0 );
-
-                case Colour::LightGrey:     return setTextAttribute( FOREGROUND_INTENSITY );
-                case Colour::BrightRed:     return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED );
-                case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
-                case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
-                case Colour::BrightYellow:  return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN );
-
-                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
-
-                default:
-                    CATCH_ERROR( "Unknown colour requested" );
-            }
-        }
-
-    private:
-        void setTextAttribute( WORD _textAttribute ) {
-            SetConsoleTextAttribute( stdoutHandle, _textAttribute | originalBackgroundAttributes );
-        }
-        HANDLE stdoutHandle;
-        WORD originalForegroundAttributes;
-        WORD originalBackgroundAttributes;
-    };
-
-    IColourImpl* platformColourInstance() {
-        static Win32ColourImpl s_instance;
-
-        IConfigPtr config = getCurrentContext().getConfig();
-        UseColour::YesOrNo colourMode = config
-            ? config->useColour()
-            : UseColour::Auto;
-        if( colourMode == UseColour::Auto )
-            colourMode = UseColour::Yes;
-        return colourMode == UseColour::Yes
-            ? &s_instance
-            : NoColourImpl::instance();
-    }
-
-} // end anon namespace
-} // end namespace Catch
-
-#elif defined( CATCH_CONFIG_COLOUR_ANSI ) //////////////////////////////////////
-
-#include <unistd.h>
-
-namespace Catch {
-namespace {
-
-    // use POSIX/ ANSI console terminal codes
-    // Thanks to Adam Strzelecki for original contribution
-    // (http://github.com/nanoant)
-    // https://github.com/philsquared/Catch/pull/131
-    class PosixColourImpl : public IColourImpl {
-    public:
-        virtual void use( Colour::Code _colourCode ) override {
-            switch( _colourCode ) {
-                case Colour::None:
-                case Colour::White:     return setColour( "[0m" );
-                case Colour::Red:       return setColour( "[0;31m" );
-                case Colour::Green:     return setColour( "[0;32m" );
-                case Colour::Blue:      return setColour( "[0;34m" );
-                case Colour::Cyan:      return setColour( "[0;36m" );
-                case Colour::Yellow:    return setColour( "[0;33m" );
-                case Colour::Grey:      return setColour( "[1;30m" );
-
-                case Colour::LightGrey:     return setColour( "[0;37m" );
-                case Colour::BrightRed:     return setColour( "[1;31m" );
-                case Colour::BrightGreen:   return setColour( "[1;32m" );
-                case Colour::BrightWhite:   return setColour( "[1;37m" );
-                case Colour::BrightYellow:  return setColour( "[1;33m" );
-
-                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
-                default: CATCH_INTERNAL_ERROR( "Unknown colour requested" );
-            }
-        }
-        static IColourImpl* instance() {
-            static PosixColourImpl s_instance;
-            return &s_instance;
-        }
-
-    private:
-        void setColour( const char* _escapeCode ) {
-            Catch::cout() << '\033' << _escapeCode;
-        }
-    };
-
-    bool useColourOnPlatform() {
-        return
-#ifdef CATCH_PLATFORM_MAC
-            !isDebuggerActive() &&
-#endif
-#if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
-            isatty(STDOUT_FILENO)
-#else
-            false
-#endif
-            ;
-    }
-    IColourImpl* platformColourInstance() {
-        ErrnoGuard guard;
-        IConfigPtr config = getCurrentContext().getConfig();
-        UseColour::YesOrNo colourMode = config
-            ? config->useColour()
-            : UseColour::Auto;
-        if( colourMode == UseColour::Auto )
-            colourMode = useColourOnPlatform()
-                ? UseColour::Yes
-                : UseColour::No;
-        return colourMode == UseColour::Yes
-            ? PosixColourImpl::instance()
-            : NoColourImpl::instance();
-    }
-
-} // end anon namespace
-} // end namespace Catch
-
-#else  // not Windows or ANSI ///////////////////////////////////////////////
-
-namespace Catch {
-
-    static IColourImpl* platformColourInstance() { return NoColourImpl::instance(); }
-
-} // end namespace Catch
-
-#endif // Windows/ ANSI/ None
-
-namespace Catch {
-
-    Colour::Colour( Code _colourCode ) { use( _colourCode ); }
-    Colour::Colour( Colour&& rhs ) noexcept {
-        m_moved = rhs.m_moved;
-        rhs.m_moved = true;
-    }
-    Colour& Colour::operator=( Colour&& rhs ) noexcept {
-        m_moved = rhs.m_moved;
-        rhs.m_moved  = true;
-        return *this;
-    }
-
-    Colour::~Colour(){ if( !m_moved ) use( None ); }
-
-    void Colour::use( Code _colourCode ) {
-        static IColourImpl* impl = platformColourInstance();
-        impl->use( _colourCode );
-    }
-
-    std::ostream& operator << ( std::ostream& os, Colour const& ) {
-        return os;
-    }
-
-} // end namespace Catch
-
-#if defined(__clang__)
-#    pragma clang diagnostic pop
-#endif
-
-// end catch_console_colour.cpp
-// start catch_context.cpp
-
-namespace Catch {
-
-    class Context : public IMutableContext, NonCopyable {
-
-    public: // IContext
-        virtual IResultCapture* getResultCapture() override {
-            return m_resultCapture;
-        }
-        virtual IRunner* getRunner() override {
-            return m_runner;
-        }
-
-        virtual IConfigPtr const& getConfig() const override {
-            return m_config;
-        }
-
-        virtual ~Context() override;
-
-    public: // IMutableContext
-        virtual void setResultCapture( IResultCapture* resultCapture ) override {
-            m_resultCapture = resultCapture;
-        }
-        virtual void setRunner( IRunner* runner ) override {
-            m_runner = runner;
-        }
-        virtual void setConfig( IConfigPtr const& config ) override {
-            m_config = config;
-        }
-
-        friend IMutableContext& getCurrentMutableContext();
-
-    private:
-        IConfigPtr m_config;
-        IRunner* m_runner = nullptr;
-        IResultCapture* m_resultCapture = nullptr;
-    };
-
-    IMutableContext *IMutableContext::currentContext = nullptr;
-
-    void IMutableContext::createContext()
-    {
-        currentContext = new Context();
-    }
-
-    void cleanUpContext() {
-        delete IMutableContext::currentContext;
-        IMutableContext::currentContext = nullptr;
-    }
-    IContext::~IContext() = default;
-    IMutableContext::~IMutableContext() = default;
-    Context::~Context() = default;
-}
-// end catch_context.cpp
-// start catch_debug_console.cpp
-
-// start catch_debug_console.h
-
-#include <string>
-
-namespace Catch {
-    void writeToDebugConsole( std::string const& text );
-}
-
-// end catch_debug_console.h
-#ifdef CATCH_PLATFORM_WINDOWS
-
-    namespace Catch {
-        void writeToDebugConsole( std::string const& text ) {
-            ::OutputDebugStringA( text.c_str() );
-        }
-    }
-
-#else
-
-    namespace Catch {
-        void writeToDebugConsole( std::string const& text ) {
-            // !TBD: Need a version for Mac/ XCode and other IDEs
-            Catch::cout() << text;
-        }
-    }
-
-#endif // Platform
-// end catch_debug_console.cpp
-// start catch_debugger.cpp
-
-#ifdef CATCH_PLATFORM_MAC
-
-#  include <assert.h>
-#  include <stdbool.h>
-#  include <sys/types.h>
-#  include <unistd.h>
-#  include <sys/sysctl.h>
-#  include <cstddef>
-#  include <ostream>
-
-namespace Catch {
-
-        // The following function is taken directly from the following technical note:
-        // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
-
-        // Returns true if the current process is being debugged (either
-        // running under the debugger or has a debugger attached post facto).
-        bool isDebuggerActive(){
-
-            int                 mib[4];
-            struct kinfo_proc   info;
-            std::size_t         size;
-
-            // Initialize the flags so that, if sysctl fails for some bizarre
-            // reason, we get a predictable result.
-
-            info.kp_proc.p_flag = 0;
-
-            // Initialize mib, which tells sysctl the info we want, in this case
-            // we're looking for information about a specific process ID.
-
-            mib[0] = CTL_KERN;
-            mib[1] = KERN_PROC;
-            mib[2] = KERN_PROC_PID;
-            mib[3] = getpid();
-
-            // Call sysctl.
-
-            size = sizeof(info);
-            if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
-                Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
-                return false;
-            }
-
-            // We're being debugged if the P_TRACED flag is set.
-
-            return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
-        }
-    } // namespace Catch
-
-#elif defined(CATCH_PLATFORM_LINUX)
-    #include <fstream>
-    #include <string>
-
-    namespace Catch{
-        // The standard POSIX way of detecting a debugger is to attempt to
-        // ptrace() the process, but this needs to be done from a child and not
-        // this process itself to still allow attaching to this process later
-        // if wanted, so is rather heavy. Under Linux we have the PID of the
-        // "debugger" (which doesn't need to be gdb, of course, it could also
-        // be strace, for example) in /proc/$PID/status, so just get it from
-        // there instead.
-        bool isDebuggerActive(){
-            // Libstdc++ has a bug, where std::ifstream sets errno to 0
-            // This way our users can properly assert over errno values
-            ErrnoGuard guard;
-            std::ifstream in("/proc/self/status");
-            for( std::string line; std::getline(in, line); ) {
-                static const int PREFIX_LEN = 11;
-                if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
-                    // We're traced if the PID is not 0 and no other PID starts
-                    // with 0 digit, so it's enough to check for just a single
-                    // character.
-                    return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
-                }
-            }
-
-            return false;
-        }
-    } // namespace Catch
-#elif defined(_MSC_VER)
-    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
-    namespace Catch {
-        bool isDebuggerActive() {
-            return IsDebuggerPresent() != 0;
-        }
-    }
-#elif defined(__MINGW32__)
-    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
-    namespace Catch {
-        bool isDebuggerActive() {
-            return IsDebuggerPresent() != 0;
-        }
-    }
-#else
-    namespace Catch {
-       bool isDebuggerActive() { return false; }
-    }
-#endif // Platform
-// end catch_debugger.cpp
-// start catch_decomposer.cpp
-
-namespace Catch {
-
-    ITransientExpression::~ITransientExpression() = default;
-
-    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs ) {
-        if( lhs.size() + rhs.size() < 40 &&
-                lhs.find('\n') == std::string::npos &&
-                rhs.find('\n') == std::string::npos )
-            os << lhs << " " << op << " " << rhs;
-        else
-            os << lhs << "\n" << op << "\n" << rhs;
-    }
-}
-// end catch_decomposer.cpp
-// start catch_errno_guard.cpp
-
-#include <cerrno>
-
-namespace Catch {
-        ErrnoGuard::ErrnoGuard():m_oldErrno(errno){}
-        ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
-}
-// end catch_errno_guard.cpp
-// start catch_exception_translator_registry.cpp
-
-// start catch_exception_translator_registry.h
-
-#include <vector>
-#include <string>
-#include <memory>
-
-namespace Catch {
-
-    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
-    public:
-        ~ExceptionTranslatorRegistry();
-        virtual void registerTranslator( const IExceptionTranslator* translator );
-        virtual std::string translateActiveException() const override;
-        std::string tryTranslators() const;
-
-    private:
-        std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
-    };
-}
-
-// end catch_exception_translator_registry.h
-#ifdef __OBJC__
-#import "Foundation/Foundation.h"
-#endif
-
-namespace Catch {
-
-    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
-    }
-
-    void ExceptionTranslatorRegistry::registerTranslator( const IExceptionTranslator* translator ) {
-        m_translators.push_back( std::unique_ptr<const IExceptionTranslator>( translator ) );
-    }
-
-    std::string ExceptionTranslatorRegistry::translateActiveException() const {
-        try {
-#ifdef __OBJC__
-            // In Objective-C try objective-c exceptions first
-            @try {
-                return tryTranslators();
-            }
-            @catch (NSException *exception) {
-                return Catch::Detail::stringify( [exception description] );
-            }
-#else
-            // Compiling a mixed mode project with MSVC means that CLR
-            // exceptions will be caught in (...) as well. However, these
-            // do not fill-in std::current_exception and thus lead to crash
-            // when attempting rethrow.
-            // /EHa switch also causes structured exceptions to be caught
-            // here, but they fill-in current_exception properly, so
-            // at worst the output should be a little weird, instead of
-            // causing a crash.
-            if (std::current_exception() == nullptr) {
-                return "Non C++ exception. Possibly a CLR exception.";
-            }
-            return tryTranslators();
-#endif
-        }
-        catch( TestFailureException& ) {
-            std::rethrow_exception(std::current_exception());
-        }
-        catch( std::exception& ex ) {
-            return ex.what();
-        }
-        catch( std::string& msg ) {
-            return msg;
-        }
-        catch( const char* msg ) {
-            return msg;
-        }
-        catch(...) {
-            return "Unknown exception";
-        }
-    }
-
-    std::string ExceptionTranslatorRegistry::tryTranslators() const {
-        if( m_translators.empty() )
-            std::rethrow_exception(std::current_exception());
-        else
-            return m_translators[0]->translate( m_translators.begin()+1, m_translators.end() );
-    }
-}
-// end catch_exception_translator_registry.cpp
-// start catch_fatal_condition.cpp
-
-#if defined(__GNUC__)
-#    pragma GCC diagnostic push
-#    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
-#endif
-
-#if defined( CATCH_CONFIG_WINDOWS_SEH ) || defined( CATCH_CONFIG_POSIX_SIGNALS )
-
-namespace {
-    // Report the error condition
-    void reportFatal( char const * const message ) {
-        Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition( message );
-    }
-}
-
-#endif // signals/SEH handling
-
-#if defined( CATCH_CONFIG_WINDOWS_SEH )
-
-namespace Catch {
-    struct SignalDefs { DWORD id; const char* name; };
-
-    // There is no 1-1 mapping between signals and windows exceptions.
-    // Windows can easily distinguish between SO and SigSegV,
-    // but SigInt, SigTerm, etc are handled differently.
-    static SignalDefs signalDefs[] = {
-        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
-        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
-        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
-        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
-    };
-
-    LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
-        for (auto const& def : signalDefs) {
-            if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
-                reportFatal(def.name);
-            }
-        }
-        // If its not an exception we care about, pass it along.
-        // This stops us from eating debugger breaks etc.
-        return EXCEPTION_CONTINUE_SEARCH;
-    }
-
-    FatalConditionHandler::FatalConditionHandler() {
-        isSet = true;
-        // 32k seems enough for Catch to handle stack overflow,
-        // but the value was found experimentally, so there is no strong guarantee
-        guaranteeSize = 32 * 1024;
-        exceptionHandlerHandle = nullptr;
-        // Register as first handler in current chain
-        exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
-        // Pass in guarantee size to be filled
-        SetThreadStackGuarantee(&guaranteeSize);
-    }
-
-    void FatalConditionHandler::reset() {
-        if (isSet) {
-            RemoveVectoredExceptionHandler(exceptionHandlerHandle);
-            SetThreadStackGuarantee(&guaranteeSize);
-            exceptionHandlerHandle = nullptr;
-            isSet = false;
-        }
-    }
-
-    FatalConditionHandler::~FatalConditionHandler() {
-        reset();
-    }
-
-bool FatalConditionHandler::isSet = false;
-ULONG FatalConditionHandler::guaranteeSize = 0;
-PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;
-
-} // namespace Catch
-
-#elif defined( CATCH_CONFIG_POSIX_SIGNALS )
-
-namespace Catch {
-
-    struct SignalDefs {
-        int id;
-        const char* name;
-    };
-
-    // 32kb for the alternate stack seems to be sufficient. However, this value
-    // is experimentally determined, so that's not guaranteed.
-    constexpr static std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;
-
-    static SignalDefs signalDefs[] = {
-        { SIGINT,  "SIGINT - Terminal interrupt signal" },
-        { SIGILL,  "SIGILL - Illegal instruction signal" },
-        { SIGFPE,  "SIGFPE - Floating point error signal" },
-        { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
-        { SIGTERM, "SIGTERM - Termination request signal" },
-        { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
-    };
-
-    void FatalConditionHandler::handleSignal( int sig ) {
-        char const * name = "<unknown signal>";
-        for (auto const& def : signalDefs) {
-            if (sig == def.id) {
-                name = def.name;
-                break;
-            }
-        }
-        reset();
-        reportFatal(name);
-        raise( sig );
-    }
-
-    FatalConditionHandler::FatalConditionHandler() {
-        isSet = true;
-        stack_t sigStack;
-        sigStack.ss_sp = altStackMem;
-        sigStack.ss_size = sigStackSize;
-        sigStack.ss_flags = 0;
-        sigaltstack(&sigStack, &oldSigStack);
-        struct sigaction sa = { };
-
-        sa.sa_handler = handleSignal;
-        sa.sa_flags = SA_ONSTACK;
-        for (std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i) {
-            sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
-        }
-    }
-
-    FatalConditionHandler::~FatalConditionHandler() {
-        reset();
-    }
-
-    void FatalConditionHandler::reset() {
-        if( isSet ) {
-            // Set signals back to previous values -- hopefully nobody overwrote them in the meantime
-            for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i ) {
-                sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
-            }
-            // Return the old stack
-            sigaltstack(&oldSigStack, nullptr);
-            isSet = false;
-        }
-    }
-
-    bool FatalConditionHandler::isSet = false;
-    struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs)/sizeof(SignalDefs)] = {};
-    stack_t FatalConditionHandler::oldSigStack = {};
-    char FatalConditionHandler::altStackMem[sigStackSize] = {};
-
-} // namespace Catch
-
-#else
-
-namespace Catch {
-    void FatalConditionHandler::reset() {}
-}
-
-#endif // signals/SEH handling
-
-#if defined(__GNUC__)
-#    pragma GCC diagnostic pop
-#endif
-// end catch_fatal_condition.cpp
-// start catch_interfaces_capture.cpp
-
-namespace Catch {
-    IResultCapture::~IResultCapture() = default;
-}
-// end catch_interfaces_capture.cpp
-// start catch_interfaces_config.cpp
-
-namespace Catch {
-    IConfig::~IConfig() = default;
-}
-// end catch_interfaces_config.cpp
-// start catch_interfaces_exception.cpp
-
-namespace Catch {
-    IExceptionTranslator::~IExceptionTranslator() = default;
-    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
-}
-// end catch_interfaces_exception.cpp
-// start catch_interfaces_registry_hub.cpp
-
-namespace Catch {
-    IRegistryHub::~IRegistryHub() = default;
-    IMutableRegistryHub::~IMutableRegistryHub() = default;
-}
-// end catch_interfaces_registry_hub.cpp
-// start catch_interfaces_reporter.cpp
-
-// start catch_reporter_listening.h
-
-namespace Catch {
-
-    class ListeningReporter : public IStreamingReporter {
-        using Reporters = std::vector<IStreamingReporterPtr>;
-        Reporters m_listeners;
-        IStreamingReporterPtr m_reporter = nullptr;
-
-    public:
-        void addListener( IStreamingReporterPtr&& listener );
-        void addReporter( IStreamingReporterPtr&& reporter );
-
-    public: // IStreamingReporter
-
-        ReporterPreferences getPreferences() const override;
-
-        void noMatchingTestCases( std::string const& spec ) override;
-
-        static std::set<Verbosity> getSupportedVerbosities();
-
-        void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
-        void benchmarkEnded( BenchmarkStats const& benchmarkStats ) override;
-
-        void testRunStarting( TestRunInfo const& testRunInfo ) override;
-        void testGroupStarting( GroupInfo const& groupInfo ) override;
-        void testCaseStarting( TestCaseInfo const& testInfo ) override;
-        void sectionStarting( SectionInfo const& sectionInfo ) override;
-        void assertionStarting( AssertionInfo const& assertionInfo ) override;
-
-        // The return value indicates if the messages buffer should be cleared:
-        bool assertionEnded( AssertionStats const& assertionStats ) override;
-        void sectionEnded( SectionStats const& sectionStats ) override;
-        void testCaseEnded( TestCaseStats const& testCaseStats ) override;
-        void testGroupEnded( TestGroupStats const& testGroupStats ) override;
-        void testRunEnded( TestRunStats const& testRunStats ) override;
-
-        void skipTest( TestCaseInfo const& testInfo ) override;
-        bool isMulti() const override;
-
-    };
-
-} // end namespace Catch
-
-// end catch_reporter_listening.h
-namespace Catch {
-
-    ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig )
-    :   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}
-
-    ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream )
-    :   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}
-
-    std::ostream& ReporterConfig::stream() const { return *m_stream; }
-    IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }
-
-    TestRunInfo::TestRunInfo( std::string const& _name ) : name( _name ) {}
-
-    GroupInfo::GroupInfo(  std::string const& _name,
-                           std::size_t _groupIndex,
-                           std::size_t _groupsCount )
-    :   name( _name ),
-        groupIndex( _groupIndex ),
-        groupsCounts( _groupsCount )
-    {}
-
-     AssertionStats::AssertionStats( AssertionResult const& _assertionResult,
-                                     std::vector<MessageInfo> const& _infoMessages,
-                                     Totals const& _totals )
-    :   assertionResult( _assertionResult ),
-        infoMessages( _infoMessages ),
-        totals( _totals )
-    {
-        assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;
-
-        if( assertionResult.hasMessage() ) {
-            // Copy message into messages list.
-            // !TBD This should have been done earlier, somewhere
-            MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
-            builder << assertionResult.getMessage();
-            builder.m_info.message = builder.m_stream.str();
-
-            infoMessages.push_back( builder.m_info );
-        }
-    }
-
-     AssertionStats::~AssertionStats() = default;
-
-    SectionStats::SectionStats(  SectionInfo const& _sectionInfo,
-                                 Counts const& _assertions,
-                                 double _durationInSeconds,
-                                 bool _missingAssertions )
-    :   sectionInfo( _sectionInfo ),
-        assertions( _assertions ),
-        durationInSeconds( _durationInSeconds ),
-        missingAssertions( _missingAssertions )
-    {}
-
-    SectionStats::~SectionStats() = default;
-
-    TestCaseStats::TestCaseStats(  TestCaseInfo const& _testInfo,
-                                   Totals const& _totals,
-                                   std::string const& _stdOut,
-                                   std::string const& _stdErr,
-                                   bool _aborting )
-    : testInfo( _testInfo ),
-        totals( _totals ),
-        stdOut( _stdOut ),
-        stdErr( _stdErr ),
-        aborting( _aborting )
-    {}
-
-    TestCaseStats::~TestCaseStats() = default;
-
-    TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo,
+     CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ #else // CATCH_CONFIG_DISABLE
+ 
+ #define CATCH_REGISTER_REPORTER(name, reporterType)
+ #define CATCH_REGISTER_LISTENER(listenerType)
+ 
+ #endif // CATCH_CONFIG_DISABLE
+ 
+ // end catch_reporter_registrars.hpp
+ // Allow users to base their work off existing reporters
+ // start catch_reporter_compact.h
+ 
+ namespace Catch {
+ 
+     struct CompactReporter : StreamingReporterBase<CompactReporter> {
+ 
+         using StreamingReporterBase::StreamingReporterBase;
+ 
+         ~CompactReporter() override;
+ 
+         static std::string getDescription();
+ 
+         void noMatchingTestCases(std::string const& spec) override;
+ 
+         void assertionStarting(AssertionInfo const&) override;
+ 
+         bool assertionEnded(AssertionStats const& _assertionStats) override;
+ 
+         void sectionEnded(SectionStats const& _sectionStats) override;
+ 
+         void testRunEnded(TestRunStats const& _testRunStats) override;
+ 
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_reporter_compact.h
+ // start catch_reporter_console.h
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(push)
+ #pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+                               // Note that 4062 (not all labels are handled
+                               // and default is missing) is enabled
+ #endif
+ 
+ namespace Catch {
+     // Fwd decls
+     struct SummaryColumn;
+     class TablePrinter;
+ 
+     struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
+         std::unique_ptr<TablePrinter> m_tablePrinter;
+ 
+         ConsoleReporter(ReporterConfig const& config);
+         ~ConsoleReporter() override;
+         static std::string getDescription();
+ 
+         void noMatchingTestCases(std::string const& spec) override;
+ 
+         void reportInvalidArguments(std::string const&arg) override;
+ 
+         void assertionStarting(AssertionInfo const&) override;
+ 
+         bool assertionEnded(AssertionStats const& _assertionStats) override;
+ 
+         void sectionStarting(SectionInfo const& _sectionInfo) override;
+         void sectionEnded(SectionStats const& _sectionStats) override;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         void benchmarkPreparing(std::string const& name) override;
+         void benchmarkStarting(BenchmarkInfo const& info) override;
+         void benchmarkEnded(BenchmarkStats<> const& stats) override;
+         void benchmarkFailed(std::string const& error) override;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+         void testCaseEnded(TestCaseStats const& _testCaseStats) override;
+         void testGroupEnded(TestGroupStats const& _testGroupStats) override;
+         void testRunEnded(TestRunStats const& _testRunStats) override;
+         void testRunStarting(TestRunInfo const& _testRunInfo) override;
+     private:
+ 
+         void lazyPrint();
+ 
+         void lazyPrintWithoutClosingBenchmarkTable();
+         void lazyPrintRunInfo();
+         void lazyPrintGroupInfo();
+         void printTestCaseAndSectionHeader();
+ 
+         void printClosedHeader(std::string const& _name);
+         void printOpenHeader(std::string const& _name);
+ 
+         // if string has a : in first line will set indent to follow it on
+         // subsequent lines
+         void printHeaderString(std::string const& _string, std::size_t indent = 0);
+ 
+         void printTotals(Totals const& totals);
+         void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row);
+ 
+         void printTotalsDivider(Totals const& totals);
+         void printSummaryDivider();
+         void printTestFilters();
+ 
+     private:
+         bool m_headerPrinted = false;
+     };
+ 
+ } // end namespace Catch
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(pop)
+ #endif
+ 
+ // end catch_reporter_console.h
+ // start catch_reporter_junit.h
+ 
+ // start catch_xmlwriter.h
+ 
+ #include <vector>
+ 
+ namespace Catch {
+     enum class XmlFormatting {
+         None = 0x00,
+         Indent = 0x01,
+         Newline = 0x02,
+     };
+ 
+     XmlFormatting operator | (XmlFormatting lhs, XmlFormatting rhs);
+     XmlFormatting operator & (XmlFormatting lhs, XmlFormatting rhs);
+ 
+     class XmlEncode {
+     public:
+         enum ForWhat { ForTextNodes, ForAttributes };
+ 
+         XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );
+ 
+         void encodeTo( std::ostream& os ) const;
+ 
+         friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );
+ 
+     private:
+         std::string m_str;
+         ForWhat m_forWhat;
+     };
+ 
+     class XmlWriter {
+     public:
+ 
+         class ScopedElement {
+         public:
+             ScopedElement( XmlWriter* writer, XmlFormatting fmt );
+ 
+             ScopedElement( ScopedElement&& other ) noexcept;
+             ScopedElement& operator=( ScopedElement&& other ) noexcept;
+ 
+             ~ScopedElement();
+ 
+             ScopedElement& writeText( std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent );
+ 
+             template<typename T>
+             ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
+                 m_writer->writeAttribute( name, attribute );
+                 return *this;
+             }
+ 
+         private:
+             mutable XmlWriter* m_writer = nullptr;
+             XmlFormatting m_fmt;
+         };
+ 
+         XmlWriter( std::ostream& os = Catch::cout() );
+         ~XmlWriter();
+ 
+         XmlWriter( XmlWriter const& ) = delete;
+         XmlWriter& operator=( XmlWriter const& ) = delete;
+ 
+         XmlWriter& startElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
+ 
+         ScopedElement scopedElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
+ 
+         XmlWriter& endElement(XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
+ 
+         XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );
+ 
+         XmlWriter& writeAttribute( std::string const& name, bool attribute );
+ 
+         template<typename T>
+         XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
+             ReusableStringStream rss;
+             rss << attribute;
+             return writeAttribute( name, rss.str() );
+         }
+ 
+         XmlWriter& writeText( std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
+ 
+         XmlWriter& writeComment(std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
+ 
+         void writeStylesheetRef( std::string const& url );
+ 
+         XmlWriter& writeBlankLine();
+ 
+         void ensureTagClosed();
+ 
+     private:
+ 
+         void applyFormatting(XmlFormatting fmt);
+ 
+         void writeDeclaration();
+ 
+         void newlineIfNecessary();
+ 
+         bool m_tagIsOpen = false;
+         bool m_needsNewline = false;
+         std::vector<std::string> m_tags;
+         std::string m_indent;
+         std::ostream& m_os;
+     };
+ 
+ }
+ 
+ // end catch_xmlwriter.h
+ namespace Catch {
+ 
+     class JunitReporter : public CumulativeReporterBase<JunitReporter> {
+     public:
+         JunitReporter(ReporterConfig const& _config);
+ 
+         ~JunitReporter() override;
+ 
+         static std::string getDescription();
+ 
+         void noMatchingTestCases(std::string const& /*spec*/) override;
+ 
+         void testRunStarting(TestRunInfo const& runInfo) override;
+ 
+         void testGroupStarting(GroupInfo const& groupInfo) override;
+ 
+         void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
+         bool assertionEnded(AssertionStats const& assertionStats) override;
+ 
+         void testCaseEnded(TestCaseStats const& testCaseStats) override;
+ 
+         void testGroupEnded(TestGroupStats const& testGroupStats) override;
+ 
+         void testRunEndedCumulative() override;
+ 
+         void writeGroup(TestGroupNode const& groupNode, double suiteTime);
+ 
+         void writeTestCase(TestCaseNode const& testCaseNode);
+ 
+         void writeSection( std::string const& className,
+                            std::string const& rootName,
+                            SectionNode const& sectionNode,
+                            bool testOkToFail );
+ 
+         void writeAssertions(SectionNode const& sectionNode);
+         void writeAssertion(AssertionStats const& stats);
+ 
+         XmlWriter xml;
+         Timer suiteTimer;
+         std::string stdOutForSuite;
+         std::string stdErrForSuite;
+         unsigned int unexpectedExceptions = 0;
+         bool m_okToFail = false;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_reporter_junit.h
+ // start catch_reporter_xml.h
+ 
+ namespace Catch {
+     class XmlReporter : public StreamingReporterBase<XmlReporter> {
+     public:
+         XmlReporter(ReporterConfig const& _config);
+ 
+         ~XmlReporter() override;
+ 
+         static std::string getDescription();
+ 
+         virtual std::string getStylesheetRef() const;
+ 
+         void writeSourceInfo(SourceLineInfo const& sourceInfo);
+ 
+     public: // StreamingReporterBase
+ 
+         void noMatchingTestCases(std::string const& s) override;
+ 
+         void testRunStarting(TestRunInfo const& testInfo) override;
+ 
+         void testGroupStarting(GroupInfo const& groupInfo) override;
+ 
+         void testCaseStarting(TestCaseInfo const& testInfo) override;
+ 
+         void sectionStarting(SectionInfo const& sectionInfo) override;
+ 
+         void assertionStarting(AssertionInfo const&) override;
+ 
+         bool assertionEnded(AssertionStats const& assertionStats) override;
+ 
+         void sectionEnded(SectionStats const& sectionStats) override;
+ 
+         void testCaseEnded(TestCaseStats const& testCaseStats) override;
+ 
+         void testGroupEnded(TestGroupStats const& testGroupStats) override;
+ 
+         void testRunEnded(TestRunStats const& testRunStats) override;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         void benchmarkPreparing(std::string const& name) override;
+         void benchmarkStarting(BenchmarkInfo const&) override;
+         void benchmarkEnded(BenchmarkStats<> const&) override;
+         void benchmarkFailed(std::string const&) override;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     private:
+         Timer m_testCaseTimer;
+         XmlWriter m_xml;
+         int m_sectionDepth = 0;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_reporter_xml.h
+ 
+ // end catch_external_interfaces.h
+ #endif
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ // start catch_benchmarking_all.hpp
+ 
+ // A proxy header that includes all of the benchmarking headers to allow
+ // concise include of the benchmarking features. You should prefer the
+ // individual includes in standard use.
+ 
+ // start catch_benchmark.hpp
+ 
+  // Benchmark
+ 
+ // start catch_chronometer.hpp
+ 
+ // User-facing chronometer
+ 
+ 
+ // start catch_clock.hpp
+ 
+ // Clocks
+ 
+ 
+ #include <chrono>
+ #include <ratio>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Clock>
+         using ClockDuration = typename Clock::duration;
+         template <typename Clock>
+         using FloatDuration = std::chrono::duration<double, typename Clock::period>;
+ 
+         template <typename Clock>
+         using TimePoint = typename Clock::time_point;
+ 
+         using default_clock = std::chrono::steady_clock;
+ 
+         template <typename Clock>
+         struct now {
+             TimePoint<Clock> operator()() const {
+                 return Clock::now();
+             }
+         };
+ 
+         using fp_seconds = std::chrono::duration<double, std::ratio<1>>;
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_clock.hpp
+ // start catch_optimizer.hpp
+ 
+  // Hinting the optimizer
+ 
+ 
+ #if defined(_MSC_VER)
+ #   include <atomic> // atomic_thread_fence
+ #endif
+ 
+ namespace Catch {
+     namespace Benchmark {
+ #if defined(__GNUC__) || defined(__clang__)
+         template <typename T>
+         inline void keep_memory(T* p) {
+             asm volatile("" : : "g"(p) : "memory");
+         }
+         inline void keep_memory() {
+             asm volatile("" : : : "memory");
+         }
+ 
+         namespace Detail {
+             inline void optimizer_barrier() { keep_memory(); }
+         } // namespace Detail
+ #elif defined(_MSC_VER)
+ 
+ #pragma optimize("", off)
+         template <typename T>
+         inline void keep_memory(T* p) {
+             // thanks @milleniumbug
+             *reinterpret_cast<char volatile*>(p) = *reinterpret_cast<char const volatile*>(p);
+         }
+         // TODO equivalent keep_memory()
+ #pragma optimize("", on)
+ 
+         namespace Detail {
+             inline void optimizer_barrier() {
+                 std::atomic_thread_fence(std::memory_order_seq_cst);
+             }
+         } // namespace Detail
+ 
+ #endif
+ 
+         template <typename T>
+         inline void deoptimize_value(T&& x) {
+             keep_memory(&x);
+         }
+ 
+         template <typename Fn, typename... Args>
+         inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> typename std::enable_if<!std::is_same<void, decltype(fn(args...))>::value>::type {
+             deoptimize_value(std::forward<Fn>(fn) (std::forward<Args...>(args...)));
+         }
+ 
+         template <typename Fn, typename... Args>
+         inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> typename std::enable_if<std::is_same<void, decltype(fn(args...))>::value>::type {
+             std::forward<Fn>(fn) (std::forward<Args...>(args...));
+         }
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_optimizer.hpp
+ // start catch_complete_invoke.hpp
+ 
+ // Invoke with a special case for void
+ 
+ 
+ #include <type_traits>
+ #include <utility>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename T>
+             struct CompleteType { using type = T; };
+             template <>
+             struct CompleteType<void> { struct type {}; };
+ 
+             template <typename T>
+             using CompleteType_t = typename CompleteType<T>::type;
+ 
+             template <typename Result>
+             struct CompleteInvoker {
+                 template <typename Fun, typename... Args>
+                 static Result invoke(Fun&& fun, Args&&... args) {
+                     return std::forward<Fun>(fun)(std::forward<Args>(args)...);
+                 }
+             };
+             template <>
+             struct CompleteInvoker<void> {
+                 template <typename Fun, typename... Args>
+                 static CompleteType_t<void> invoke(Fun&& fun, Args&&... args) {
+                     std::forward<Fun>(fun)(std::forward<Args>(args)...);
+                     return {};
+                 }
+             };
+ 
+             // invoke and not return void :(
+             template <typename Fun, typename... Args>
+             CompleteType_t<FunctionReturnType<Fun, Args...>> complete_invoke(Fun&& fun, Args&&... args) {
+                 return CompleteInvoker<FunctionReturnType<Fun, Args...>>::invoke(std::forward<Fun>(fun), std::forward<Args>(args)...);
+             }
+ 
+             const std::string benchmarkErrorMsg = "a benchmark failed to run successfully";
+         } // namespace Detail
+ 
+         template <typename Fun>
+         Detail::CompleteType_t<FunctionReturnType<Fun>> user_code(Fun&& fun) {
+             CATCH_TRY{
+                 return Detail::complete_invoke(std::forward<Fun>(fun));
+             } CATCH_CATCH_ALL{
+                 getResultCapture().benchmarkFailed(translateActiveException());
+                 CATCH_RUNTIME_ERROR(Detail::benchmarkErrorMsg);
+             }
+         }
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_complete_invoke.hpp
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             struct ChronometerConcept {
+                 virtual void start() = 0;
+                 virtual void finish() = 0;
+                 virtual ~ChronometerConcept() = default;
+             };
+             template <typename Clock>
+             struct ChronometerModel final : public ChronometerConcept {
+                 void start() override { started = Clock::now(); }
+                 void finish() override { finished = Clock::now(); }
+ 
+                 ClockDuration<Clock> elapsed() const { return finished - started; }
+ 
+                 TimePoint<Clock> started;
+                 TimePoint<Clock> finished;
+             };
+         } // namespace Detail
+ 
+         struct Chronometer {
+         public:
+             template <typename Fun>
+             void measure(Fun&& fun) { measure(std::forward<Fun>(fun), is_callable<Fun(int)>()); }
+ 
+             int runs() const { return k; }
+ 
+             Chronometer(Detail::ChronometerConcept& meter, int k)
+                 : impl(&meter)
+                 , k(k) {}
+ 
+         private:
+             template <typename Fun>
+             void measure(Fun&& fun, std::false_type) {
+                 measure([&fun](int) { return fun(); }, std::true_type());
+             }
+ 
+             template <typename Fun>
+             void measure(Fun&& fun, std::true_type) {
+                 Detail::optimizer_barrier();
+                 impl->start();
+                 for (int i = 0; i < k; ++i) invoke_deoptimized(fun, i);
+                 impl->finish();
+                 Detail::optimizer_barrier();
+             }
+ 
+             Detail::ChronometerConcept* impl;
+             int k;
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_chronometer.hpp
+ // start catch_environment.hpp
+ 
+ // Environment information
+ 
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Duration>
+         struct EnvironmentEstimate {
+             Duration mean;
+             OutlierClassification outliers;
+ 
+             template <typename Duration2>
+             operator EnvironmentEstimate<Duration2>() const {
+                 return { mean, outliers };
+             }
+         };
+         template <typename Clock>
+         struct Environment {
+             using clock_type = Clock;
+             EnvironmentEstimate<FloatDuration<Clock>> clock_resolution;
+             EnvironmentEstimate<FloatDuration<Clock>> clock_cost;
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_environment.hpp
+ // start catch_execution_plan.hpp
+ 
+  // Execution plan
+ 
+ 
+ // start catch_benchmark_function.hpp
+ 
+  // Dumb std::function implementation for consistent call overhead
+ 
+ 
+ #include <cassert>
+ #include <type_traits>
+ #include <utility>
+ #include <memory>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename T>
+             using Decay = typename std::decay<T>::type;
+             template <typename T, typename U>
+             struct is_related
+                 : std::is_same<Decay<T>, Decay<U>> {};
+ 
+             /// We need to reinvent std::function because every piece of code that might add overhead
+             /// in a measurement context needs to have consistent performance characteristics so that we
+             /// can account for it in the measurement.
+             /// Implementations of std::function with optimizations that aren't always applicable, like
+             /// small buffer optimizations, are not uncommon.
+             /// This is effectively an implementation of std::function without any such optimizations;
+             /// it may be slow, but it is consistently slow.
+             struct BenchmarkFunction {
+             private:
+                 struct callable {
+                     virtual void call(Chronometer meter) const = 0;
+                     virtual callable* clone() const = 0;
+                     virtual ~callable() = default;
+                 };
+                 template <typename Fun>
+                 struct model : public callable {
+                     model(Fun&& fun) : fun(std::move(fun)) {}
+                     model(Fun const& fun) : fun(fun) {}
+ 
+                     model<Fun>* clone() const override { return new model<Fun>(*this); }
+ 
+                     void call(Chronometer meter) const override {
+                         call(meter, is_callable<Fun(Chronometer)>());
+                     }
+                     void call(Chronometer meter, std::true_type) const {
+                         fun(meter);
+                     }
+                     void call(Chronometer meter, std::false_type) const {
+                         meter.measure(fun);
+                     }
+ 
+                     Fun fun;
+                 };
+ 
+                 struct do_nothing { void operator()() const {} };
+ 
+                 template <typename T>
+                 BenchmarkFunction(model<T>* c) : f(c) {}
+ 
+             public:
+                 BenchmarkFunction()
+                     : f(new model<do_nothing>{ {} }) {}
+ 
+                 template <typename Fun,
+                     typename std::enable_if<!is_related<Fun, BenchmarkFunction>::value, int>::type = 0>
+                     BenchmarkFunction(Fun&& fun)
+                     : f(new model<typename std::decay<Fun>::type>(std::forward<Fun>(fun))) {}
+ 
+                 BenchmarkFunction(BenchmarkFunction&& that)
+                     : f(std::move(that.f)) {}
+ 
+                 BenchmarkFunction(BenchmarkFunction const& that)
+                     : f(that.f->clone()) {}
+ 
+                 BenchmarkFunction& operator=(BenchmarkFunction&& that) {
+                     f = std::move(that.f);
+                     return *this;
+                 }
+ 
+                 BenchmarkFunction& operator=(BenchmarkFunction const& that) {
+                     f.reset(that.f->clone());
+                     return *this;
+                 }
+ 
+                 void operator()(Chronometer meter) const { f->call(meter); }
+ 
+             private:
+                 std::unique_ptr<callable> f;
+             };
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_benchmark_function.hpp
+ // start catch_repeat.hpp
+ 
+ // repeat algorithm
+ 
+ 
+ #include <type_traits>
+ #include <utility>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename Fun>
+             struct repeater {
+                 void operator()(int k) const {
+                     for (int i = 0; i < k; ++i) {
+                         fun();
+                     }
+                 }
+                 Fun fun;
+             };
+             template <typename Fun>
+             repeater<typename std::decay<Fun>::type> repeat(Fun&& fun) {
+                 return { std::forward<Fun>(fun) };
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_repeat.hpp
+ // start catch_run_for_at_least.hpp
+ 
+ // Run a function for a minimum amount of time
+ 
+ 
+ // start catch_measure.hpp
+ 
+ // Measure
+ 
+ 
+ // start catch_timing.hpp
+ 
+ // Timing
+ 
+ 
+ #include <tuple>
+ #include <type_traits>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Duration, typename Result>
+         struct Timing {
+             Duration elapsed;
+             Result result;
+             int iterations;
+         };
+         template <typename Clock, typename Func, typename... Args>
+         using TimingOf = Timing<ClockDuration<Clock>, Detail::CompleteType_t<FunctionReturnType<Func, Args...>>>;
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_timing.hpp
+ #include <utility>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename Clock, typename Fun, typename... Args>
+             TimingOf<Clock, Fun, Args...> measure(Fun&& fun, Args&&... args) {
+                 auto start = Clock::now();
+                 auto&& r = Detail::complete_invoke(fun, std::forward<Args>(args)...);
+                 auto end = Clock::now();
+                 auto delta = end - start;
+                 return { delta, std::forward<decltype(r)>(r), 1 };
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_measure.hpp
+ #include <utility>
+ #include <type_traits>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename Clock, typename Fun>
+             TimingOf<Clock, Fun, int> measure_one(Fun&& fun, int iters, std::false_type) {
+                 return Detail::measure<Clock>(fun, iters);
+             }
+             template <typename Clock, typename Fun>
+             TimingOf<Clock, Fun, Chronometer> measure_one(Fun&& fun, int iters, std::true_type) {
+                 Detail::ChronometerModel<Clock> meter;
+                 auto&& result = Detail::complete_invoke(fun, Chronometer(meter, iters));
+ 
+                 return { meter.elapsed(), std::move(result), iters };
+             }
+ 
+             template <typename Clock, typename Fun>
+             using run_for_at_least_argument_t = typename std::conditional<is_callable<Fun(Chronometer)>::value, Chronometer, int>::type;
+ 
+             struct optimized_away_error : std::exception {
+                 const char* what() const noexcept override {
+                     return "could not measure benchmark, maybe it was optimized away";
+                 }
+             };
+ 
+             template <typename Clock, typename Fun>
+             TimingOf<Clock, Fun, run_for_at_least_argument_t<Clock, Fun>> run_for_at_least(ClockDuration<Clock> how_long, int seed, Fun&& fun) {
+                 auto iters = seed;
+                 while (iters < (1 << 30)) {
+                     auto&& Timing = measure_one<Clock>(fun, iters, is_callable<Fun(Chronometer)>());
+ 
+                     if (Timing.elapsed >= how_long) {
+                         return { Timing.elapsed, std::move(Timing.result), iters };
+                     }
+                     iters *= 2;
+                 }
+                 Catch::throw_exception(optimized_away_error{});
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_run_for_at_least.hpp
+ #include <algorithm>
+ #include <iterator>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Duration>
+         struct ExecutionPlan {
+             int iterations_per_sample;
+             Duration estimated_duration;
+             Detail::BenchmarkFunction benchmark;
+             Duration warmup_time;
+             int warmup_iterations;
+ 
+             template <typename Duration2>
+             operator ExecutionPlan<Duration2>() const {
+                 return { iterations_per_sample, estimated_duration, benchmark, warmup_time, warmup_iterations };
+             }
+ 
+             template <typename Clock>
+             std::vector<FloatDuration<Clock>> run(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
+                 // warmup a bit
+                 Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_iterations, Detail::repeat(now<Clock>{}));
+ 
+                 std::vector<FloatDuration<Clock>> times;
+                 times.reserve(cfg.benchmarkSamples());
+                 std::generate_n(std::back_inserter(times), cfg.benchmarkSamples(), [this, env] {
+                     Detail::ChronometerModel<Clock> model;
+                     this->benchmark(Chronometer(model, iterations_per_sample));
+                     auto sample_time = model.elapsed() - env.clock_cost.mean;
+                     if (sample_time < FloatDuration<Clock>::zero()) sample_time = FloatDuration<Clock>::zero();
+                     return sample_time / iterations_per_sample;
+                 });
+                 return times;
+             }
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_execution_plan.hpp
+ // start catch_estimate_clock.hpp
+ 
+  // Environment measurement
+ 
+ 
+ // start catch_stats.hpp
+ 
+ // Statistical analysis tools
+ 
+ 
+ #include <algorithm>
+ #include <functional>
+ #include <vector>
+ #include <iterator>
+ #include <numeric>
+ #include <tuple>
+ #include <cmath>
+ #include <utility>
+ #include <cstddef>
+ #include <random>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             using sample = std::vector<double>;
+ 
+             double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last);
+ 
+             template <typename Iterator>
+             OutlierClassification classify_outliers(Iterator first, Iterator last) {
+                 std::vector<double> copy(first, last);
+ 
+                 auto q1 = weighted_average_quantile(1, 4, copy.begin(), copy.end());
+                 auto q3 = weighted_average_quantile(3, 4, copy.begin(), copy.end());
+                 auto iqr = q3 - q1;
+                 auto los = q1 - (iqr * 3.);
+                 auto lom = q1 - (iqr * 1.5);
+                 auto him = q3 + (iqr * 1.5);
+                 auto his = q3 + (iqr * 3.);
+ 
+                 OutlierClassification o;
+                 for (; first != last; ++first) {
+                     auto&& t = *first;
+                     if (t < los) ++o.low_severe;
+                     else if (t < lom) ++o.low_mild;
+                     else if (t > his) ++o.high_severe;
+                     else if (t > him) ++o.high_mild;
+                     ++o.samples_seen;
+                 }
+                 return o;
+             }
+ 
+             template <typename Iterator>
+             double mean(Iterator first, Iterator last) {
+                 auto count = last - first;
+                 double sum = std::accumulate(first, last, 0.);
+                 return sum / count;
+             }
+ 
+             template <typename URng, typename Iterator, typename Estimator>
+             sample resample(URng& rng, int resamples, Iterator first, Iterator last, Estimator& estimator) {
+                 auto n = last - first;
+                 std::uniform_int_distribution<decltype(n)> dist(0, n - 1);
+ 
+                 sample out;
+                 out.reserve(resamples);
+                 std::generate_n(std::back_inserter(out), resamples, [n, first, &estimator, &dist, &rng] {
+                     std::vector<double> resampled;
+                     resampled.reserve(n);
+                     std::generate_n(std::back_inserter(resampled), n, [first, &dist, &rng] { return first[dist(rng)]; });
+                     return estimator(resampled.begin(), resampled.end());
+                 });
+                 std::sort(out.begin(), out.end());
+                 return out;
+             }
+ 
+             template <typename Estimator, typename Iterator>
+             sample jackknife(Estimator&& estimator, Iterator first, Iterator last) {
+                 auto n = last - first;
+                 auto second = std::next(first);
+                 sample results;
+                 results.reserve(n);
+ 
+                 for (auto it = first; it != last; ++it) {
+                     std::iter_swap(it, first);
+                     results.push_back(estimator(second, last));
+                 }
+ 
+                 return results;
+             }
+ 
+             inline double normal_cdf(double x) {
+                 return std::erfc(-x / std::sqrt(2.0)) / 2.0;
+             }
+ 
+             double erfc_inv(double x);
+ 
+             double normal_quantile(double p);
+ 
+             template <typename Iterator, typename Estimator>
+             Estimate<double> bootstrap(double confidence_level, Iterator first, Iterator last, sample const& resample, Estimator&& estimator) {
+                 auto n_samples = last - first;
+ 
+                 double point = estimator(first, last);
+                 // Degenerate case with a single sample
+                 if (n_samples == 1) return { point, point, point, confidence_level };
+ 
+                 sample jack = jackknife(estimator, first, last);
+                 double jack_mean = mean(jack.begin(), jack.end());
+                 double sum_squares, sum_cubes;
+                 std::tie(sum_squares, sum_cubes) = std::accumulate(jack.begin(), jack.end(), std::make_pair(0., 0.), [jack_mean](std::pair<double, double> sqcb, double x) -> std::pair<double, double> {
+                     auto d = jack_mean - x;
+                     auto d2 = d * d;
+                     auto d3 = d2 * d;
+                     return { sqcb.first + d2, sqcb.second + d3 };
+                 });
+ 
+                 double accel = sum_cubes / (6 * std::pow(sum_squares, 1.5));
+                 int n = static_cast<int>(resample.size());
+                 double prob_n = std::count_if(resample.begin(), resample.end(), [point](double x) { return x < point; }) / (double)n;
+                 // degenerate case with uniform samples
+                 if (prob_n == 0) return { point, point, point, confidence_level };
+ 
+                 double bias = normal_quantile(prob_n);
+                 double z1 = normal_quantile((1. - confidence_level) / 2.);
+ 
+                 auto cumn = [n](double x) -> int {
+                     return std::lround(normal_cdf(x) * n); };
+                 auto a = [bias, accel](double b) { return bias + b / (1. - accel * b); };
+                 double b1 = bias + z1;
+                 double b2 = bias - z1;
+                 double a1 = a(b1);
+                 double a2 = a(b2);
+                 auto lo = (std::max)(cumn(a1), 0);
+                 auto hi = (std::min)(cumn(a2), n - 1);
+ 
+                 return { point, resample[lo], resample[hi], confidence_level };
+             }
+ 
+             double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n);
+ 
+             struct bootstrap_analysis {
+                 Estimate<double> mean;
+                 Estimate<double> standard_deviation;
+                 double outlier_variance;
+             };
+ 
+             bootstrap_analysis analyse_samples(double confidence_level, int n_resamples, std::vector<double>::iterator first, std::vector<double>::iterator last);
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_stats.hpp
+ #include <algorithm>
+ #include <iterator>
+ #include <tuple>
+ #include <vector>
+ #include <cmath>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename Clock>
+             std::vector<double> resolution(int k) {
+                 std::vector<TimePoint<Clock>> times;
+                 times.reserve(k + 1);
+                 std::generate_n(std::back_inserter(times), k + 1, now<Clock>{});
+ 
+                 std::vector<double> deltas;
+                 deltas.reserve(k);
+                 std::transform(std::next(times.begin()), times.end(), times.begin(),
+                     std::back_inserter(deltas),
+                     [](TimePoint<Clock> a, TimePoint<Clock> b) { return static_cast<double>((a - b).count()); });
+ 
+                 return deltas;
+             }
+ 
+             const auto warmup_iterations = 10000;
+             const auto warmup_time = std::chrono::milliseconds(100);
+             const auto minimum_ticks = 1000;
+             const auto warmup_seed = 10000;
+             const auto clock_resolution_estimation_time = std::chrono::milliseconds(500);
+             const auto clock_cost_estimation_time_limit = std::chrono::seconds(1);
+             const auto clock_cost_estimation_tick_limit = 100000;
+             const auto clock_cost_estimation_time = std::chrono::milliseconds(10);
+             const auto clock_cost_estimation_iterations = 10000;
+ 
+             template <typename Clock>
+             int warmup() {
+                 return run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_seed, &resolution<Clock>)
+                     .iterations;
+             }
+             template <typename Clock>
+             EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_resolution(int iterations) {
+                 auto r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_resolution_estimation_time), iterations, &resolution<Clock>)
+                     .result;
+                 return {
+                     FloatDuration<Clock>(mean(r.begin(), r.end())),
+                     classify_outliers(r.begin(), r.end()),
+                 };
+             }
+             template <typename Clock>
+             EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_cost(FloatDuration<Clock> resolution) {
+                 auto time_limit = (std::min)(
+                     resolution * clock_cost_estimation_tick_limit,
+                     FloatDuration<Clock>(clock_cost_estimation_time_limit));
+                 auto time_clock = [](int k) {
+                     return Detail::measure<Clock>([k] {
+                         for (int i = 0; i < k; ++i) {
+                             volatile auto ignored = Clock::now();
+                             (void)ignored;
+                         }
+                     }).elapsed;
+                 };
+                 time_clock(1);
+                 int iters = clock_cost_estimation_iterations;
+                 auto&& r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_cost_estimation_time), iters, time_clock);
+                 std::vector<double> times;
+                 int nsamples = static_cast<int>(std::ceil(time_limit / r.elapsed));
+                 times.reserve(nsamples);
+                 std::generate_n(std::back_inserter(times), nsamples, [time_clock, &r] {
+                     return static_cast<double>((time_clock(r.iterations) / r.iterations).count());
+                 });
+                 return {
+                     FloatDuration<Clock>(mean(times.begin(), times.end())),
+                     classify_outliers(times.begin(), times.end()),
+                 };
+             }
+ 
+             template <typename Clock>
+             Environment<FloatDuration<Clock>> measure_environment() {
+                 static Environment<FloatDuration<Clock>>* env = nullptr;
+                 if (env) {
+                     return *env;
+                 }
+ 
+                 auto iters = Detail::warmup<Clock>();
+                 auto resolution = Detail::estimate_clock_resolution<Clock>(iters);
+                 auto cost = Detail::estimate_clock_cost<Clock>(resolution.mean);
+ 
+                 env = new Environment<FloatDuration<Clock>>{ resolution, cost };
+                 return *env;
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_estimate_clock.hpp
+ // start catch_analyse.hpp
+ 
+  // Run and analyse one benchmark
+ 
+ 
+ // start catch_sample_analysis.hpp
+ 
+ // Benchmark results
+ 
+ 
+ #include <algorithm>
+ #include <vector>
+ #include <string>
+ #include <iterator>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         template <typename Duration>
+         struct SampleAnalysis {
+             std::vector<Duration> samples;
+             Estimate<Duration> mean;
+             Estimate<Duration> standard_deviation;
+             OutlierClassification outliers;
+             double outlier_variance;
+ 
+             template <typename Duration2>
+             operator SampleAnalysis<Duration2>() const {
+                 std::vector<Duration2> samples2;
+                 samples2.reserve(samples.size());
+                 std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](Duration d) { return Duration2(d); });
+                 return {
+                     std::move(samples2),
+                     mean,
+                     standard_deviation,
+                     outliers,
+                     outlier_variance,
+                 };
+             }
+         };
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_sample_analysis.hpp
+ #include <algorithm>
+ #include <iterator>
+ #include <vector>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename Duration, typename Iterator>
+             SampleAnalysis<Duration> analyse(const IConfig &cfg, Environment<Duration>, Iterator first, Iterator last) {
+                 if (!cfg.benchmarkNoAnalysis()) {
+                     std::vector<double> samples;
+                     samples.reserve(last - first);
+                     std::transform(first, last, std::back_inserter(samples), [](Duration d) { return d.count(); });
+ 
+                     auto analysis = Catch::Benchmark::Detail::analyse_samples(cfg.benchmarkConfidenceInterval(), cfg.benchmarkResamples(), samples.begin(), samples.end());
+                     auto outliers = Catch::Benchmark::Detail::classify_outliers(samples.begin(), samples.end());
+ 
+                     auto wrap_estimate = [](Estimate<double> e) {
+                         return Estimate<Duration> {
+                             Duration(e.point),
+                                 Duration(e.lower_bound),
+                                 Duration(e.upper_bound),
+                                 e.confidence_interval,
+                         };
+                     };
+                     std::vector<Duration> samples2;
+                     samples2.reserve(samples.size());
+                     std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](double d) { return Duration(d); });
+                     return {
+                         std::move(samples2),
+                         wrap_estimate(analysis.mean),
+                         wrap_estimate(analysis.standard_deviation),
+                         outliers,
+                         analysis.outlier_variance,
+                     };
+                 } else {
+                     std::vector<Duration> samples;
+                     samples.reserve(last - first);
+ 
+                     Duration mean = Duration(0);
+                     int i = 0;
+                     for (auto it = first; it < last; ++it, ++i) {
+                         samples.push_back(Duration(*it));
+                         mean += Duration(*it);
+                     }
+                     mean /= i;
+ 
+                     return {
+                         std::move(samples),
+                         Estimate<Duration>{mean, mean, mean, 0.0},
+                         Estimate<Duration>{Duration(0), Duration(0), Duration(0), 0.0},
+                         OutlierClassification{},
+                         0.0
+                     };
+                 }
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ // end catch_analyse.hpp
+ #include <algorithm>
+ #include <functional>
+ #include <string>
+ #include <vector>
+ #include <cmath>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         struct Benchmark {
+             Benchmark(std::string &&name)
+                 : name(std::move(name)) {}
+ 
+             template <class FUN>
+             Benchmark(std::string &&name, FUN &&func)
+                 : fun(std::move(func)), name(std::move(name)) {}
+ 
+             template <typename Clock>
+             ExecutionPlan<FloatDuration<Clock>> prepare(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
+                 auto min_time = env.clock_resolution.mean * Detail::minimum_ticks;
+                 auto run_time = std::max(min_time, std::chrono::duration_cast<decltype(min_time)>(cfg.benchmarkWarmupTime()));
+                 auto&& test = Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(run_time), 1, fun);
+                 int new_iters = static_cast<int>(std::ceil(min_time * test.iterations / test.elapsed));
+                 return { new_iters, test.elapsed / test.iterations * new_iters * cfg.benchmarkSamples(), fun, std::chrono::duration_cast<FloatDuration<Clock>>(cfg.benchmarkWarmupTime()), Detail::warmup_iterations };
+             }
+ 
+             template <typename Clock = default_clock>
+             void run() {
+                 IConfigPtr cfg = getCurrentContext().getConfig();
+ 
+                 auto env = Detail::measure_environment<Clock>();
+ 
+                 getResultCapture().benchmarkPreparing(name);
+                 CATCH_TRY{
+                     auto plan = user_code([&] {
+                         return prepare<Clock>(*cfg, env);
+                     });
+ 
+                     BenchmarkInfo info {
+                         name,
+                         plan.estimated_duration.count(),
+                         plan.iterations_per_sample,
+                         cfg->benchmarkSamples(),
+                         cfg->benchmarkResamples(),
+                         env.clock_resolution.mean.count(),
+                         env.clock_cost.mean.count()
+                     };
+ 
+                     getResultCapture().benchmarkStarting(info);
+ 
+                     auto samples = user_code([&] {
+                         return plan.template run<Clock>(*cfg, env);
+                     });
+ 
+                     auto analysis = Detail::analyse(*cfg, env, samples.begin(), samples.end());
+                     BenchmarkStats<FloatDuration<Clock>> stats{ info, analysis.samples, analysis.mean, analysis.standard_deviation, analysis.outliers, analysis.outlier_variance };
+                     getResultCapture().benchmarkEnded(stats);
+ 
+                 } CATCH_CATCH_ALL{
+                     if (translateActiveException() != Detail::benchmarkErrorMsg) // benchmark errors have been reported, otherwise rethrow.
+                         std::rethrow_exception(std::current_exception());
+                 }
+             }
+ 
+             // sets lambda to be used in fun *and* executes benchmark!
+             template <typename Fun,
+                 typename std::enable_if<!Detail::is_related<Fun, Benchmark>::value, int>::type = 0>
+                 Benchmark & operator=(Fun func) {
+                 fun = Detail::BenchmarkFunction(func);
+                 run();
+                 return *this;
+             }
+ 
+             explicit operator bool() {
+                 return true;
+             }
+ 
+         private:
+             Detail::BenchmarkFunction fun;
+             std::string name;
+         };
+     }
+ } // namespace Catch
+ 
+ #define INTERNAL_CATCH_GET_1_ARG(arg1, arg2, ...) arg1
+ #define INTERNAL_CATCH_GET_2_ARG(arg1, arg2, ...) arg2
+ 
+ #define INTERNAL_CATCH_BENCHMARK(BenchmarkName, name, benchmarkIndex)\
+     if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
+         BenchmarkName = [&](int benchmarkIndex)
+ 
+ #define INTERNAL_CATCH_BENCHMARK_ADVANCED(BenchmarkName, name)\
+     if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
+         BenchmarkName = [&]
+ 
+ // end catch_benchmark.hpp
+ // start catch_constructor.hpp
+ 
+ // Constructor and destructor helpers
+ 
+ 
+ #include <type_traits>
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+             template <typename T, bool Destruct>
+             struct ObjectStorage
+             {
+                 ObjectStorage() : data() {}
+ 
+                 ObjectStorage(const ObjectStorage& other)
+                 {
+                     new(&data) T(other.stored_object());
+                 }
+ 
+                 ObjectStorage(ObjectStorage&& other)
+                 {
+                     new(&data) T(std::move(other.stored_object()));
+                 }
+ 
+                 ~ObjectStorage() { destruct_on_exit<T>(); }
+ 
+                 template <typename... Args>
+                 void construct(Args&&... args)
+                 {
+                     new (&data) T(std::forward<Args>(args)...);
+                 }
+ 
+                 template <bool AllowManualDestruction = !Destruct>
+                 typename std::enable_if<AllowManualDestruction>::type destruct()
+                 {
+                     stored_object().~T();
+                 }
+ 
+             private:
+                 // If this is a constructor benchmark, destruct the underlying object
+                 template <typename U>
+                 void destruct_on_exit(typename std::enable_if<Destruct, U>::type* = 0) { destruct<true>(); }
+                 // Otherwise, don't
+                 template <typename U>
+                 void destruct_on_exit(typename std::enable_if<!Destruct, U>::type* = 0) { }
+ 
+                 T& stored_object() {
+                     return *static_cast<T*>(static_cast<void*>(&data));
+                 }
+ 
+                 T const& stored_object() const {
+                     return *static_cast<T*>(static_cast<void*>(&data));
+                 }
+ 
+                 struct { alignas(T) unsigned char data[sizeof(T)]; }  data;
+             };
+         }
+ 
+         template <typename T>
+         using storage_for = Detail::ObjectStorage<T, true>;
+ 
+         template <typename T>
+         using destructable_object = Detail::ObjectStorage<T, false>;
+     }
+ }
+ 
+ // end catch_constructor.hpp
+ // end catch_benchmarking_all.hpp
+ #endif
+ 
+ #endif // ! CATCH_CONFIG_IMPL_ONLY
+ 
+ #ifdef CATCH_IMPL
+ // start catch_impl.hpp
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wweak-vtables"
+ #endif
+ 
+ // Keep these here for external reporters
+ // start catch_test_case_tracker.h
+ 
+ #include <string>
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ namespace TestCaseTracking {
+ 
+     struct NameAndLocation {
+         std::string name;
+         SourceLineInfo location;
+ 
+         NameAndLocation( std::string const& _name, SourceLineInfo const& _location );
+         friend bool operator==(NameAndLocation const& lhs, NameAndLocation const& rhs) {
+             return lhs.name == rhs.name
+                 && lhs.location == rhs.location;
+         }
+     };
+ 
+     class ITracker;
+ 
+     using ITrackerPtr = std::shared_ptr<ITracker>;
+ 
+     class  ITracker {
+         NameAndLocation m_nameAndLocation;
+ 
+     public:
+         ITracker(NameAndLocation const& nameAndLoc) :
+             m_nameAndLocation(nameAndLoc)
+         {}
+ 
+         // static queries
+         NameAndLocation const& nameAndLocation() const {
+             return m_nameAndLocation;
+         }
+ 
+         virtual ~ITracker();
+ 
+         // dynamic queries
+         virtual bool isComplete() const = 0; // Successfully completed or failed
+         virtual bool isSuccessfullyCompleted() const = 0;
+         virtual bool isOpen() const = 0; // Started but not complete
+         virtual bool hasChildren() const = 0;
+         virtual bool hasStarted() const = 0;
+ 
+         virtual ITracker& parent() = 0;
+ 
+         // actions
+         virtual void close() = 0; // Successfully complete
+         virtual void fail() = 0;
+         virtual void markAsNeedingAnotherRun() = 0;
+ 
+         virtual void addChild( ITrackerPtr const& child ) = 0;
+         virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) = 0;
+         virtual void openChild() = 0;
+ 
+         // Debug/ checking
+         virtual bool isSectionTracker() const = 0;
+         virtual bool isGeneratorTracker() const = 0;
+     };
+ 
+     class TrackerContext {
+ 
+         enum RunState {
+             NotStarted,
+             Executing,
+             CompletedCycle
+         };
+ 
+         ITrackerPtr m_rootTracker;
+         ITracker* m_currentTracker = nullptr;
+         RunState m_runState = NotStarted;
+ 
+     public:
+ 
+         ITracker& startRun();
+         void endRun();
+ 
+         void startCycle();
+         void completeCycle();
+ 
+         bool completedCycle() const;
+         ITracker& currentTracker();
+         void setCurrentTracker( ITracker* tracker );
+     };
+ 
+     class TrackerBase : public ITracker {
+     protected:
+         enum CycleState {
+             NotStarted,
+             Executing,
+             ExecutingChildren,
+             NeedsAnotherRun,
+             CompletedSuccessfully,
+             Failed
+         };
+ 
+         using Children = std::vector<ITrackerPtr>;
+         TrackerContext& m_ctx;
+         ITracker* m_parent;
+         Children m_children;
+         CycleState m_runState = NotStarted;
+ 
+     public:
+         TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
+ 
+         bool isComplete() const override;
+         bool isSuccessfullyCompleted() const override;
+         bool isOpen() const override;
+         bool hasChildren() const override;
+         bool hasStarted() const override {
+             return m_runState != NotStarted;
+         }
+ 
+         void addChild( ITrackerPtr const& child ) override;
+ 
+         ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) override;
+         ITracker& parent() override;
+ 
+         void openChild() override;
+ 
+         bool isSectionTracker() const override;
+         bool isGeneratorTracker() const override;
+ 
+         void open();
+ 
+         void close() override;
+         void fail() override;
+         void markAsNeedingAnotherRun() override;
+ 
+     private:
+         void moveToParent();
+         void moveToThis();
+     };
+ 
+     class SectionTracker : public TrackerBase {
+         std::vector<std::string> m_filters;
+         std::string m_trimmed_name;
+     public:
+         SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
+ 
+         bool isSectionTracker() const override;
+ 
+         bool isComplete() const override;
+ 
+         static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation );
+ 
+         void tryOpen();
+ 
+         void addInitialFilters( std::vector<std::string> const& filters );
+         void addNextFilters( std::vector<std::string> const& filters );
+         //! Returns filters active in this tracker
+         std::vector<std::string> const& getFilters() const;
+         //! Returns whitespace-trimmed name of the tracked section
+         std::string const& trimmedName() const;
+     };
+ 
+ } // namespace TestCaseTracking
+ 
+ using TestCaseTracking::ITracker;
+ using TestCaseTracking::TrackerContext;
+ using TestCaseTracking::SectionTracker;
+ 
+ } // namespace Catch
+ 
+ // end catch_test_case_tracker.h
+ 
+ // start catch_leak_detector.h
+ 
+ namespace Catch {
+ 
+     struct LeakDetector {
+         LeakDetector();
+         ~LeakDetector();
+     };
+ 
+ }
+ // end catch_leak_detector.h
+ // Cpp files will be included in the single-header file here
+ // start catch_stats.cpp
+ 
+ // Statistical analysis tools
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ 
+ #include <cassert>
+ #include <random>
+ 
+ #if defined(CATCH_CONFIG_USE_ASYNC)
+ #include <future>
+ #endif
+ 
+ namespace {
+     double erf_inv(double x) {
+         // Code accompanying the article "Approximating the erfinv function" in GPU Computing Gems, Volume 2
+         double w, p;
+ 
+         w = -log((1.0 - x) * (1.0 + x));
+ 
+         if (w < 6.250000) {
+             w = w - 3.125000;
+             p = -3.6444120640178196996e-21;
+             p = -1.685059138182016589e-19 + p * w;
+             p = 1.2858480715256400167e-18 + p * w;
+             p = 1.115787767802518096e-17 + p * w;
+             p = -1.333171662854620906e-16 + p * w;
+             p = 2.0972767875968561637e-17 + p * w;
+             p = 6.6376381343583238325e-15 + p * w;
+             p = -4.0545662729752068639e-14 + p * w;
+             p = -8.1519341976054721522e-14 + p * w;
+             p = 2.6335093153082322977e-12 + p * w;
+             p = -1.2975133253453532498e-11 + p * w;
+             p = -5.4154120542946279317e-11 + p * w;
+             p = 1.051212273321532285e-09 + p * w;
+             p = -4.1126339803469836976e-09 + p * w;
+             p = -2.9070369957882005086e-08 + p * w;
+             p = 4.2347877827932403518e-07 + p * w;
+             p = -1.3654692000834678645e-06 + p * w;
+             p = -1.3882523362786468719e-05 + p * w;
+             p = 0.0001867342080340571352 + p * w;
+             p = -0.00074070253416626697512 + p * w;
+             p = -0.0060336708714301490533 + p * w;
+             p = 0.24015818242558961693 + p * w;
+             p = 1.6536545626831027356 + p * w;
+         } else if (w < 16.000000) {
+             w = sqrt(w) - 3.250000;
+             p = 2.2137376921775787049e-09;
+             p = 9.0756561938885390979e-08 + p * w;
+             p = -2.7517406297064545428e-07 + p * w;
+             p = 1.8239629214389227755e-08 + p * w;
+             p = 1.5027403968909827627e-06 + p * w;
+             p = -4.013867526981545969e-06 + p * w;
+             p = 2.9234449089955446044e-06 + p * w;
+             p = 1.2475304481671778723e-05 + p * w;
+             p = -4.7318229009055733981e-05 + p * w;
+             p = 6.8284851459573175448e-05 + p * w;
+             p = 2.4031110387097893999e-05 + p * w;
+             p = -0.0003550375203628474796 + p * w;
+             p = 0.00095328937973738049703 + p * w;
+             p = -0.0016882755560235047313 + p * w;
+             p = 0.0024914420961078508066 + p * w;
+             p = -0.0037512085075692412107 + p * w;
+             p = 0.005370914553590063617 + p * w;
+             p = 1.0052589676941592334 + p * w;
+             p = 3.0838856104922207635 + p * w;
+         } else {
+             w = sqrt(w) - 5.000000;
+             p = -2.7109920616438573243e-11;
+             p = -2.5556418169965252055e-10 + p * w;
+             p = 1.5076572693500548083e-09 + p * w;
+             p = -3.7894654401267369937e-09 + p * w;
+             p = 7.6157012080783393804e-09 + p * w;
+             p = -1.4960026627149240478e-08 + p * w;
+             p = 2.9147953450901080826e-08 + p * w;
+             p = -6.7711997758452339498e-08 + p * w;
+             p = 2.2900482228026654717e-07 + p * w;
+             p = -9.9298272942317002539e-07 + p * w;
+             p = 4.5260625972231537039e-06 + p * w;
+             p = -1.9681778105531670567e-05 + p * w;
+             p = 7.5995277030017761139e-05 + p * w;
+             p = -0.00021503011930044477347 + p * w;
+             p = -0.00013871931833623122026 + p * w;
+             p = 1.0103004648645343977 + p * w;
+             p = 4.8499064014085844221 + p * w;
+         }
+         return p * x;
+     }
+ 
+     double standard_deviation(std::vector<double>::iterator first, std::vector<double>::iterator last) {
+         auto m = Catch::Benchmark::Detail::mean(first, last);
+         double variance = std::accumulate(first, last, 0., [m](double a, double b) {
+             double diff = b - m;
+             return a + diff * diff;
+             }) / (last - first);
+             return std::sqrt(variance);
+     }
+ 
+ }
+ 
+ namespace Catch {
+     namespace Benchmark {
+         namespace Detail {
+ 
+             double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last) {
+                 auto count = last - first;
+                 double idx = (count - 1) * k / static_cast<double>(q);
+                 int j = static_cast<int>(idx);
+                 double g = idx - j;
+                 std::nth_element(first, first + j, last);
+                 auto xj = first[j];
+                 if (g == 0) return xj;
+ 
+                 auto xj1 = *std::min_element(first + (j + 1), last);
+                 return xj + g * (xj1 - xj);
+             }
+ 
+             double erfc_inv(double x) {
+                 return erf_inv(1.0 - x);
+             }
+ 
+             double normal_quantile(double p) {
+                 static const double ROOT_TWO = std::sqrt(2.0);
+ 
+                 double result = 0.0;
+                 assert(p >= 0 && p <= 1);
+                 if (p < 0 || p > 1) {
+                     return result;
+                 }
+ 
+                 result = -erfc_inv(2.0 * p);
+                 // result *= normal distribution standard deviation (1.0) * sqrt(2)
+                 result *= /*sd * */ ROOT_TWO;
+                 // result += normal disttribution mean (0)
+                 return result;
+             }
+ 
+             double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n) {
+                 double sb = stddev.point;
+                 double mn = mean.point / n;
+                 double mg_min = mn / 2.;
+                 double sg = (std::min)(mg_min / 4., sb / std::sqrt(n));
+                 double sg2 = sg * sg;
+                 double sb2 = sb * sb;
+ 
+                 auto c_max = [n, mn, sb2, sg2](double x) -> double {
+                     double k = mn - x;
+                     double d = k * k;
+                     double nd = n * d;
+                     double k0 = -n * nd;
+                     double k1 = sb2 - n * sg2 + nd;
+                     double det = k1 * k1 - 4 * sg2 * k0;
+                     return (int)(-2. * k0 / (k1 + std::sqrt(det)));
+                 };
+ 
+                 auto var_out = [n, sb2, sg2](double c) {
+                     double nc = n - c;
+                     return (nc / n) * (sb2 - nc * sg2);
+                 };
+ 
+                 return (std::min)(var_out(1), var_out((std::min)(c_max(0.), c_max(mg_min)))) / sb2;
+             }
+ 
+             bootstrap_analysis analyse_samples(double confidence_level, int n_resamples, std::vector<double>::iterator first, std::vector<double>::iterator last) {
+                 CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+                 CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
+                 static std::random_device entropy;
+                 CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+ 
+                 auto n = static_cast<int>(last - first); // seriously, one can't use integral types without hell in C++
+ 
+                 auto mean = &Detail::mean<std::vector<double>::iterator>;
+                 auto stddev = &standard_deviation;
+ 
+ #if defined(CATCH_CONFIG_USE_ASYNC)
+                 auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
+                     auto seed = entropy();
+                     return std::async(std::launch::async, [=] {
+                         std::mt19937 rng(seed);
+                         auto resampled = resample(rng, n_resamples, first, last, f);
+                         return bootstrap(confidence_level, first, last, resampled, f);
+                     });
+                 };
+ 
+                 auto mean_future = Estimate(mean);
+                 auto stddev_future = Estimate(stddev);
+ 
+                 auto mean_estimate = mean_future.get();
+                 auto stddev_estimate = stddev_future.get();
+ #else
+                 auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
+                     auto seed = entropy();
+                     std::mt19937 rng(seed);
+                     auto resampled = resample(rng, n_resamples, first, last, f);
+                     return bootstrap(confidence_level, first, last, resampled, f);
+                 };
+ 
+                 auto mean_estimate = Estimate(mean);
+                 auto stddev_estimate = Estimate(stddev);
+ #endif // CATCH_USE_ASYNC
+ 
+                 double outlier_variance = Detail::outlier_variance(mean_estimate, stddev_estimate, n);
+ 
+                 return { mean_estimate, stddev_estimate, outlier_variance };
+             }
+         } // namespace Detail
+     } // namespace Benchmark
+ } // namespace Catch
+ 
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ // end catch_stats.cpp
+ // start catch_approx.cpp
+ 
+ #include <cmath>
+ #include <limits>
+ 
+ namespace {
+ 
+ // Performs equivalent check of std::fabs(lhs - rhs) <= margin
+ // But without the subtraction to allow for INFINITY in comparison
+ bool marginComparison(double lhs, double rhs, double margin) {
+     return (lhs + margin >= rhs) && (rhs + margin >= lhs);
+ }
+ 
+ }
+ 
+ namespace Catch {
+ namespace Detail {
+ 
+     Approx::Approx ( double value )
+     :   m_epsilon( std::numeric_limits<float>::epsilon()*100 ),
+         m_margin( 0.0 ),
+         m_scale( 0.0 ),
+         m_value( value )
+     {}
+ 
+     Approx Approx::custom() {
+         return Approx( 0 );
+     }
+ 
+     Approx Approx::operator-() const {
+         auto temp(*this);
+         temp.m_value = -temp.m_value;
+         return temp;
+     }
+ 
+     std::string Approx::toString() const {
+         ReusableStringStream rss;
+         rss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
+         return rss.str();
+     }
+ 
+     bool Approx::equalityComparisonImpl(const double other) const {
+         // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
+         // Thanks to Richard Harris for his help refining the scaled margin value
+         return marginComparison(m_value, other, m_margin)
+             || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(std::isinf(m_value)? 0 : m_value)));
+     }
+ 
+     void Approx::setMargin(double newMargin) {
+         CATCH_ENFORCE(newMargin >= 0,
+             "Invalid Approx::margin: " << newMargin << '.'
+             << " Approx::Margin has to be non-negative.");
+         m_margin = newMargin;
+     }
+ 
+     void Approx::setEpsilon(double newEpsilon) {
+         CATCH_ENFORCE(newEpsilon >= 0 && newEpsilon <= 1.0,
+             "Invalid Approx::epsilon: " << newEpsilon << '.'
+             << " Approx::epsilon has to be in [0, 1]");
+         m_epsilon = newEpsilon;
+     }
+ 
+ } // end namespace Detail
+ 
+ namespace literals {
+     Detail::Approx operator "" _a(long double val) {
+         return Detail::Approx(val);
+     }
+     Detail::Approx operator "" _a(unsigned long long val) {
+         return Detail::Approx(val);
+     }
+ } // end namespace literals
+ 
+ std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
+     return value.toString();
+ }
+ 
+ } // end namespace Catch
+ // end catch_approx.cpp
+ // start catch_assertionhandler.cpp
+ 
+ // start catch_debugger.h
+ 
+ namespace Catch {
+     bool isDebuggerActive();
+ }
+ 
+ #ifdef CATCH_PLATFORM_MAC
+ 
+     #if defined(__i386__) || defined(__x86_64__)
+         #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
+     #elif defined(__aarch64__)
+         #define CATCH_TRAP()  __asm__(".inst 0xd43e0000")
+     #endif
+ 
+ #elif defined(CATCH_PLATFORM_IPHONE)
+ 
+     // use inline assembler
+     #if defined(__i386__) || defined(__x86_64__)
+         #define CATCH_TRAP()  __asm__("int $3")
+     #elif defined(__aarch64__)
+         #define CATCH_TRAP()  __asm__(".inst 0xd4200000")
+     #elif defined(__arm__) && !defined(__thumb__)
+         #define CATCH_TRAP()  __asm__(".inst 0xe7f001f0")
+     #elif defined(__arm__) &&  defined(__thumb__)
+         #define CATCH_TRAP()  __asm__(".inst 0xde01")
+     #endif
+ 
+ #elif defined(CATCH_PLATFORM_LINUX)
+     // If we can use inline assembler, do it because this allows us to break
+     // directly at the location of the failing check instead of breaking inside
+     // raise() called from it, i.e. one stack frame below.
+     #if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
+         #define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
+     #else // Fall back to the generic way.
+         #include <signal.h>
+ 
+         #define CATCH_TRAP() raise(SIGTRAP)
+     #endif
+ #elif defined(_MSC_VER)
+     #define CATCH_TRAP() __debugbreak()
+ #elif defined(__MINGW32__)
+     extern "C" __declspec(dllimport) void __stdcall DebugBreak();
+     #define CATCH_TRAP() DebugBreak()
+ #endif
+ 
+ #ifndef CATCH_BREAK_INTO_DEBUGGER
+     #ifdef CATCH_TRAP
+         #define CATCH_BREAK_INTO_DEBUGGER() []{ if( Catch::isDebuggerActive() ) { CATCH_TRAP(); } }()
+     #else
+         #define CATCH_BREAK_INTO_DEBUGGER() []{}()
+     #endif
+ #endif
+ 
+ // end catch_debugger.h
+ // start catch_run_context.h
+ 
+ // start catch_fatal_condition.h
+ 
+ #include <cassert>
+ 
+ namespace Catch {
+ 
+     // Wrapper for platform-specific fatal error (signals/SEH) handlers
+     //
+     // Tries to be cooperative with other handlers, and not step over
+     // other handlers. This means that unknown structured exceptions
+     // are passed on, previous signal handlers are called, and so on.
+     //
+     // Can only be instantiated once, and assumes that once a signal
+     // is caught, the binary will end up terminating. Thus, there
+     class FatalConditionHandler {
+         bool m_started = false;
+ 
+         // Install/disengage implementation for specific platform.
+         // Should be if-defed to work on current platform, can assume
+         // engage-disengage 1:1 pairing.
+         void engage_platform();
+         void disengage_platform();
+     public:
+         // Should also have platform-specific implementations as needed
+         FatalConditionHandler();
+         ~FatalConditionHandler();
+ 
+         void engage() {
+             assert(!m_started && "Handler cannot be installed twice.");
+             m_started = true;
+             engage_platform();
+         }
+ 
+         void disengage() {
+             assert(m_started && "Handler cannot be uninstalled without being installed first");
+             m_started = false;
+             disengage_platform();
+         }
+     };
+ 
+     //! Simple RAII guard for (dis)engaging the FatalConditionHandler
+     class FatalConditionHandlerGuard {
+         FatalConditionHandler* m_handler;
+     public:
+         FatalConditionHandlerGuard(FatalConditionHandler* handler):
+             m_handler(handler) {
+             m_handler->engage();
+         }
+         ~FatalConditionHandlerGuard() {
+             m_handler->disengage();
+         }
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_fatal_condition.h
+ #include <string>
+ 
+ namespace Catch {
+ 
+     struct IMutableContext;
+ 
+     ///////////////////////////////////////////////////////////////////////////
+ 
+     class RunContext : public IResultCapture, public IRunner {
+ 
+     public:
+         RunContext( RunContext const& ) = delete;
+         RunContext& operator =( RunContext const& ) = delete;
+ 
+         explicit RunContext( IConfigPtr const& _config, IStreamingReporterPtr&& reporter );
+ 
+         ~RunContext() override;
+ 
+         void testGroupStarting( std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount );
+         void testGroupEnded( std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount );
+ 
+         Totals runTest(TestCase const& testCase);
+ 
+         IConfigPtr config() const;
+         IStreamingReporter& reporter() const;
+ 
+     public: // IResultCapture
+ 
+         // Assertion handlers
+         void handleExpr
+                 (   AssertionInfo const& info,
+                     ITransientExpression const& expr,
+                     AssertionReaction& reaction ) override;
+         void handleMessage
+                 (   AssertionInfo const& info,
+                     ResultWas::OfType resultType,
+                     StringRef const& message,
+                     AssertionReaction& reaction ) override;
+         void handleUnexpectedExceptionNotThrown
+                 (   AssertionInfo const& info,
+                     AssertionReaction& reaction ) override;
+         void handleUnexpectedInflightException
+                 (   AssertionInfo const& info,
+                     std::string const& message,
+                     AssertionReaction& reaction ) override;
+         void handleIncomplete
+                 (   AssertionInfo const& info ) override;
+         void handleNonExpr
+                 (   AssertionInfo const &info,
+                     ResultWas::OfType resultType,
+                     AssertionReaction &reaction ) override;
+ 
+         bool sectionStarted( SectionInfo const& sectionInfo, Counts& assertions ) override;
+ 
+         void sectionEnded( SectionEndInfo const& endInfo ) override;
+         void sectionEndedEarly( SectionEndInfo const& endInfo ) override;
+ 
+         auto acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker& override;
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         void benchmarkPreparing( std::string const& name ) override;
+         void benchmarkStarting( BenchmarkInfo const& info ) override;
+         void benchmarkEnded( BenchmarkStats<> const& stats ) override;
+         void benchmarkFailed( std::string const& error ) override;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+         void pushScopedMessage( MessageInfo const& message ) override;
+         void popScopedMessage( MessageInfo const& message ) override;
+ 
+         void emplaceUnscopedMessage( MessageBuilder const& builder ) override;
+ 
+         std::string getCurrentTestName() const override;
+ 
+         const AssertionResult* getLastResult() const override;
+ 
+         void exceptionEarlyReported() override;
+ 
+         void handleFatalErrorCondition( StringRef message ) override;
+ 
+         bool lastAssertionPassed() override;
+ 
+         void assertionPassed() override;
+ 
+     public:
+         // !TBD We need to do this another way!
+         bool aborting() const final;
+ 
+     private:
+ 
+         void runCurrentTest( std::string& redirectedCout, std::string& redirectedCerr );
+         void invokeActiveTestCase();
+ 
+         void resetAssertionInfo();
+         bool testForMissingAssertions( Counts& assertions );
+ 
+         void assertionEnded( AssertionResult const& result );
+         void reportExpr
+                 (   AssertionInfo const &info,
+                     ResultWas::OfType resultType,
+                     ITransientExpression const *expr,
+                     bool negated );
+ 
+         void populateReaction( AssertionReaction& reaction );
+ 
+     private:
+ 
+         void handleUnfinishedSections();
+ 
+         TestRunInfo m_runInfo;
+         IMutableContext& m_context;
+         TestCase const* m_activeTestCase = nullptr;
+         ITracker* m_testCaseTracker = nullptr;
+         Option<AssertionResult> m_lastResult;
+ 
+         IConfigPtr m_config;
+         Totals m_totals;
+         IStreamingReporterPtr m_reporter;
+         std::vector<MessageInfo> m_messages;
+         std::vector<ScopedMessage> m_messageScopes; /* Keeps owners of so-called unscoped messages. */
+         AssertionInfo m_lastAssertionInfo;
+         std::vector<SectionEndInfo> m_unfinishedSections;
+         std::vector<ITracker*> m_activeSections;
+         TrackerContext m_trackerContext;
+         FatalConditionHandler m_fatalConditionhandler;
+         bool m_lastAssertionPassed = false;
+         bool m_shouldReportUnexpected = true;
+         bool m_includeSuccessfulResults;
+     };
+ 
+     void seedRng(IConfig const& config);
+     unsigned int rngSeed();
+ } // end namespace Catch
+ 
+ // end catch_run_context.h
+ namespace Catch {
+ 
+     namespace {
+         auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
+             expr.streamReconstructedExpression( os );
+             return os;
+         }
+     }
+ 
+     LazyExpression::LazyExpression( bool isNegated )
+     :   m_isNegated( isNegated )
+     {}
+ 
+     LazyExpression::LazyExpression( LazyExpression const& other ) : m_isNegated( other.m_isNegated ) {}
+ 
+     LazyExpression::operator bool() const {
+         return m_transientExpression != nullptr;
+     }
+ 
+     auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream& {
+         if( lazyExpr.m_isNegated )
+             os << "!";
+ 
+         if( lazyExpr ) {
+             if( lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression() )
+                 os << "(" << *lazyExpr.m_transientExpression << ")";
+             else
+                 os << *lazyExpr.m_transientExpression;
+         }
+         else {
+             os << "{** error - unchecked empty expression requested **}";
+         }
+         return os;
+     }
+ 
+     AssertionHandler::AssertionHandler
+         (   StringRef const& macroName,
+             SourceLineInfo const& lineInfo,
+             StringRef capturedExpression,
+             ResultDisposition::Flags resultDisposition )
+     :   m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition },
+         m_resultCapture( getResultCapture() )
+     {}
+ 
+     void AssertionHandler::handleExpr( ITransientExpression const& expr ) {
+         m_resultCapture.handleExpr( m_assertionInfo, expr, m_reaction );
+     }
+     void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef const& message) {
+         m_resultCapture.handleMessage( m_assertionInfo, resultType, message, m_reaction );
+     }
+ 
+     auto AssertionHandler::allowThrows() const -> bool {
+         return getCurrentContext().getConfig()->allowThrows();
+     }
+ 
+     void AssertionHandler::complete() {
+         setCompleted();
+         if( m_reaction.shouldDebugBreak ) {
+ 
+             // If you find your debugger stopping you here then go one level up on the
+             // call-stack for the code that caused it (typically a failed assertion)
+ 
+             // (To go back to the test and change execution, jump over the throw, next)
+             CATCH_BREAK_INTO_DEBUGGER();
+         }
+         if (m_reaction.shouldThrow) {
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+             throw Catch::TestFailureException();
+ #else
+             CATCH_ERROR( "Test failure requires aborting test!" );
+ #endif
+         }
+     }
+     void AssertionHandler::setCompleted() {
+         m_completed = true;
+     }
+ 
+     void AssertionHandler::handleUnexpectedInflightException() {
+         m_resultCapture.handleUnexpectedInflightException( m_assertionInfo, Catch::translateActiveException(), m_reaction );
+     }
+ 
+     void AssertionHandler::handleExceptionThrownAsExpected() {
+         m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
+     }
+     void AssertionHandler::handleExceptionNotThrownAsExpected() {
+         m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
+     }
+ 
+     void AssertionHandler::handleUnexpectedExceptionNotThrown() {
+         m_resultCapture.handleUnexpectedExceptionNotThrown( m_assertionInfo, m_reaction );
+     }
+ 
+     void AssertionHandler::handleThrowingCallSkipped() {
+         m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
+     }
+ 
+     // This is the overload that takes a string and infers the Equals matcher from it
+     // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
+     void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString  ) {
+         handleExceptionMatchExpr( handler, Matchers::Equals( str ), matcherString );
+     }
+ 
+ } // namespace Catch
+ // end catch_assertionhandler.cpp
+ // start catch_assertionresult.cpp
+ 
+ namespace Catch {
+     AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression):
+         lazyExpression(_lazyExpression),
+         resultType(_resultType) {}
+ 
+     std::string AssertionResultData::reconstructExpression() const {
+ 
+         if( reconstructedExpression.empty() ) {
+             if( lazyExpression ) {
+                 ReusableStringStream rss;
+                 rss << lazyExpression;
+                 reconstructedExpression = rss.str();
+             }
+         }
+         return reconstructedExpression;
+     }
+ 
+     AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData const& data )
+     :   m_info( info ),
+         m_resultData( data )
+     {}
+ 
+     // Result was a success
+     bool AssertionResult::succeeded() const {
+         return Catch::isOk( m_resultData.resultType );
+     }
+ 
+     // Result was a success, or failure is suppressed
+     bool AssertionResult::isOk() const {
+         return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
+     }
+ 
+     ResultWas::OfType AssertionResult::getResultType() const {
+         return m_resultData.resultType;
+     }
+ 
+     bool AssertionResult::hasExpression() const {
+         return !m_info.capturedExpression.empty();
+     }
+ 
+     bool AssertionResult::hasMessage() const {
+         return !m_resultData.message.empty();
+     }
+ 
+     std::string AssertionResult::getExpression() const {
+         // Possibly overallocating by 3 characters should be basically free
+         std::string expr; expr.reserve(m_info.capturedExpression.size() + 3);
+         if (isFalseTest(m_info.resultDisposition)) {
+             expr += "!(";
+         }
+         expr += m_info.capturedExpression;
+         if (isFalseTest(m_info.resultDisposition)) {
+             expr += ')';
+         }
+         return expr;
+     }
+ 
+     std::string AssertionResult::getExpressionInMacro() const {
+         std::string expr;
+         if( m_info.macroName.empty() )
+             expr = static_cast<std::string>(m_info.capturedExpression);
+         else {
+             expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
+             expr += m_info.macroName;
+             expr += "( ";
+             expr += m_info.capturedExpression;
+             expr += " )";
+         }
+         return expr;
+     }
+ 
+     bool AssertionResult::hasExpandedExpression() const {
+         return hasExpression() && getExpandedExpression() != getExpression();
+     }
+ 
+     std::string AssertionResult::getExpandedExpression() const {
+         std::string expr = m_resultData.reconstructExpression();
+         return expr.empty()
+                 ? getExpression()
+                 : expr;
+     }
+ 
+     std::string AssertionResult::getMessage() const {
+         return m_resultData.message;
+     }
+     SourceLineInfo AssertionResult::getSourceInfo() const {
+         return m_info.lineInfo;
+     }
+ 
+     StringRef AssertionResult::getTestMacroName() const {
+         return m_info.macroName;
+     }
+ 
+ } // end namespace Catch
+ // end catch_assertionresult.cpp
+ // start catch_capture_matchers.cpp
+ 
+ namespace Catch {
+ 
+     using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
+ 
+     // This is the general overload that takes a any string matcher
+     // There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
+     // the Equals matcher (so the header does not mention matchers)
+     void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  ) {
+         std::string exceptionMessage = Catch::translateActiveException();
+         MatchExpr<std::string, StringMatcher const&> expr( exceptionMessage, matcher, matcherString );
+         handler.handleExpr( expr );
+     }
+ 
+ } // namespace Catch
+ // end catch_capture_matchers.cpp
+ // start catch_commandline.cpp
+ 
+ // start catch_commandline.h
+ 
+ // start catch_clara.h
+ 
+ // Use Catch's value for console width (store Clara's off to the side, if present)
+ #ifdef CLARA_CONFIG_CONSOLE_WIDTH
+ #define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+ #undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+ #endif
+ #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH-1
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wweak-vtables"
+ #pragma clang diagnostic ignored "-Wexit-time-destructors"
+ #pragma clang diagnostic ignored "-Wshadow"
+ #endif
+ 
+ // start clara.hpp
+ // Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
+ //
+ // Distributed under the Boost Software License, Version 1.0. (See accompanying
+ // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ //
+ // See https://github.com/philsquared/Clara for more details
+ 
+ // Clara v1.1.5
+ 
+ 
+ #ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
+ #define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
+ #endif
+ 
+ #ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+ #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
+ #endif
+ 
+ #ifndef CLARA_CONFIG_OPTIONAL_TYPE
+ #ifdef __has_include
+ #if __has_include(<optional>) && __cplusplus >= 201703L
+ #include <optional>
+ #define CLARA_CONFIG_OPTIONAL_TYPE std::optional
+ #endif
+ #endif
+ #endif
+ 
+ // ----------- #included from clara_textflow.hpp -----------
+ 
+ // TextFlowCpp
+ //
+ // A single-header library for wrapping and laying out basic text, by Phil Nash
+ //
+ // Distributed under the Boost Software License, Version 1.0. (See accompanying
+ // file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ //
+ // This project is hosted at https://github.com/philsquared/textflowcpp
+ 
+ 
+ #include <cassert>
+ #include <ostream>
+ #include <sstream>
+ #include <vector>
+ 
+ #ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+ #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
+ #endif
+ 
+ namespace Catch {
+ namespace clara {
+ namespace TextFlow {
+ 
+ inline auto isWhitespace(char c) -> bool {
+     static std::string chars = " \t\n\r";
+     return chars.find(c) != std::string::npos;
+ }
+ inline auto isBreakableBefore(char c) -> bool {
+     static std::string chars = "[({<|";
+     return chars.find(c) != std::string::npos;
+ }
+ inline auto isBreakableAfter(char c) -> bool {
+     static std::string chars = "])}>.,:;*+-=&/\\";
+     return chars.find(c) != std::string::npos;
+ }
+ 
+ class Columns;
+ 
+ class Column {
+     std::vector<std::string> m_strings;
+     size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
+     size_t m_indent = 0;
+     size_t m_initialIndent = std::string::npos;
+ 
+ public:
+     class iterator {
+         friend Column;
+ 
+         Column const& m_column;
+         size_t m_stringIndex = 0;
+         size_t m_pos = 0;
+ 
+         size_t m_len = 0;
+         size_t m_end = 0;
+         bool m_suffix = false;
+ 
+         iterator(Column const& column, size_t stringIndex)
+             : m_column(column),
+             m_stringIndex(stringIndex) {}
+ 
+         auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }
+ 
+         auto isBoundary(size_t at) const -> bool {
+             assert(at > 0);
+             assert(at <= line().size());
+ 
+             return at == line().size() ||
+                 (isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
+                 isBreakableBefore(line()[at]) ||
+                 isBreakableAfter(line()[at - 1]);
+         }
+ 
+         void calcLength() {
+             assert(m_stringIndex < m_column.m_strings.size());
+ 
+             m_suffix = false;
+             auto width = m_column.m_width - indent();
+             m_end = m_pos;
+             if (line()[m_pos] == '\n') {
+                 ++m_end;
+             }
+             while (m_end < line().size() && line()[m_end] != '\n')
+                 ++m_end;
+ 
+             if (m_end < m_pos + width) {
+                 m_len = m_end - m_pos;
+             } else {
+                 size_t len = width;
+                 while (len > 0 && !isBoundary(m_pos + len))
+                     --len;
+                 while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
+                     --len;
+ 
+                 if (len > 0) {
+                     m_len = len;
+                 } else {
+                     m_suffix = true;
+                     m_len = width - 1;
+                 }
+             }
+         }
+ 
+         auto indent() const -> size_t {
+             auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
+             return initial == std::string::npos ? m_column.m_indent : initial;
+         }
+ 
+         auto addIndentAndSuffix(std::string const &plain) const -> std::string {
+             return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
+         }
+ 
+     public:
+         using difference_type = std::ptrdiff_t;
+         using value_type = std::string;
+         using pointer = value_type * ;
+         using reference = value_type & ;
+         using iterator_category = std::forward_iterator_tag;
+ 
+         explicit iterator(Column const& column) : m_column(column) {
+             assert(m_column.m_width > m_column.m_indent);
+             assert(m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent);
+             calcLength();
+             if (m_len == 0)
+                 m_stringIndex++; // Empty string
+         }
+ 
+         auto operator *() const -> std::string {
+             assert(m_stringIndex < m_column.m_strings.size());
+             assert(m_pos <= m_end);
+             return addIndentAndSuffix(line().substr(m_pos, m_len));
+         }
+ 
+         auto operator ++() -> iterator& {
+             m_pos += m_len;
+             if (m_pos < line().size() && line()[m_pos] == '\n')
+                 m_pos += 1;
+             else
+                 while (m_pos < line().size() && isWhitespace(line()[m_pos]))
+                     ++m_pos;
+ 
+             if (m_pos == line().size()) {
+                 m_pos = 0;
+                 ++m_stringIndex;
+             }
+             if (m_stringIndex < m_column.m_strings.size())
+                 calcLength();
+             return *this;
+         }
+         auto operator ++(int) -> iterator {
+             iterator prev(*this);
+             operator++();
+             return prev;
+         }
+ 
+         auto operator ==(iterator const& other) const -> bool {
+             return
+                 m_pos == other.m_pos &&
+                 m_stringIndex == other.m_stringIndex &&
+                 &m_column == &other.m_column;
+         }
+         auto operator !=(iterator const& other) const -> bool {
+             return !operator==(other);
+         }
+     };
+     using const_iterator = iterator;
+ 
+     explicit Column(std::string const& text) { m_strings.push_back(text); }
+ 
+     auto width(size_t newWidth) -> Column& {
+         assert(newWidth > 0);
+         m_width = newWidth;
+         return *this;
+     }
+     auto indent(size_t newIndent) -> Column& {
+         m_indent = newIndent;
+         return *this;
+     }
+     auto initialIndent(size_t newIndent) -> Column& {
+         m_initialIndent = newIndent;
+         return *this;
+     }
+ 
+     auto width() const -> size_t { return m_width; }
+     auto begin() const -> iterator { return iterator(*this); }
+     auto end() const -> iterator { return { *this, m_strings.size() }; }
+ 
+     inline friend std::ostream& operator << (std::ostream& os, Column const& col) {
+         bool first = true;
+         for (auto line : col) {
+             if (first)
+                 first = false;
+             else
+                 os << "\n";
+             os << line;
+         }
+         return os;
+     }
+ 
+     auto operator + (Column const& other)->Columns;
+ 
+     auto toString() const -> std::string {
+         std::ostringstream oss;
+         oss << *this;
+         return oss.str();
+     }
+ };
+ 
+ class Spacer : public Column {
+ 
+ public:
+     explicit Spacer(size_t spaceWidth) : Column("") {
+         width(spaceWidth);
+     }
+ };
+ 
+ class Columns {
+     std::vector<Column> m_columns;
+ 
+ public:
+ 
+     class iterator {
+         friend Columns;
+         struct EndTag {};
+ 
+         std::vector<Column> const& m_columns;
+         std::vector<Column::iterator> m_iterators;
+         size_t m_activeIterators;
+ 
+         iterator(Columns const& columns, EndTag)
+             : m_columns(columns.m_columns),
+             m_activeIterators(0) {
+             m_iterators.reserve(m_columns.size());
+ 
+             for (auto const& col : m_columns)
+                 m_iterators.push_back(col.end());
+         }
+ 
+     public:
+         using difference_type = std::ptrdiff_t;
+         using value_type = std::string;
+         using pointer = value_type * ;
+         using reference = value_type & ;
+         using iterator_category = std::forward_iterator_tag;
+ 
+         explicit iterator(Columns const& columns)
+             : m_columns(columns.m_columns),
+             m_activeIterators(m_columns.size()) {
+             m_iterators.reserve(m_columns.size());
+ 
+             for (auto const& col : m_columns)
+                 m_iterators.push_back(col.begin());
+         }
+ 
+         auto operator ==(iterator const& other) const -> bool {
+             return m_iterators == other.m_iterators;
+         }
+         auto operator !=(iterator const& other) const -> bool {
+             return m_iterators != other.m_iterators;
+         }
+         auto operator *() const -> std::string {
+             std::string row, padding;
+ 
+             for (size_t i = 0; i < m_columns.size(); ++i) {
+                 auto width = m_columns[i].width();
+                 if (m_iterators[i] != m_columns[i].end()) {
+                     std::string col = *m_iterators[i];
+                     row += padding + col;
+                     if (col.size() < width)
+                         padding = std::string(width - col.size(), ' ');
+                     else
+                         padding = "";
+                 } else {
+                     padding += std::string(width, ' ');
+                 }
+             }
+             return row;
+         }
+         auto operator ++() -> iterator& {
+             for (size_t i = 0; i < m_columns.size(); ++i) {
+                 if (m_iterators[i] != m_columns[i].end())
+                     ++m_iterators[i];
+             }
+             return *this;
+         }
+         auto operator ++(int) -> iterator {
+             iterator prev(*this);
+             operator++();
+             return prev;
+         }
+     };
+     using const_iterator = iterator;
+ 
+     auto begin() const -> iterator { return iterator(*this); }
+     auto end() const -> iterator { return { *this, iterator::EndTag() }; }
+ 
+     auto operator += (Column const& col) -> Columns& {
+         m_columns.push_back(col);
+         return *this;
+     }
+     auto operator + (Column const& col) -> Columns {
+         Columns combined = *this;
+         combined += col;
+         return combined;
+     }
+ 
+     inline friend std::ostream& operator << (std::ostream& os, Columns const& cols) {
+ 
+         bool first = true;
+         for (auto line : cols) {
+             if (first)
+                 first = false;
+             else
+                 os << "\n";
+             os << line;
+         }
+         return os;
+     }
+ 
+     auto toString() const -> std::string {
+         std::ostringstream oss;
+         oss << *this;
+         return oss.str();
+     }
+ };
+ 
+ inline auto Column::operator + (Column const& other) -> Columns {
+     Columns cols;
+     cols += *this;
+     cols += other;
+     return cols;
+ }
+ }
+ 
+ }
+ }
+ 
+ // ----------- end of #include from clara_textflow.hpp -----------
+ // ........... back in clara.hpp
+ 
+ #include <cctype>
+ #include <string>
+ #include <memory>
+ #include <set>
+ #include <algorithm>
+ 
+ #if !defined(CATCH_PLATFORM_WINDOWS) && ( defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) )
+ #define CATCH_PLATFORM_WINDOWS
+ #endif
+ 
+ namespace Catch { namespace clara {
+ namespace detail {
+ 
+     // Traits for extracting arg and return type of lambdas (for single argument lambdas)
+     template<typename L>
+     struct UnaryLambdaTraits : UnaryLambdaTraits<decltype( &L::operator() )> {};
+ 
+     template<typename ClassT, typename ReturnT, typename... Args>
+     struct UnaryLambdaTraits<ReturnT( ClassT::* )( Args... ) const> {
+         static const bool isValid = false;
+     };
+ 
+     template<typename ClassT, typename ReturnT, typename ArgT>
+     struct UnaryLambdaTraits<ReturnT( ClassT::* )( ArgT ) const> {
+         static const bool isValid = true;
+         using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;
+         using ReturnType = ReturnT;
+     };
+ 
+     class TokenStream;
+ 
+     // Transport for raw args (copied from main args, or supplied via init list for testing)
+     class Args {
+         friend TokenStream;
+         std::string m_exeName;
+         std::vector<std::string> m_args;
+ 
+     public:
+         Args( int argc, char const* const* argv )
+             : m_exeName(argv[0]),
+               m_args(argv + 1, argv + argc) {}
+ 
+         Args( std::initializer_list<std::string> args )
+         :   m_exeName( *args.begin() ),
+             m_args( args.begin()+1, args.end() )
+         {}
+ 
+         auto exeName() const -> std::string {
+             return m_exeName;
+         }
+     };
+ 
+     // Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
+     // may encode an option + its argument if the : or = form is used
+     enum class TokenType {
+         Option, Argument
+     };
+     struct Token {
+         TokenType type;
+         std::string token;
+     };
+ 
+     inline auto isOptPrefix( char c ) -> bool {
+         return c == '-'
+ #ifdef CATCH_PLATFORM_WINDOWS
+             || c == '/'
+ #endif
+         ;
+     }
+ 
+     // Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
+     class TokenStream {
+         using Iterator = std::vector<std::string>::const_iterator;
+         Iterator it;
+         Iterator itEnd;
+         std::vector<Token> m_tokenBuffer;
+ 
+         void loadBuffer() {
+             m_tokenBuffer.resize( 0 );
+ 
+             // Skip any empty strings
+             while( it != itEnd && it->empty() )
+                 ++it;
+ 
+             if( it != itEnd ) {
+                 auto const &next = *it;
+                 if( isOptPrefix( next[0] ) ) {
+                     auto delimiterPos = next.find_first_of( " :=" );
+                     if( delimiterPos != std::string::npos ) {
+                         m_tokenBuffer.push_back( { TokenType::Option, next.substr( 0, delimiterPos ) } );
+                         m_tokenBuffer.push_back( { TokenType::Argument, next.substr( delimiterPos + 1 ) } );
+                     } else {
+                         if( next[1] != '-' && next.size() > 2 ) {
+                             std::string opt = "- ";
+                             for( size_t i = 1; i < next.size(); ++i ) {
+                                 opt[1] = next[i];
+                                 m_tokenBuffer.push_back( { TokenType::Option, opt } );
+                             }
+                         } else {
+                             m_tokenBuffer.push_back( { TokenType::Option, next } );
+                         }
+                     }
+                 } else {
+                     m_tokenBuffer.push_back( { TokenType::Argument, next } );
+                 }
+             }
+         }
+ 
+     public:
+         explicit TokenStream( Args const &args ) : TokenStream( args.m_args.begin(), args.m_args.end() ) {}
+ 
+         TokenStream( Iterator it, Iterator itEnd ) : it( it ), itEnd( itEnd ) {
+             loadBuffer();
+         }
+ 
+         explicit operator bool() const {
+             return !m_tokenBuffer.empty() || it != itEnd;
+         }
+ 
+         auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }
+ 
+         auto operator*() const -> Token {
+             assert( !m_tokenBuffer.empty() );
+             return m_tokenBuffer.front();
+         }
+ 
+         auto operator->() const -> Token const * {
+             assert( !m_tokenBuffer.empty() );
+             return &m_tokenBuffer.front();
+         }
+ 
+         auto operator++() -> TokenStream & {
+             if( m_tokenBuffer.size() >= 2 ) {
+                 m_tokenBuffer.erase( m_tokenBuffer.begin() );
+             } else {
+                 if( it != itEnd )
+                     ++it;
+                 loadBuffer();
+             }
+             return *this;
+         }
+     };
+ 
+     class ResultBase {
+     public:
+         enum Type {
+             Ok, LogicError, RuntimeError
+         };
+ 
+     protected:
+         ResultBase( Type type ) : m_type( type ) {}
+         virtual ~ResultBase() = default;
+ 
+         virtual void enforceOk() const = 0;
+ 
+         Type m_type;
+     };
+ 
+     template<typename T>
+     class ResultValueBase : public ResultBase {
+     public:
+         auto value() const -> T const & {
+             enforceOk();
+             return m_value;
+         }
+ 
+     protected:
+         ResultValueBase( Type type ) : ResultBase( type ) {}
+ 
+         ResultValueBase( ResultValueBase const &other ) : ResultBase( other ) {
+             if( m_type == ResultBase::Ok )
+                 new( &m_value ) T( other.m_value );
+         }
+ 
+         ResultValueBase( Type, T const &value ) : ResultBase( Ok ) {
+             new( &m_value ) T( value );
+         }
+ 
+         auto operator=( ResultValueBase const &other ) -> ResultValueBase & {
+             if( m_type == ResultBase::Ok )
+                 m_value.~T();
+             ResultBase::operator=(other);
+             if( m_type == ResultBase::Ok )
+                 new( &m_value ) T( other.m_value );
+             return *this;
+         }
+ 
+         ~ResultValueBase() override {
+             if( m_type == Ok )
+                 m_value.~T();
+         }
+ 
+         union {
+             T m_value;
+         };
+     };
+ 
+     template<>
+     class ResultValueBase<void> : public ResultBase {
+     protected:
+         using ResultBase::ResultBase;
+     };
+ 
+     template<typename T = void>
+     class BasicResult : public ResultValueBase<T> {
+     public:
+         template<typename U>
+         explicit BasicResult( BasicResult<U> const &other )
+         :   ResultValueBase<T>( other.type() ),
+             m_errorMessage( other.errorMessage() )
+         {
+             assert( type() != ResultBase::Ok );
+         }
+ 
+         template<typename U>
+         static auto ok( U const &value ) -> BasicResult { return { ResultBase::Ok, value }; }
+         static auto ok() -> BasicResult { return { ResultBase::Ok }; }
+         static auto logicError( std::string const &message ) -> BasicResult { return { ResultBase::LogicError, message }; }
+         static auto runtimeError( std::string const &message ) -> BasicResult { return { ResultBase::RuntimeError, message }; }
+ 
+         explicit operator bool() const { return m_type == ResultBase::Ok; }
+         auto type() const -> ResultBase::Type { return m_type; }
+         auto errorMessage() const -> std::string { return m_errorMessage; }
+ 
+     protected:
+         void enforceOk() const override {
+ 
+             // Errors shouldn't reach this point, but if they do
+             // the actual error message will be in m_errorMessage
+             assert( m_type != ResultBase::LogicError );
+             assert( m_type != ResultBase::RuntimeError );
+             if( m_type != ResultBase::Ok )
+                 std::abort();
+         }
+ 
+         std::string m_errorMessage; // Only populated if resultType is an error
+ 
+         BasicResult( ResultBase::Type type, std::string const &message )
+         :   ResultValueBase<T>(type),
+             m_errorMessage(message)
+         {
+             assert( m_type != ResultBase::Ok );
+         }
+ 
+         using ResultValueBase<T>::ResultValueBase;
+         using ResultBase::m_type;
+     };
+ 
+     enum class ParseResultType {
+         Matched, NoMatch, ShortCircuitAll, ShortCircuitSame
+     };
+ 
+     class ParseState {
+     public:
+ 
+         ParseState( ParseResultType type, TokenStream const &remainingTokens )
+         : m_type(type),
+           m_remainingTokens( remainingTokens )
+         {}
+ 
+         auto type() const -> ParseResultType { return m_type; }
+         auto remainingTokens() const -> TokenStream { return m_remainingTokens; }
+ 
+     private:
+         ParseResultType m_type;
+         TokenStream m_remainingTokens;
+     };
+ 
+     using Result = BasicResult<void>;
+     using ParserResult = BasicResult<ParseResultType>;
+     using InternalParseResult = BasicResult<ParseState>;
+ 
+     struct HelpColumns {
+         std::string left;
+         std::string right;
+     };
+ 
+     template<typename T>
+     inline auto convertInto( std::string const &source, T& target ) -> ParserResult {
+         std::stringstream ss;
+         ss << source;
+         ss >> target;
+         if( ss.fail() )
+             return ParserResult::runtimeError( "Unable to convert '" + source + "' to destination type" );
+         else
+             return ParserResult::ok( ParseResultType::Matched );
+     }
+     inline auto convertInto( std::string const &source, std::string& target ) -> ParserResult {
+         target = source;
+         return ParserResult::ok( ParseResultType::Matched );
+     }
+     inline auto convertInto( std::string const &source, bool &target ) -> ParserResult {
+         std::string srcLC = source;
+         std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( unsigned char c ) { return static_cast<char>( std::tolower(c) ); } );
+         if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
+             target = true;
+         else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
+             target = false;
+         else
+             return ParserResult::runtimeError( "Expected a boolean value but did not recognise: '" + source + "'" );
+         return ParserResult::ok( ParseResultType::Matched );
+     }
+ #ifdef CLARA_CONFIG_OPTIONAL_TYPE
+     template<typename T>
+     inline auto convertInto( std::string const &source, CLARA_CONFIG_OPTIONAL_TYPE<T>& target ) -> ParserResult {
+         T temp;
+         auto result = convertInto( source, temp );
+         if( result )
+             target = std::move(temp);
+         return result;
+     }
+ #endif // CLARA_CONFIG_OPTIONAL_TYPE
+ 
+     struct NonCopyable {
+         NonCopyable() = default;
+         NonCopyable( NonCopyable const & ) = delete;
+         NonCopyable( NonCopyable && ) = delete;
+         NonCopyable &operator=( NonCopyable const & ) = delete;
+         NonCopyable &operator=( NonCopyable && ) = delete;
+     };
+ 
+     struct BoundRef : NonCopyable {
+         virtual ~BoundRef() = default;
+         virtual auto isContainer() const -> bool { return false; }
+         virtual auto isFlag() const -> bool { return false; }
+     };
+     struct BoundValueRefBase : BoundRef {
+         virtual auto setValue( std::string const &arg ) -> ParserResult = 0;
+     };
+     struct BoundFlagRefBase : BoundRef {
+         virtual auto setFlag( bool flag ) -> ParserResult = 0;
+         virtual auto isFlag() const -> bool { return true; }
+     };
+ 
+     template<typename T>
+     struct BoundValueRef : BoundValueRefBase {
+         T &m_ref;
+ 
+         explicit BoundValueRef( T &ref ) : m_ref( ref ) {}
+ 
+         auto setValue( std::string const &arg ) -> ParserResult override {
+             return convertInto( arg, m_ref );
+         }
+     };
+ 
+     template<typename T>
+     struct BoundValueRef<std::vector<T>> : BoundValueRefBase {
+         std::vector<T> &m_ref;
+ 
+         explicit BoundValueRef( std::vector<T> &ref ) : m_ref( ref ) {}
+ 
+         auto isContainer() const -> bool override { return true; }
+ 
+         auto setValue( std::string const &arg ) -> ParserResult override {
+             T temp;
+             auto result = convertInto( arg, temp );
+             if( result )
+                 m_ref.push_back( temp );
+             return result;
+         }
+     };
+ 
+     struct BoundFlagRef : BoundFlagRefBase {
+         bool &m_ref;
+ 
+         explicit BoundFlagRef( bool &ref ) : m_ref( ref ) {}
+ 
+         auto setFlag( bool flag ) -> ParserResult override {
+             m_ref = flag;
+             return ParserResult::ok( ParseResultType::Matched );
+         }
+     };
+ 
+     template<typename ReturnType>
+     struct LambdaInvoker {
+         static_assert( std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult" );
+ 
+         template<typename L, typename ArgType>
+         static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
+             return lambda( arg );
+         }
+     };
+ 
+     template<>
+     struct LambdaInvoker<void> {
+         template<typename L, typename ArgType>
+         static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
+             lambda( arg );
+             return ParserResult::ok( ParseResultType::Matched );
+         }
+     };
+ 
+     template<typename ArgType, typename L>
+     inline auto invokeLambda( L const &lambda, std::string const &arg ) -> ParserResult {
+         ArgType temp{};
+         auto result = convertInto( arg, temp );
+         return !result
+            ? result
+            : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( lambda, temp );
+     }
+ 
+     template<typename L>
+     struct BoundLambda : BoundValueRefBase {
+         L m_lambda;
+ 
+         static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
+         explicit BoundLambda( L const &lambda ) : m_lambda( lambda ) {}
+ 
+         auto setValue( std::string const &arg ) -> ParserResult override {
+             return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>( m_lambda, arg );
+         }
+     };
+ 
+     template<typename L>
+     struct BoundFlagLambda : BoundFlagRefBase {
+         L m_lambda;
+ 
+         static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
+         static_assert( std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean" );
+ 
+         explicit BoundFlagLambda( L const &lambda ) : m_lambda( lambda ) {}
+ 
+         auto setFlag( bool flag ) -> ParserResult override {
+             return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( m_lambda, flag );
+         }
+     };
+ 
+     enum class Optionality { Optional, Required };
+ 
+     struct Parser;
+ 
+     class ParserBase {
+     public:
+         virtual ~ParserBase() = default;
+         virtual auto validate() const -> Result { return Result::ok(); }
+         virtual auto parse( std::string const& exeName, TokenStream const &tokens) const -> InternalParseResult  = 0;
+         virtual auto cardinality() const -> size_t { return 1; }
+ 
+         auto parse( Args const &args ) const -> InternalParseResult {
+             return parse( args.exeName(), TokenStream( args ) );
+         }
+     };
+ 
+     template<typename DerivedT>
+     class ComposableParserImpl : public ParserBase {
+     public:
+         template<typename T>
+         auto operator|( T const &other ) const -> Parser;
+ 
+         template<typename T>
+         auto operator+( T const &other ) const -> Parser;
+     };
+ 
+     // Common code and state for Args and Opts
+     template<typename DerivedT>
+     class ParserRefImpl : public ComposableParserImpl<DerivedT> {
+     protected:
+         Optionality m_optionality = Optionality::Optional;
+         std::shared_ptr<BoundRef> m_ref;
+         std::string m_hint;
+         std::string m_description;
+ 
+         explicit ParserRefImpl( std::shared_ptr<BoundRef> const &ref ) : m_ref( ref ) {}
+ 
+     public:
+         template<typename T>
+         ParserRefImpl( T &ref, std::string const &hint )
+         :   m_ref( std::make_shared<BoundValueRef<T>>( ref ) ),
+             m_hint( hint )
+         {}
+ 
+         template<typename LambdaT>
+         ParserRefImpl( LambdaT const &ref, std::string const &hint )
+         :   m_ref( std::make_shared<BoundLambda<LambdaT>>( ref ) ),
+             m_hint(hint)
+         {}
+ 
+         auto operator()( std::string const &description ) -> DerivedT & {
+             m_description = description;
+             return static_cast<DerivedT &>( *this );
+         }
+ 
+         auto optional() -> DerivedT & {
+             m_optionality = Optionality::Optional;
+             return static_cast<DerivedT &>( *this );
+         };
+ 
+         auto required() -> DerivedT & {
+             m_optionality = Optionality::Required;
+             return static_cast<DerivedT &>( *this );
+         };
+ 
+         auto isOptional() const -> bool {
+             return m_optionality == Optionality::Optional;
+         }
+ 
+         auto cardinality() const -> size_t override {
+             if( m_ref->isContainer() )
+                 return 0;
+             else
+                 return 1;
+         }
+ 
+         auto hint() const -> std::string { return m_hint; }
+     };
+ 
+     class ExeName : public ComposableParserImpl<ExeName> {
+         std::shared_ptr<std::string> m_name;
+         std::shared_ptr<BoundValueRefBase> m_ref;
+ 
+         template<typename LambdaT>
+         static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundValueRefBase> {
+             return std::make_shared<BoundLambda<LambdaT>>( lambda) ;
+         }
+ 
+     public:
+         ExeName() : m_name( std::make_shared<std::string>( "<executable>" ) ) {}
+ 
+         explicit ExeName( std::string &ref ) : ExeName() {
+             m_ref = std::make_shared<BoundValueRef<std::string>>( ref );
+         }
+ 
+         template<typename LambdaT>
+         explicit ExeName( LambdaT const& lambda ) : ExeName() {
+             m_ref = std::make_shared<BoundLambda<LambdaT>>( lambda );
+         }
+ 
+         // The exe name is not parsed out of the normal tokens, but is handled specially
+         auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
+             return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
+         }
+ 
+         auto name() const -> std::string { return *m_name; }
+         auto set( std::string const& newName ) -> ParserResult {
+ 
+             auto lastSlash = newName.find_last_of( "\\/" );
+             auto filename = ( lastSlash == std::string::npos )
+                     ? newName
+                     : newName.substr( lastSlash+1 );
+ 
+             *m_name = filename;
+             if( m_ref )
+                 return m_ref->setValue( filename );
+             else
+                 return ParserResult::ok( ParseResultType::Matched );
+         }
+     };
+ 
+     class Arg : public ParserRefImpl<Arg> {
+     public:
+         using ParserRefImpl::ParserRefImpl;
+ 
+         auto parse( std::string const &, TokenStream const &tokens ) const -> InternalParseResult override {
+             auto validationResult = validate();
+             if( !validationResult )
+                 return InternalParseResult( validationResult );
+ 
+             auto remainingTokens = tokens;
+             auto const &token = *remainingTokens;
+             if( token.type != TokenType::Argument )
+                 return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
+ 
+             assert( !m_ref->isFlag() );
+             auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );
+ 
+             auto result = valueRef->setValue( remainingTokens->token );
+             if( !result )
+                 return InternalParseResult( result );
+             else
+                 return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
+         }
+     };
+ 
+     inline auto normaliseOpt( std::string const &optName ) -> std::string {
+ #ifdef CATCH_PLATFORM_WINDOWS
+         if( optName[0] == '/' )
+             return "-" + optName.substr( 1 );
+         else
+ #endif
+             return optName;
+     }
+ 
+     class Opt : public ParserRefImpl<Opt> {
+     protected:
+         std::vector<std::string> m_optNames;
+ 
+     public:
+         template<typename LambdaT>
+         explicit Opt( LambdaT const &ref ) : ParserRefImpl( std::make_shared<BoundFlagLambda<LambdaT>>( ref ) ) {}
+ 
+         explicit Opt( bool &ref ) : ParserRefImpl( std::make_shared<BoundFlagRef>( ref ) ) {}
+ 
+         template<typename LambdaT>
+         Opt( LambdaT const &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
+ 
+         template<typename T>
+         Opt( T &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
+ 
+         auto operator[]( std::string const &optName ) -> Opt & {
+             m_optNames.push_back( optName );
+             return *this;
+         }
+ 
+         auto getHelpColumns() const -> std::vector<HelpColumns> {
+             std::ostringstream oss;
+             bool first = true;
+             for( auto const &opt : m_optNames ) {
+                 if (first)
+                     first = false;
+                 else
+                     oss << ", ";
+                 oss << opt;
+             }
+             if( !m_hint.empty() )
+                 oss << " <" << m_hint << ">";
+             return { { oss.str(), m_description } };
+         }
+ 
+         auto isMatch( std::string const &optToken ) const -> bool {
+             auto normalisedToken = normaliseOpt( optToken );
+             for( auto const &name : m_optNames ) {
+                 if( normaliseOpt( name ) == normalisedToken )
+                     return true;
+             }
+             return false;
+         }
+ 
+         using ParserBase::parse;
+ 
+         auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
+             auto validationResult = validate();
+             if( !validationResult )
+                 return InternalParseResult( validationResult );
+ 
+             auto remainingTokens = tokens;
+             if( remainingTokens && remainingTokens->type == TokenType::Option ) {
+                 auto const &token = *remainingTokens;
+                 if( isMatch(token.token ) ) {
+                     if( m_ref->isFlag() ) {
+                         auto flagRef = static_cast<detail::BoundFlagRefBase*>( m_ref.get() );
+                         auto result = flagRef->setFlag( true );
+                         if( !result )
+                             return InternalParseResult( result );
+                         if( result.value() == ParseResultType::ShortCircuitAll )
+                             return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
+                     } else {
+                         auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );
+                         ++remainingTokens;
+                         if( !remainingTokens )
+                             return InternalParseResult::runtimeError( "Expected argument following " + token.token );
+                         auto const &argToken = *remainingTokens;
+                         if( argToken.type != TokenType::Argument )
+                             return InternalParseResult::runtimeError( "Expected argument following " + token.token );
+                         auto result = valueRef->setValue( argToken.token );
+                         if( !result )
+                             return InternalParseResult( result );
+                         if( result.value() == ParseResultType::ShortCircuitAll )
+                             return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
+                     }
+                     return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
+                 }
+             }
+             return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
+         }
+ 
+         auto validate() const -> Result override {
+             if( m_optNames.empty() )
+                 return Result::logicError( "No options supplied to Opt" );
+             for( auto const &name : m_optNames ) {
+                 if( name.empty() )
+                     return Result::logicError( "Option name cannot be empty" );
+ #ifdef CATCH_PLATFORM_WINDOWS
+                 if( name[0] != '-' && name[0] != '/' )
+                     return Result::logicError( "Option name must begin with '-' or '/'" );
+ #else
+                 if( name[0] != '-' )
+                     return Result::logicError( "Option name must begin with '-'" );
+ #endif
+             }
+             return ParserRefImpl::validate();
+         }
+     };
+ 
+     struct Help : Opt {
+         Help( bool &showHelpFlag )
+         :   Opt([&]( bool flag ) {
+                 showHelpFlag = flag;
+                 return ParserResult::ok( ParseResultType::ShortCircuitAll );
+             })
+         {
+             static_cast<Opt &>( *this )
+                     ("display usage information")
+                     ["-?"]["-h"]["--help"]
+                     .optional();
+         }
+     };
+ 
+     struct Parser : ParserBase {
+ 
+         mutable ExeName m_exeName;
+         std::vector<Opt> m_options;
+         std::vector<Arg> m_args;
+ 
+         auto operator|=( ExeName const &exeName ) -> Parser & {
+             m_exeName = exeName;
+             return *this;
+         }
+ 
+         auto operator|=( Arg const &arg ) -> Parser & {
+             m_args.push_back(arg);
+             return *this;
+         }
+ 
+         auto operator|=( Opt const &opt ) -> Parser & {
+             m_options.push_back(opt);
+             return *this;
+         }
+ 
+         auto operator|=( Parser const &other ) -> Parser & {
+             m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
+             m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
+             return *this;
+         }
+ 
+         template<typename T>
+         auto operator|( T const &other ) const -> Parser {
+             return Parser( *this ) |= other;
+         }
+ 
+         // Forward deprecated interface with '+' instead of '|'
+         template<typename T>
+         auto operator+=( T const &other ) -> Parser & { return operator|=( other ); }
+         template<typename T>
+         auto operator+( T const &other ) const -> Parser { return operator|( other ); }
+ 
+         auto getHelpColumns() const -> std::vector<HelpColumns> {
+             std::vector<HelpColumns> cols;
+             for (auto const &o : m_options) {
+                 auto childCols = o.getHelpColumns();
+                 cols.insert( cols.end(), childCols.begin(), childCols.end() );
+             }
+             return cols;
+         }
+ 
+         void writeToStream( std::ostream &os ) const {
+             if (!m_exeName.name().empty()) {
+                 os << "usage:\n" << "  " << m_exeName.name() << " ";
+                 bool required = true, first = true;
+                 for( auto const &arg : m_args ) {
+                     if (first)
+                         first = false;
+                     else
+                         os << " ";
+                     if( arg.isOptional() && required ) {
+                         os << "[";
+                         required = false;
+                     }
+                     os << "<" << arg.hint() << ">";
+                     if( arg.cardinality() == 0 )
+                         os << " ... ";
+                 }
+                 if( !required )
+                     os << "]";
+                 if( !m_options.empty() )
+                     os << " options";
+                 os << "\n\nwhere options are:" << std::endl;
+             }
+ 
+             auto rows = getHelpColumns();
+             size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
+             size_t optWidth = 0;
+             for( auto const &cols : rows )
+                 optWidth = (std::max)(optWidth, cols.left.size() + 2);
+ 
+             optWidth = (std::min)(optWidth, consoleWidth/2);
+ 
+             for( auto const &cols : rows ) {
+                 auto row =
+                         TextFlow::Column( cols.left ).width( optWidth ).indent( 2 ) +
+                         TextFlow::Spacer(4) +
+                         TextFlow::Column( cols.right ).width( consoleWidth - 7 - optWidth );
+                 os << row << std::endl;
+             }
+         }
+ 
+         friend auto operator<<( std::ostream &os, Parser const &parser ) -> std::ostream& {
+             parser.writeToStream( os );
+             return os;
+         }
+ 
+         auto validate() const -> Result override {
+             for( auto const &opt : m_options ) {
+                 auto result = opt.validate();
+                 if( !result )
+                     return result;
+             }
+             for( auto const &arg : m_args ) {
+                 auto result = arg.validate();
+                 if( !result )
+                     return result;
+             }
+             return Result::ok();
+         }
+ 
+         using ParserBase::parse;
+ 
+         auto parse( std::string const& exeName, TokenStream const &tokens ) const -> InternalParseResult override {
+ 
+             struct ParserInfo {
+                 ParserBase const* parser = nullptr;
+                 size_t count = 0;
+             };
+             const size_t totalParsers = m_options.size() + m_args.size();
+             assert( totalParsers < 512 );
+             // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
+             ParserInfo parseInfos[512];
+ 
+             {
+                 size_t i = 0;
+                 for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
+                 for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
+             }
+ 
+             m_exeName.set( exeName );
+ 
+             auto result = InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
+             while( result.value().remainingTokens() ) {
+                 bool tokenParsed = false;
+ 
+                 for( size_t i = 0; i < totalParsers; ++i ) {
+                     auto&  parseInfo = parseInfos[i];
+                     if( parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality() ) {
+                         result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
+                         if (!result)
+                             return result;
+                         if (result.value().type() != ParseResultType::NoMatch) {
+                             tokenParsed = true;
+                             ++parseInfo.count;
+                             break;
+                         }
+                     }
+                 }
+ 
+                 if( result.value().type() == ParseResultType::ShortCircuitAll )
+                     return result;
+                 if( !tokenParsed )
+                     return InternalParseResult::runtimeError( "Unrecognised token: " + result.value().remainingTokens()->token );
+             }
+             // !TBD Check missing required options
+             return result;
+         }
+     };
+ 
+     template<typename DerivedT>
+     template<typename T>
+     auto ComposableParserImpl<DerivedT>::operator|( T const &other ) const -> Parser {
+         return Parser() | static_cast<DerivedT const &>( *this ) | other;
+     }
+ } // namespace detail
+ 
+ // A Combined parser
+ using detail::Parser;
+ 
+ // A parser for options
+ using detail::Opt;
+ 
+ // A parser for arguments
+ using detail::Arg;
+ 
+ // Wrapper for argc, argv from main()
+ using detail::Args;
+ 
+ // Specifies the name of the executable
+ using detail::ExeName;
+ 
+ // Convenience wrapper for option parser that specifies the help option
+ using detail::Help;
+ 
+ // enum of result types from a parse
+ using detail::ParseResultType;
+ 
+ // Result type for parser operation
+ using detail::ParserResult;
+ 
+ }} // namespace Catch::clara
+ 
+ // end clara.hpp
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+ 
+ // Restore Clara's value for console width, if present
+ #ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+ #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+ #undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+ #endif
+ 
+ // end catch_clara.h
+ namespace Catch {
+ 
+     clara::Parser makeCommandLineParser( ConfigData& config );
+ 
+ } // end namespace Catch
+ 
+ // end catch_commandline.h
+ #include <fstream>
+ #include <ctime>
+ 
+ namespace Catch {
+ 
+     clara::Parser makeCommandLineParser( ConfigData& config ) {
+ 
+         using namespace clara;
+ 
+         auto const setWarning = [&]( std::string const& warning ) {
+                 auto warningSet = [&]() {
+                     if( warning == "NoAssertions" )
+                         return WarnAbout::NoAssertions;
+ 
+                     if ( warning == "NoTests" )
+                         return WarnAbout::NoTests;
+ 
+                     return WarnAbout::Nothing;
+                 }();
+ 
+                 if (warningSet == WarnAbout::Nothing)
+                     return ParserResult::runtimeError( "Unrecognised warning: '" + warning + "'" );
+                 config.warnings = static_cast<WarnAbout::What>( config.warnings | warningSet );
+                 return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const loadTestNamesFromFile = [&]( std::string const& filename ) {
+                 std::ifstream f( filename.c_str() );
+                 if( !f.is_open() )
+                     return ParserResult::runtimeError( "Unable to load input file: '" + filename + "'" );
+ 
+                 std::string line;
+                 while( std::getline( f, line ) ) {
+                     line = trim(line);
+                     if( !line.empty() && !startsWith( line, '#' ) ) {
+                         if( !startsWith( line, '"' ) )
+                             line = '"' + line + '"';
+                         config.testsOrTags.push_back( line );
+                         config.testsOrTags.emplace_back( "," );
+                     }
+                 }
+                 //Remove comma in the end
+                 if(!config.testsOrTags.empty())
+                     config.testsOrTags.erase( config.testsOrTags.end()-1 );
+ 
+                 return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const setTestOrder = [&]( std::string const& order ) {
+                 if( startsWith( "declared", order ) )
+                     config.runOrder = RunTests::InDeclarationOrder;
+                 else if( startsWith( "lexical", order ) )
+                     config.runOrder = RunTests::InLexicographicalOrder;
+                 else if( startsWith( "random", order ) )
+                     config.runOrder = RunTests::InRandomOrder;
+                 else
+                     return clara::ParserResult::runtimeError( "Unrecognised ordering: '" + order + "'" );
+                 return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const setRngSeed = [&]( std::string const& seed ) {
+                 if( seed != "time" )
+                     return clara::detail::convertInto( seed, config.rngSeed );
+                 config.rngSeed = static_cast<unsigned int>( std::time(nullptr) );
+                 return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const setColourUsage = [&]( std::string const& useColour ) {
+                     auto mode = toLower( useColour );
+ 
+                     if( mode == "yes" )
+                         config.useColour = UseColour::Yes;
+                     else if( mode == "no" )
+                         config.useColour = UseColour::No;
+                     else if( mode == "auto" )
+                         config.useColour = UseColour::Auto;
+                     else
+                         return ParserResult::runtimeError( "colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised" );
+                 return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const setWaitForKeypress = [&]( std::string const& keypress ) {
+                 auto keypressLc = toLower( keypress );
+                 if (keypressLc == "never")
+                     config.waitForKeypress = WaitForKeypress::Never;
+                 else if( keypressLc == "start" )
+                     config.waitForKeypress = WaitForKeypress::BeforeStart;
+                 else if( keypressLc == "exit" )
+                     config.waitForKeypress = WaitForKeypress::BeforeExit;
+                 else if( keypressLc == "both" )
+                     config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
+                 else
+                     return ParserResult::runtimeError( "keypress argument must be one of: never, start, exit or both. '" + keypress + "' not recognised" );
+             return ParserResult::ok( ParseResultType::Matched );
+             };
+         auto const setVerbosity = [&]( std::string const& verbosity ) {
+             auto lcVerbosity = toLower( verbosity );
+             if( lcVerbosity == "quiet" )
+                 config.verbosity = Verbosity::Quiet;
+             else if( lcVerbosity == "normal" )
+                 config.verbosity = Verbosity::Normal;
+             else if( lcVerbosity == "high" )
+                 config.verbosity = Verbosity::High;
+             else
+                 return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + "'" );
+             return ParserResult::ok( ParseResultType::Matched );
+         };
+         auto const setReporter = [&]( std::string const& reporter ) {
+             IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
+ 
+             auto lcReporter = toLower( reporter );
+             auto result = factories.find( lcReporter );
+ 
+             if( factories.end() != result )
+                 config.reporterName = lcReporter;
+             else
+                 return ParserResult::runtimeError( "Unrecognized reporter, '" + reporter + "'. Check available with --list-reporters" );
+             return ParserResult::ok( ParseResultType::Matched );
+         };
+ 
+         auto cli
+             = ExeName( config.processName )
+             | Help( config.showHelp )
+             | Opt( config.listTests )
+                 ["-l"]["--list-tests"]
+                 ( "list all/matching test cases" )
+             | Opt( config.listTags )
+                 ["-t"]["--list-tags"]
+                 ( "list all/matching tags" )
+             | Opt( config.showSuccessfulTests )
+                 ["-s"]["--success"]
+                 ( "include successful tests in output" )
+             | Opt( config.shouldDebugBreak )
+                 ["-b"]["--break"]
+                 ( "break into debugger on failure" )
+             | Opt( config.noThrow )
+                 ["-e"]["--nothrow"]
+                 ( "skip exception tests" )
+             | Opt( config.showInvisibles )
+                 ["-i"]["--invisibles"]
+                 ( "show invisibles (tabs, newlines)" )
+             | Opt( config.outputFilename, "filename" )
+                 ["-o"]["--out"]
+                 ( "output filename" )
+             | Opt( setReporter, "name" )
+                 ["-r"]["--reporter"]
+                 ( "reporter to use (defaults to console)" )
+             | Opt( config.name, "name" )
+                 ["-n"]["--name"]
+                 ( "suite name" )
+             | Opt( [&]( bool ){ config.abortAfter = 1; } )
+                 ["-a"]["--abort"]
+                 ( "abort at first failure" )
+             | Opt( [&]( int x ){ config.abortAfter = x; }, "no. failures" )
+                 ["-x"]["--abortx"]
+                 ( "abort after x failures" )
+             | Opt( setWarning, "warning name" )
+                 ["-w"]["--warn"]
+                 ( "enable warnings" )
+             | Opt( [&]( bool flag ) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no" )
+                 ["-d"]["--durations"]
+                 ( "show test durations" )
+             | Opt( config.minDuration, "seconds" )
+                 ["-D"]["--min-duration"]
+                 ( "show test durations for tests taking at least the given number of seconds" )
+             | Opt( loadTestNamesFromFile, "filename" )
+                 ["-f"]["--input-file"]
+                 ( "load test names to run from a file" )
+             | Opt( config.filenamesAsTags )
+                 ["-#"]["--filenames-as-tags"]
+                 ( "adds a tag for the filename" )
+             | Opt( config.sectionsToRun, "section name" )
+                 ["-c"]["--section"]
+                 ( "specify section to run" )
+             | Opt( setVerbosity, "quiet|normal|high" )
+                 ["-v"]["--verbosity"]
+                 ( "set output verbosity" )
+             | Opt( config.listTestNamesOnly )
+                 ["--list-test-names-only"]
+                 ( "list all/matching test cases names only" )
+             | Opt( config.listReporters )
+                 ["--list-reporters"]
+                 ( "list all reporters" )
+             | Opt( setTestOrder, "decl|lex|rand" )
+                 ["--order"]
+                 ( "test case order (defaults to decl)" )
+             | Opt( setRngSeed, "'time'|number" )
+                 ["--rng-seed"]
+                 ( "set a specific seed for random numbers" )
+             | Opt( setColourUsage, "yes|no" )
+                 ["--use-colour"]
+                 ( "should output be colourised" )
+             | Opt( config.libIdentify )
+                 ["--libidentify"]
+                 ( "report name and version according to libidentify standard" )
+             | Opt( setWaitForKeypress, "never|start|exit|both" )
+                 ["--wait-for-keypress"]
+                 ( "waits for a keypress before exiting" )
+             | Opt( config.benchmarkSamples, "samples" )
+                 ["--benchmark-samples"]
+                 ( "number of samples to collect (default: 100)" )
+             | Opt( config.benchmarkResamples, "resamples" )
+                 ["--benchmark-resamples"]
+                 ( "number of resamples for the bootstrap (default: 100000)" )
+             | Opt( config.benchmarkConfidenceInterval, "confidence interval" )
+                 ["--benchmark-confidence-interval"]
+                 ( "confidence interval for the bootstrap (between 0 and 1, default: 0.95)" )
+             | Opt( config.benchmarkNoAnalysis )
+                 ["--benchmark-no-analysis"]
+                 ( "perform only measurements; do not perform any analysis" )
+             | Opt( config.benchmarkWarmupTime, "benchmarkWarmupTime" )
+                 ["--benchmark-warmup-time"]
+                 ( "amount of time in milliseconds spent on warming up each test (default: 100)" )
+             | Arg( config.testsOrTags, "test name|pattern|tags" )
+                 ( "which test or tests to use" );
+ 
+         return cli;
+     }
+ 
+ } // end namespace Catch
+ // end catch_commandline.cpp
+ // start catch_common.cpp
+ 
+ #include <cstring>
+ #include <ostream>
+ 
+ namespace Catch {
+ 
+     bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
+         return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
+     }
+     bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
+         // We can assume that the same file will usually have the same pointer.
+         // Thus, if the pointers are the same, there is no point in calling the strcmp
+         return line < other.line || ( line == other.line && file != other.file && (std::strcmp(file, other.file) < 0));
+     }
+ 
+     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
+ #ifndef __GNUG__
+         os << info.file << '(' << info.line << ')';
+ #else
+         os << info.file << ':' << info.line;
+ #endif
+         return os;
+     }
+ 
+     std::string StreamEndStop::operator+() const {
+         return std::string();
+     }
+ 
+     NonCopyable::NonCopyable() = default;
+     NonCopyable::~NonCopyable() = default;
+ 
+ }
+ // end catch_common.cpp
+ // start catch_config.cpp
+ 
+ namespace Catch {
+ 
+     Config::Config( ConfigData const& data )
+     :   m_data( data ),
+         m_stream( openStream() )
+     {
+         // We need to trim filter specs to avoid trouble with superfluous
+         // whitespace (esp. important for bdd macros, as those are manually
+         // aligned with whitespace).
+ 
+         for (auto& elem : m_data.testsOrTags) {
+             elem = trim(elem);
+         }
+         for (auto& elem : m_data.sectionsToRun) {
+             elem = trim(elem);
+         }
+ 
+         TestSpecParser parser(ITagAliasRegistry::get());
+         if (!m_data.testsOrTags.empty()) {
+             m_hasTestFilters = true;
+             for (auto const& testOrTags : m_data.testsOrTags) {
+                 parser.parse(testOrTags);
+             }
+         }
+         m_testSpec = parser.testSpec();
+     }
+ 
+     std::string const& Config::getFilename() const {
+         return m_data.outputFilename ;
+     }
+ 
+     bool Config::listTests() const          { return m_data.listTests; }
+     bool Config::listTestNamesOnly() const  { return m_data.listTestNamesOnly; }
+     bool Config::listTags() const           { return m_data.listTags; }
+     bool Config::listReporters() const      { return m_data.listReporters; }
+ 
+     std::string Config::getProcessName() const { return m_data.processName; }
+     std::string const& Config::getReporterName() const { return m_data.reporterName; }
+ 
+     std::vector<std::string> const& Config::getTestsOrTags() const { return m_data.testsOrTags; }
+     std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }
+ 
+     TestSpec const& Config::testSpec() const { return m_testSpec; }
+     bool Config::hasTestFilters() const { return m_hasTestFilters; }
+ 
+     bool Config::showHelp() const { return m_data.showHelp; }
+ 
+     // IConfig interface
+     bool Config::allowThrows() const                   { return !m_data.noThrow; }
+     std::ostream& Config::stream() const               { return m_stream->stream(); }
+     std::string Config::name() const                   { return m_data.name.empty() ? m_data.processName : m_data.name; }
+     bool Config::includeSuccessfulResults() const      { return m_data.showSuccessfulTests; }
+     bool Config::warnAboutMissingAssertions() const    { return !!(m_data.warnings & WarnAbout::NoAssertions); }
+     bool Config::warnAboutNoTests() const              { return !!(m_data.warnings & WarnAbout::NoTests); }
+     ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
+     double Config::minDuration() const                 { return m_data.minDuration; }
+     RunTests::InWhatOrder Config::runOrder() const     { return m_data.runOrder; }
+     unsigned int Config::rngSeed() const               { return m_data.rngSeed; }
+     UseColour::YesOrNo Config::useColour() const       { return m_data.useColour; }
+     bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
+     int Config::abortAfter() const                     { return m_data.abortAfter; }
+     bool Config::showInvisibles() const                { return m_data.showInvisibles; }
+     Verbosity Config::verbosity() const                { return m_data.verbosity; }
+ 
+     bool Config::benchmarkNoAnalysis() const                      { return m_data.benchmarkNoAnalysis; }
+     int Config::benchmarkSamples() const                          { return m_data.benchmarkSamples; }
+     double Config::benchmarkConfidenceInterval() const            { return m_data.benchmarkConfidenceInterval; }
+     unsigned int Config::benchmarkResamples() const               { return m_data.benchmarkResamples; }
+     std::chrono::milliseconds Config::benchmarkWarmupTime() const { return std::chrono::milliseconds(m_data.benchmarkWarmupTime); }
+ 
+     IStream const* Config::openStream() {
+         return Catch::makeStream(m_data.outputFilename);
+     }
+ 
+ } // end namespace Catch
+ // end catch_config.cpp
+ // start catch_console_colour.cpp
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic push
+ #    pragma clang diagnostic ignored "-Wexit-time-destructors"
+ #endif
+ 
+ // start catch_errno_guard.h
+ 
+ namespace Catch {
+ 
+     class ErrnoGuard {
+     public:
+         ErrnoGuard();
+         ~ErrnoGuard();
+     private:
+         int m_oldErrno;
+     };
+ 
+ }
+ 
+ // end catch_errno_guard.h
+ // start catch_windows_h_proxy.h
+ 
+ 
+ #if defined(CATCH_PLATFORM_WINDOWS)
+ 
+ #if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
+ #  define CATCH_DEFINED_NOMINMAX
+ #  define NOMINMAX
+ #endif
+ #if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
+ #  define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
+ #  define WIN32_LEAN_AND_MEAN
+ #endif
+ 
+ #ifdef __AFXDLL
+ #include <AfxWin.h>
+ #else
+ #include <windows.h>
+ #endif
+ 
+ #ifdef CATCH_DEFINED_NOMINMAX
+ #  undef NOMINMAX
+ #endif
+ #ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
+ #  undef WIN32_LEAN_AND_MEAN
+ #endif
+ 
+ #endif // defined(CATCH_PLATFORM_WINDOWS)
+ 
+ // end catch_windows_h_proxy.h
+ #include <sstream>
+ 
+ namespace Catch {
+     namespace {
+ 
+         struct IColourImpl {
+             virtual ~IColourImpl() = default;
+             virtual void use( Colour::Code _colourCode ) = 0;
+         };
+ 
+         struct NoColourImpl : IColourImpl {
+             void use( Colour::Code ) override {}
+ 
+             static IColourImpl* instance() {
+                 static NoColourImpl s_instance;
+                 return &s_instance;
+             }
+         };
+ 
+     } // anon namespace
+ } // namespace Catch
+ 
+ #if !defined( CATCH_CONFIG_COLOUR_NONE ) && !defined( CATCH_CONFIG_COLOUR_WINDOWS ) && !defined( CATCH_CONFIG_COLOUR_ANSI )
+ #   ifdef CATCH_PLATFORM_WINDOWS
+ #       define CATCH_CONFIG_COLOUR_WINDOWS
+ #   else
+ #       define CATCH_CONFIG_COLOUR_ANSI
+ #   endif
+ #endif
+ 
+ #if defined ( CATCH_CONFIG_COLOUR_WINDOWS ) /////////////////////////////////////////
+ 
+ namespace Catch {
+ namespace {
+ 
+     class Win32ColourImpl : public IColourImpl {
+     public:
+         Win32ColourImpl() : stdoutHandle( GetStdHandle(STD_OUTPUT_HANDLE) )
+         {
+             CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
+             GetConsoleScreenBufferInfo( stdoutHandle, &csbiInfo );
+             originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
+             originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
+         }
+ 
+         void use( Colour::Code _colourCode ) override {
+             switch( _colourCode ) {
+                 case Colour::None:      return setTextAttribute( originalForegroundAttributes );
+                 case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
+                 case Colour::Red:       return setTextAttribute( FOREGROUND_RED );
+                 case Colour::Green:     return setTextAttribute( FOREGROUND_GREEN );
+                 case Colour::Blue:      return setTextAttribute( FOREGROUND_BLUE );
+                 case Colour::Cyan:      return setTextAttribute( FOREGROUND_BLUE | FOREGROUND_GREEN );
+                 case Colour::Yellow:    return setTextAttribute( FOREGROUND_RED | FOREGROUND_GREEN );
+                 case Colour::Grey:      return setTextAttribute( 0 );
+ 
+                 case Colour::LightGrey:     return setTextAttribute( FOREGROUND_INTENSITY );
+                 case Colour::BrightRed:     return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED );
+                 case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
+                 case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
+                 case Colour::BrightYellow:  return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN );
+ 
+                 case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
+ 
+                 default:
+                     CATCH_ERROR( "Unknown colour requested" );
+             }
+         }
+ 
+     private:
+         void setTextAttribute( WORD _textAttribute ) {
+             SetConsoleTextAttribute( stdoutHandle, _textAttribute | originalBackgroundAttributes );
+         }
+         HANDLE stdoutHandle;
+         WORD originalForegroundAttributes;
+         WORD originalBackgroundAttributes;
+     };
+ 
+     IColourImpl* platformColourInstance() {
+         static Win32ColourImpl s_instance;
+ 
+         IConfigPtr config = getCurrentContext().getConfig();
+         UseColour::YesOrNo colourMode = config
+             ? config->useColour()
+             : UseColour::Auto;
+         if( colourMode == UseColour::Auto )
+             colourMode = UseColour::Yes;
+         return colourMode == UseColour::Yes
+             ? &s_instance
+             : NoColourImpl::instance();
+     }
+ 
+ } // end anon namespace
+ } // end namespace Catch
+ 
+ #elif defined( CATCH_CONFIG_COLOUR_ANSI ) //////////////////////////////////////
+ 
+ #include <unistd.h>
+ 
+ namespace Catch {
+ namespace {
+ 
+     // use POSIX/ ANSI console terminal codes
+     // Thanks to Adam Strzelecki for original contribution
+     // (http://github.com/nanoant)
+     // https://github.com/philsquared/Catch/pull/131
+     class PosixColourImpl : public IColourImpl {
+     public:
+         void use( Colour::Code _colourCode ) override {
+             switch( _colourCode ) {
+                 case Colour::None:
+                 case Colour::White:     return setColour( "[0m" );
+                 case Colour::Red:       return setColour( "[0;31m" );
+                 case Colour::Green:     return setColour( "[0;32m" );
+                 case Colour::Blue:      return setColour( "[0;34m" );
+                 case Colour::Cyan:      return setColour( "[0;36m" );
+                 case Colour::Yellow:    return setColour( "[0;33m" );
+                 case Colour::Grey:      return setColour( "[1;30m" );
+ 
+                 case Colour::LightGrey:     return setColour( "[0;37m" );
+                 case Colour::BrightRed:     return setColour( "[1;31m" );
+                 case Colour::BrightGreen:   return setColour( "[1;32m" );
+                 case Colour::BrightWhite:   return setColour( "[1;37m" );
+                 case Colour::BrightYellow:  return setColour( "[1;33m" );
+ 
+                 case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
+                 default: CATCH_INTERNAL_ERROR( "Unknown colour requested" );
+             }
+         }
+         static IColourImpl* instance() {
+             static PosixColourImpl s_instance;
+             return &s_instance;
+         }
+ 
+     private:
+         void setColour( const char* _escapeCode ) {
+             getCurrentContext().getConfig()->stream()
+                 << '\033' << _escapeCode;
+         }
+     };
+ 
+     bool useColourOnPlatform() {
+         return
+ #if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
+             !isDebuggerActive() &&
+ #endif
+ #if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
+             isatty(STDOUT_FILENO)
+ #else
+             false
+ #endif
+             ;
+     }
+     IColourImpl* platformColourInstance() {
+         ErrnoGuard guard;
+         IConfigPtr config = getCurrentContext().getConfig();
+         UseColour::YesOrNo colourMode = config
+             ? config->useColour()
+             : UseColour::Auto;
+         if( colourMode == UseColour::Auto )
+             colourMode = useColourOnPlatform()
+                 ? UseColour::Yes
+                 : UseColour::No;
+         return colourMode == UseColour::Yes
+             ? PosixColourImpl::instance()
+             : NoColourImpl::instance();
+     }
+ 
+ } // end anon namespace
+ } // end namespace Catch
+ 
+ #else  // not Windows or ANSI ///////////////////////////////////////////////
+ 
+ namespace Catch {
+ 
+     static IColourImpl* platformColourInstance() { return NoColourImpl::instance(); }
+ 
+ } // end namespace Catch
+ 
+ #endif // Windows/ ANSI/ None
+ 
+ namespace Catch {
+ 
+     Colour::Colour( Code _colourCode ) { use( _colourCode ); }
+     Colour::Colour( Colour&& other ) noexcept {
+         m_moved = other.m_moved;
+         other.m_moved = true;
+     }
+     Colour& Colour::operator=( Colour&& other ) noexcept {
+         m_moved = other.m_moved;
+         other.m_moved  = true;
+         return *this;
+     }
+ 
+     Colour::~Colour(){ if( !m_moved ) use( None ); }
+ 
+     void Colour::use( Code _colourCode ) {
+         static IColourImpl* impl = platformColourInstance();
+         // Strictly speaking, this cannot possibly happen.
+         // However, under some conditions it does happen (see #1626),
+         // and this change is small enough that we can let practicality
+         // triumph over purity in this case.
+         if (impl != nullptr) {
+             impl->use( _colourCode );
+         }
+     }
+ 
+     std::ostream& operator << ( std::ostream& os, Colour const& ) {
+         return os;
+     }
+ 
+ } // end namespace Catch
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_console_colour.cpp
+ // start catch_context.cpp
+ 
+ namespace Catch {
+ 
+     class Context : public IMutableContext, NonCopyable {
+ 
+     public: // IContext
+         IResultCapture* getResultCapture() override {
+             return m_resultCapture;
+         }
+         IRunner* getRunner() override {
+             return m_runner;
+         }
+ 
+         IConfigPtr const& getConfig() const override {
+             return m_config;
+         }
+ 
+         ~Context() override;
+ 
+     public: // IMutableContext
+         void setResultCapture( IResultCapture* resultCapture ) override {
+             m_resultCapture = resultCapture;
+         }
+         void setRunner( IRunner* runner ) override {
+             m_runner = runner;
+         }
+         void setConfig( IConfigPtr const& config ) override {
+             m_config = config;
+         }
+ 
+         friend IMutableContext& getCurrentMutableContext();
+ 
+     private:
+         IConfigPtr m_config;
+         IRunner* m_runner = nullptr;
+         IResultCapture* m_resultCapture = nullptr;
+     };
+ 
+     IMutableContext *IMutableContext::currentContext = nullptr;
+ 
+     void IMutableContext::createContext()
+     {
+         currentContext = new Context();
+     }
+ 
+     void cleanUpContext() {
+         delete IMutableContext::currentContext;
+         IMutableContext::currentContext = nullptr;
+     }
+     IContext::~IContext() = default;
+     IMutableContext::~IMutableContext() = default;
+     Context::~Context() = default;
+ 
+     SimplePcg32& rng() {
+         static SimplePcg32 s_rng;
+         return s_rng;
+     }
+ 
+ }
+ // end catch_context.cpp
+ // start catch_debug_console.cpp
+ 
+ // start catch_debug_console.h
+ 
+ #include <string>
+ 
+ namespace Catch {
+     void writeToDebugConsole( std::string const& text );
+ }
+ 
+ // end catch_debug_console.h
+ #if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
+ #include <android/log.h>
+ 
+     namespace Catch {
+         void writeToDebugConsole( std::string const& text ) {
+             __android_log_write( ANDROID_LOG_DEBUG, "Catch", text.c_str() );
+         }
+     }
+ 
+ #elif defined(CATCH_PLATFORM_WINDOWS)
+ 
+     namespace Catch {
+         void writeToDebugConsole( std::string const& text ) {
+             ::OutputDebugStringA( text.c_str() );
+         }
+     }
+ 
+ #else
+ 
+     namespace Catch {
+         void writeToDebugConsole( std::string const& text ) {
+             // !TBD: Need a version for Mac/ XCode and other IDEs
+             Catch::cout() << text;
+         }
+     }
+ 
+ #endif // Platform
+ // end catch_debug_console.cpp
+ // start catch_debugger.cpp
+ 
+ #if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
+ 
+ #  include <cassert>
+ #  include <sys/types.h>
+ #  include <unistd.h>
+ #  include <cstddef>
+ #  include <ostream>
+ 
+ #ifdef __apple_build_version__
+     // These headers will only compile with AppleClang (XCode)
+     // For other compilers (Clang, GCC, ... ) we need to exclude them
+ #  include <sys/sysctl.h>
+ #endif
+ 
+     namespace Catch {
+         #ifdef __apple_build_version__
+         // The following function is taken directly from the following technical note:
+         // https://developer.apple.com/library/archive/qa/qa1361/_index.html
+ 
+         // Returns true if the current process is being debugged (either
+         // running under the debugger or has a debugger attached post facto).
+         bool isDebuggerActive(){
+             int                 mib[4];
+             struct kinfo_proc   info;
+             std::size_t         size;
+ 
+             // Initialize the flags so that, if sysctl fails for some bizarre
+             // reason, we get a predictable result.
+ 
+             info.kp_proc.p_flag = 0;
+ 
+             // Initialize mib, which tells sysctl the info we want, in this case
+             // we're looking for information about a specific process ID.
+ 
+             mib[0] = CTL_KERN;
+             mib[1] = KERN_PROC;
+             mib[2] = KERN_PROC_PID;
+             mib[3] = getpid();
+ 
+             // Call sysctl.
+ 
+             size = sizeof(info);
+             if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
+                 Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
+                 return false;
+             }
+ 
+             // We're being debugged if the P_TRACED flag is set.
+ 
+             return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
+         }
+         #else
+         bool isDebuggerActive() {
+             // We need to find another way to determine this for non-appleclang compilers on macOS
+             return false;
+         }
+         #endif
+     } // namespace Catch
+ 
+ #elif defined(CATCH_PLATFORM_LINUX)
+     #include <fstream>
+     #include <string>
+ 
+     namespace Catch{
+         // The standard POSIX way of detecting a debugger is to attempt to
+         // ptrace() the process, but this needs to be done from a child and not
+         // this process itself to still allow attaching to this process later
+         // if wanted, so is rather heavy. Under Linux we have the PID of the
+         // "debugger" (which doesn't need to be gdb, of course, it could also
+         // be strace, for example) in /proc/$PID/status, so just get it from
+         // there instead.
+         bool isDebuggerActive(){
+             // Libstdc++ has a bug, where std::ifstream sets errno to 0
+             // This way our users can properly assert over errno values
+             ErrnoGuard guard;
+             std::ifstream in("/proc/self/status");
+             for( std::string line; std::getline(in, line); ) {
+                 static const int PREFIX_LEN = 11;
+                 if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
+                     // We're traced if the PID is not 0 and no other PID starts
+                     // with 0 digit, so it's enough to check for just a single
+                     // character.
+                     return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
+                 }
+             }
+ 
+             return false;
+         }
+     } // namespace Catch
+ #elif defined(_MSC_VER)
+     extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
+     namespace Catch {
+         bool isDebuggerActive() {
+             return IsDebuggerPresent() != 0;
+         }
+     }
+ #elif defined(__MINGW32__)
+     extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
+     namespace Catch {
+         bool isDebuggerActive() {
+             return IsDebuggerPresent() != 0;
+         }
+     }
+ #else
+     namespace Catch {
+        bool isDebuggerActive() { return false; }
+     }
+ #endif // Platform
+ // end catch_debugger.cpp
+ // start catch_decomposer.cpp
+ 
+ namespace Catch {
+ 
+     ITransientExpression::~ITransientExpression() = default;
+ 
+     void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs ) {
+         if( lhs.size() + rhs.size() < 40 &&
+                 lhs.find('\n') == std::string::npos &&
+                 rhs.find('\n') == std::string::npos )
+             os << lhs << " " << op << " " << rhs;
+         else
+             os << lhs << "\n" << op << "\n" << rhs;
+     }
+ }
+ // end catch_decomposer.cpp
+ // start catch_enforce.cpp
+ 
+ #include <stdexcept>
+ 
+ namespace Catch {
+ #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
+     [[noreturn]]
+     void throw_exception(std::exception const& e) {
+         Catch::cerr() << "Catch will terminate because it needed to throw an exception.\n"
+                       << "The message was: " << e.what() << '\n';
+         std::terminate();
+     }
+ #endif
+ 
+     [[noreturn]]
+     void throw_logic_error(std::string const& msg) {
+         throw_exception(std::logic_error(msg));
+     }
+ 
+     [[noreturn]]
+     void throw_domain_error(std::string const& msg) {
+         throw_exception(std::domain_error(msg));
+     }
+ 
+     [[noreturn]]
+     void throw_runtime_error(std::string const& msg) {
+         throw_exception(std::runtime_error(msg));
+     }
+ 
+ } // namespace Catch;
+ // end catch_enforce.cpp
+ // start catch_enum_values_registry.cpp
+ // start catch_enum_values_registry.h
+ 
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     namespace Detail {
+ 
+         std::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values );
+ 
+         class EnumValuesRegistry : public IMutableEnumValuesRegistry {
+ 
+             std::vector<std::unique_ptr<EnumInfo>> m_enumInfos;
+ 
+             EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values) override;
+         };
+ 
+         std::vector<StringRef> parseEnums( StringRef enums );
+ 
+     } // Detail
+ 
+ } // Catch
+ 
+ // end catch_enum_values_registry.h
+ 
+ #include <map>
+ #include <cassert>
+ 
+ namespace Catch {
+ 
+     IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() {}
+ 
+     namespace Detail {
+ 
+         namespace {
+             // Extracts the actual name part of an enum instance
+             // In other words, it returns the Blue part of Bikeshed::Colour::Blue
+             StringRef extractInstanceName(StringRef enumInstance) {
+                 // Find last occurrence of ":"
+                 size_t name_start = enumInstance.size();
+                 while (name_start > 0 && enumInstance[name_start - 1] != ':') {
+                     --name_start;
+                 }
+                 return enumInstance.substr(name_start, enumInstance.size() - name_start);
+             }
+         }
+ 
+         std::vector<StringRef> parseEnums( StringRef enums ) {
+             auto enumValues = splitStringRef( enums, ',' );
+             std::vector<StringRef> parsed;
+             parsed.reserve( enumValues.size() );
+             for( auto const& enumValue : enumValues ) {
+                 parsed.push_back(trim(extractInstanceName(enumValue)));
+             }
+             return parsed;
+         }
+ 
+         EnumInfo::~EnumInfo() {}
+ 
+         StringRef EnumInfo::lookup( int value ) const {
+             for( auto const& valueToName : m_values ) {
+                 if( valueToName.first == value )
+                     return valueToName.second;
+             }
+             return "{** unexpected enum value **}"_sr;
+         }
+ 
+         std::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
+             std::unique_ptr<EnumInfo> enumInfo( new EnumInfo );
+             enumInfo->m_name = enumName;
+             enumInfo->m_values.reserve( values.size() );
+ 
+             const auto valueNames = Catch::Detail::parseEnums( allValueNames );
+             assert( valueNames.size() == values.size() );
+             std::size_t i = 0;
+             for( auto value : values )
+                 enumInfo->m_values.emplace_back(value, valueNames[i++]);
+ 
+             return enumInfo;
+         }
+ 
+         EnumInfo const& EnumValuesRegistry::registerEnum( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
+             m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
+             return *m_enumInfos.back();
+         }
+ 
+     } // Detail
+ } // Catch
+ 
+ // end catch_enum_values_registry.cpp
+ // start catch_errno_guard.cpp
+ 
+ #include <cerrno>
+ 
+ namespace Catch {
+         ErrnoGuard::ErrnoGuard():m_oldErrno(errno){}
+         ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
+ }
+ // end catch_errno_guard.cpp
+ // start catch_exception_translator_registry.cpp
+ 
+ // start catch_exception_translator_registry.h
+ 
+ #include <vector>
+ #include <string>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
+     public:
+         ~ExceptionTranslatorRegistry();
+         virtual void registerTranslator( const IExceptionTranslator* translator );
+         std::string translateActiveException() const override;
+         std::string tryTranslators() const;
+ 
+     private:
+         std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
+     };
+ }
+ 
+ // end catch_exception_translator_registry.h
+ #ifdef __OBJC__
+ #import "Foundation/Foundation.h"
+ #endif
+ 
+ namespace Catch {
+ 
+     ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
+     }
+ 
+     void ExceptionTranslatorRegistry::registerTranslator( const IExceptionTranslator* translator ) {
+         m_translators.push_back( std::unique_ptr<const IExceptionTranslator>( translator ) );
+     }
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+     std::string ExceptionTranslatorRegistry::translateActiveException() const {
+         try {
+ #ifdef __OBJC__
+             // In Objective-C try objective-c exceptions first
+             @try {
+                 return tryTranslators();
+             }
+             @catch (NSException *exception) {
+                 return Catch::Detail::stringify( [exception description] );
+             }
+ #else
+             // Compiling a mixed mode project with MSVC means that CLR
+             // exceptions will be caught in (...) as well. However, these
+             // do not fill-in std::current_exception and thus lead to crash
+             // when attempting rethrow.
+             // /EHa switch also causes structured exceptions to be caught
+             // here, but they fill-in current_exception properly, so
+             // at worst the output should be a little weird, instead of
+             // causing a crash.
+             if (std::current_exception() == nullptr) {
+                 return "Non C++ exception. Possibly a CLR exception.";
+             }
+             return tryTranslators();
+ #endif
+         }
+         catch( TestFailureException& ) {
+             std::rethrow_exception(std::current_exception());
+         }
+         catch( std::exception& ex ) {
+             return ex.what();
+         }
+         catch( std::string& msg ) {
+             return msg;
+         }
+         catch( const char* msg ) {
+             return msg;
+         }
+         catch(...) {
+             return "Unknown exception";
+         }
+     }
+ 
+     std::string ExceptionTranslatorRegistry::tryTranslators() const {
+         if (m_translators.empty()) {
+             std::rethrow_exception(std::current_exception());
+         } else {
+             return m_translators[0]->translate(m_translators.begin() + 1, m_translators.end());
+         }
+     }
+ 
+ #else // ^^ Exceptions are enabled // Exceptions are disabled vv
+     std::string ExceptionTranslatorRegistry::translateActiveException() const {
+         CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
+     }
+ 
+     std::string ExceptionTranslatorRegistry::tryTranslators() const {
+         CATCH_INTERNAL_ERROR("Attempted to use exception translators under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
+     }
+ #endif
+ 
+ }
+ // end catch_exception_translator_registry.cpp
+ // start catch_fatal_condition.cpp
+ 
+ #include <algorithm>
+ 
+ #if !defined( CATCH_CONFIG_WINDOWS_SEH ) && !defined( CATCH_CONFIG_POSIX_SIGNALS )
+ 
+ namespace Catch {
+ 
+     // If neither SEH nor signal handling is required, the handler impls
+     // do not have to do anything, and can be empty.
+     void FatalConditionHandler::engage_platform() {}
+     void FatalConditionHandler::disengage_platform() {}
+     FatalConditionHandler::FatalConditionHandler() = default;
+     FatalConditionHandler::~FatalConditionHandler() = default;
+ 
+ } // end namespace Catch
+ 
+ #endif // !CATCH_CONFIG_WINDOWS_SEH && !CATCH_CONFIG_POSIX_SIGNALS
+ 
+ #if defined( CATCH_CONFIG_WINDOWS_SEH ) && defined( CATCH_CONFIG_POSIX_SIGNALS )
+ #error "Inconsistent configuration: Windows' SEH handling and POSIX signals cannot be enabled at the same time"
+ #endif // CATCH_CONFIG_WINDOWS_SEH && CATCH_CONFIG_POSIX_SIGNALS
+ 
+ #if defined( CATCH_CONFIG_WINDOWS_SEH ) || defined( CATCH_CONFIG_POSIX_SIGNALS )
+ 
+ namespace {
+     //! Signals fatal error message to the run context
+     void reportFatal( char const * const message ) {
+         Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition( message );
+     }
+ 
+     //! Minimal size Catch2 needs for its own fatal error handling.
+     //! Picked anecdotally, so it might not be sufficient on all
+     //! platforms, and for all configurations.
+     constexpr std::size_t minStackSizeForErrors = 32 * 1024;
+ } // end unnamed namespace
+ 
+ #endif // CATCH_CONFIG_WINDOWS_SEH || CATCH_CONFIG_POSIX_SIGNALS
+ 
+ #if defined( CATCH_CONFIG_WINDOWS_SEH )
+ 
+ namespace Catch {
+ 
+     struct SignalDefs { DWORD id; const char* name; };
+ 
+     // There is no 1-1 mapping between signals and windows exceptions.
+     // Windows can easily distinguish between SO and SigSegV,
+     // but SigInt, SigTerm, etc are handled differently.
+     static SignalDefs signalDefs[] = {
+         { static_cast<DWORD>(EXCEPTION_ILLEGAL_INSTRUCTION),  "SIGILL - Illegal instruction signal" },
+         { static_cast<DWORD>(EXCEPTION_STACK_OVERFLOW), "SIGSEGV - Stack overflow" },
+         { static_cast<DWORD>(EXCEPTION_ACCESS_VIOLATION), "SIGSEGV - Segmentation violation signal" },
+         { static_cast<DWORD>(EXCEPTION_INT_DIVIDE_BY_ZERO), "Divide by zero error" },
+     };
+ 
+     static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
+         for (auto const& def : signalDefs) {
+             if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
+                 reportFatal(def.name);
+             }
+         }
+         // If its not an exception we care about, pass it along.
+         // This stops us from eating debugger breaks etc.
+         return EXCEPTION_CONTINUE_SEARCH;
+     }
+ 
+     // Since we do not support multiple instantiations, we put these
+     // into global variables and rely on cleaning them up in outlined
+     // constructors/destructors
+     static PVOID exceptionHandlerHandle = nullptr;
+ 
+     // For MSVC, we reserve part of the stack memory for handling
+     // memory overflow structured exception.
+     FatalConditionHandler::FatalConditionHandler() {
+         ULONG guaranteeSize = static_cast<ULONG>(minStackSizeForErrors);
+         if (!SetThreadStackGuarantee(&guaranteeSize)) {
+             // We do not want to fully error out, because needing
+             // the stack reserve should be rare enough anyway.
+             Catch::cerr()
+                 << "Failed to reserve piece of stack."
+                 << " Stack overflows will not be reported successfully.";
+         }
+     }
+ 
+     // We do not attempt to unset the stack guarantee, because
+     // Windows does not support lowering the stack size guarantee.
+     FatalConditionHandler::~FatalConditionHandler() = default;
+ 
+     void FatalConditionHandler::engage_platform() {
+         // Register as first handler in current chain
+         exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
+         if (!exceptionHandlerHandle) {
+             CATCH_RUNTIME_ERROR("Could not register vectored exception handler");
+         }
+     }
+ 
+     void FatalConditionHandler::disengage_platform() {
+         if (!RemoveVectoredExceptionHandler(exceptionHandlerHandle)) {
+             CATCH_RUNTIME_ERROR("Could not unregister vectored exception handler");
+         }
+         exceptionHandlerHandle = nullptr;
+     }
+ 
+ } // end namespace Catch
+ 
+ #endif // CATCH_CONFIG_WINDOWS_SEH
+ 
+ #if defined( CATCH_CONFIG_POSIX_SIGNALS )
+ 
+ #include <signal.h>
+ 
+ namespace Catch {
+ 
+     struct SignalDefs {
+         int id;
+         const char* name;
+     };
+ 
+     static SignalDefs signalDefs[] = {
+         { SIGINT,  "SIGINT - Terminal interrupt signal" },
+         { SIGILL,  "SIGILL - Illegal instruction signal" },
+         { SIGFPE,  "SIGFPE - Floating point error signal" },
+         { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
+         { SIGTERM, "SIGTERM - Termination request signal" },
+         { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
+     };
+ 
+ // Older GCCs trigger -Wmissing-field-initializers for T foo = {}
+ // which is zero initialization, but not explicit. We want to avoid
+ // that.
+ #if defined(__GNUC__)
+ #    pragma GCC diagnostic push
+ #    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+ #endif
+ 
+     static char* altStackMem = nullptr;
+     static std::size_t altStackSize = 0;
+     static stack_t oldSigStack{};
+     static struct sigaction oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)]{};
+ 
+     static void restorePreviousSignalHandlers() {
+         // We set signal handlers back to the previous ones. Hopefully
+         // nobody overwrote them in the meantime, and doesn't expect
+         // their signal handlers to live past ours given that they
+         // installed them after ours..
+         for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
+             sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
+         }
+         // Return the old stack
+         sigaltstack(&oldSigStack, nullptr);
+     }
+ 
+     static void handleSignal( int sig ) {
+         char const * name = "<unknown signal>";
+         for (auto const& def : signalDefs) {
+             if (sig == def.id) {
+                 name = def.name;
+                 break;
+             }
+         }
+         // We need to restore previous signal handlers and let them do
+         // their thing, so that the users can have the debugger break
+         // when a signal is raised, and so on.
+         restorePreviousSignalHandlers();
+         reportFatal( name );
+         raise( sig );
+     }
+ 
+     FatalConditionHandler::FatalConditionHandler() {
+         assert(!altStackMem && "Cannot initialize POSIX signal handler when one already exists");
+         if (altStackSize == 0) {
+             altStackSize = std::max(static_cast<size_t>(SIGSTKSZ), minStackSizeForErrors);
+         }
+         altStackMem = new char[altStackSize]();
+     }
+ 
+     FatalConditionHandler::~FatalConditionHandler() {
+         delete[] altStackMem;
+         // We signal that another instance can be constructed by zeroing
+         // out the pointer.
+         altStackMem = nullptr;
+     }
+ 
+     void FatalConditionHandler::engage_platform() {
+         stack_t sigStack;
+         sigStack.ss_sp = altStackMem;
+         sigStack.ss_size = altStackSize;
+         sigStack.ss_flags = 0;
+         sigaltstack(&sigStack, &oldSigStack);
+         struct sigaction sa = { };
+ 
+         sa.sa_handler = handleSignal;
+         sa.sa_flags = SA_ONSTACK;
+         for (std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i) {
+             sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
+         }
+     }
+ 
+ #if defined(__GNUC__)
+ #    pragma GCC diagnostic pop
+ #endif
+ 
+     void FatalConditionHandler::disengage_platform() {
+         restorePreviousSignalHandlers();
+     }
+ 
+ } // end namespace Catch
+ 
+ #endif // CATCH_CONFIG_POSIX_SIGNALS
+ // end catch_fatal_condition.cpp
+ // start catch_generators.cpp
+ 
+ #include <limits>
+ #include <set>
+ 
+ namespace Catch {
+ 
+ IGeneratorTracker::~IGeneratorTracker() {}
+ 
+ const char* GeneratorException::what() const noexcept {
+     return m_msg;
+ }
+ 
+ namespace Generators {
+ 
+     GeneratorUntypedBase::~GeneratorUntypedBase() {}
+ 
+     auto acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
+         return getResultCapture().acquireGeneratorTracker( generatorName, lineInfo );
+     }
+ 
+ } // namespace Generators
+ } // namespace Catch
+ // end catch_generators.cpp
+ // start catch_interfaces_capture.cpp
+ 
+ namespace Catch {
+     IResultCapture::~IResultCapture() = default;
+ }
+ // end catch_interfaces_capture.cpp
+ // start catch_interfaces_config.cpp
+ 
+ namespace Catch {
+     IConfig::~IConfig() = default;
+ }
+ // end catch_interfaces_config.cpp
+ // start catch_interfaces_exception.cpp
+ 
+ namespace Catch {
+     IExceptionTranslator::~IExceptionTranslator() = default;
+     IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
+ }
+ // end catch_interfaces_exception.cpp
+ // start catch_interfaces_registry_hub.cpp
+ 
+ namespace Catch {
+     IRegistryHub::~IRegistryHub() = default;
+     IMutableRegistryHub::~IMutableRegistryHub() = default;
+ }
+ // end catch_interfaces_registry_hub.cpp
+ // start catch_interfaces_reporter.cpp
+ 
+ // start catch_reporter_listening.h
+ 
+ namespace Catch {
+ 
+     class ListeningReporter : public IStreamingReporter {
+         using Reporters = std::vector<IStreamingReporterPtr>;
+         Reporters m_listeners;
+         IStreamingReporterPtr m_reporter = nullptr;
+         ReporterPreferences m_preferences;
+ 
+     public:
+         ListeningReporter();
+ 
+         void addListener( IStreamingReporterPtr&& listener );
+         void addReporter( IStreamingReporterPtr&& reporter );
+ 
+     public: // IStreamingReporter
+ 
+         ReporterPreferences getPreferences() const override;
+ 
+         void noMatchingTestCases( std::string const& spec ) override;
+ 
+         void reportInvalidArguments(std::string const&arg) override;
+ 
+         static std::set<Verbosity> getSupportedVerbosities();
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+         void benchmarkPreparing(std::string const& name) override;
+         void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
+         void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) override;
+         void benchmarkFailed(std::string const&) override;
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+         void testRunStarting( TestRunInfo const& testRunInfo ) override;
+         void testGroupStarting( GroupInfo const& groupInfo ) override;
+         void testCaseStarting( TestCaseInfo const& testInfo ) override;
+         void sectionStarting( SectionInfo const& sectionInfo ) override;
+         void assertionStarting( AssertionInfo const& assertionInfo ) override;
+ 
+         // The return value indicates if the messages buffer should be cleared:
+         bool assertionEnded( AssertionStats const& assertionStats ) override;
+         void sectionEnded( SectionStats const& sectionStats ) override;
+         void testCaseEnded( TestCaseStats const& testCaseStats ) override;
+         void testGroupEnded( TestGroupStats const& testGroupStats ) override;
+         void testRunEnded( TestRunStats const& testRunStats ) override;
+ 
+         void skipTest( TestCaseInfo const& testInfo ) override;
+         bool isMulti() const override;
+ 
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_reporter_listening.h
+ namespace Catch {
+ 
+     ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig )
+     :   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}
+ 
+     ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream )
+     :   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}
+ 
+     std::ostream& ReporterConfig::stream() const { return *m_stream; }
+     IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }
+ 
+     TestRunInfo::TestRunInfo( std::string const& _name ) : name( _name ) {}
+ 
+     GroupInfo::GroupInfo(  std::string const& _name,
+                            std::size_t _groupIndex,
+                            std::size_t _groupsCount )
+     :   name( _name ),
+         groupIndex( _groupIndex ),
+         groupsCounts( _groupsCount )
+     {}
+ 
+      AssertionStats::AssertionStats( AssertionResult const& _assertionResult,
+                                      std::vector<MessageInfo> const& _infoMessages,
+                                      Totals const& _totals )
+     :   assertionResult( _assertionResult ),
+         infoMessages( _infoMessages ),
+         totals( _totals )
+     {
+         assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;
+ 
+         if( assertionResult.hasMessage() ) {
+             // Copy message into messages list.
+             // !TBD This should have been done earlier, somewhere
+             MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
+             builder << assertionResult.getMessage();
+             builder.m_info.message = builder.m_stream.str();
+ 
+             infoMessages.push_back( builder.m_info );
+         }
+     }
+ 
+      AssertionStats::~AssertionStats() = default;
+ 
+     SectionStats::SectionStats(  SectionInfo const& _sectionInfo,
+                                  Counts const& _assertions,
+                                  double _durationInSeconds,
+                                  bool _missingAssertions )
+     :   sectionInfo( _sectionInfo ),
+         assertions( _assertions ),
+         durationInSeconds( _durationInSeconds ),
+         missingAssertions( _missingAssertions )
+     {}
+ 
+     SectionStats::~SectionStats() = default;
+ 
+     TestCaseStats::TestCaseStats(  TestCaseInfo const& _testInfo,
                                     Totals const& _totals,
+                                    std::string const& _stdOut,
+                                    std::string const& _stdErr,
                                     bool _aborting )
-    :   groupInfo( _groupInfo ),
-        totals( _totals ),
-        aborting( _aborting )
-    {}
-
-    TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo )
-    :   groupInfo( _groupInfo ),
-        aborting( false )
-    {}
-
-    TestGroupStats::~TestGroupStats() = default;
-
-    TestRunStats::TestRunStats(   TestRunInfo const& _runInfo,
-                    Totals const& _totals,
-                    bool _aborting )
-    :   runInfo( _runInfo ),
-        totals( _totals ),
-        aborting( _aborting )
-    {}
-
-    TestRunStats::~TestRunStats() = default;
-
-    void IStreamingReporter::fatalErrorEncountered( StringRef ) {}
-    bool IStreamingReporter::isMulti() const { return false; }
-
-    IReporterFactory::~IReporterFactory() = default;
-    IReporterRegistry::~IReporterRegistry() = default;
-
-} // end namespace Catch
-// end catch_interfaces_reporter.cpp
-// start catch_interfaces_runner.cpp
-
-namespace Catch {
-    IRunner::~IRunner() = default;
-}
-// end catch_interfaces_runner.cpp
-// start catch_interfaces_testcase.cpp
-
-namespace Catch {
-    ITestInvoker::~ITestInvoker() = default;
-    ITestCaseRegistry::~ITestCaseRegistry() = default;
-}
-// end catch_interfaces_testcase.cpp
-// start catch_leak_detector.cpp
-
-#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
-#include <crtdbg.h>
-
-namespace Catch {
-
-	LeakDetector::LeakDetector() {
-		int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
-		flag |= _CRTDBG_LEAK_CHECK_DF;
-		flag |= _CRTDBG_ALLOC_MEM_DF;
-		_CrtSetDbgFlag(flag);
-		_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
-		_CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
-		// Change this to leaking allocation's number to break there
-		_CrtSetBreakAlloc(-1);
-	}
-}
-
-#else
-
-    Catch::LeakDetector::LeakDetector() {}
-
-#endif
-// end catch_leak_detector.cpp
-// start catch_list.cpp
-
-// start catch_list.h
-
-#include <set>
-
-namespace Catch {
-
-    std::size_t listTests( Config const& config );
-
-    std::size_t listTestsNamesOnly( Config const& config );
-
-    struct TagInfo {
-        void add( std::string const& spelling );
-        std::string all() const;
-
-        std::set<std::string> spellings;
-        std::size_t count = 0;
-    };
-
-    std::size_t listTags( Config const& config );
-
-    std::size_t listReporters( Config const& /*config*/ );
-
-    Option<std::size_t> list( Config const& config );
-
-} // end namespace Catch
-
-// end catch_list.h
-// start catch_text.h
-
-namespace Catch {
-    using namespace clara::TextFlow;
-}
-
-// end catch_text.h
-#include <limits>
-#include <algorithm>
-#include <iomanip>
-
-namespace Catch {
-
-    std::size_t listTests( Config const& config ) {
-        TestSpec testSpec = config.testSpec();
-        if( config.hasTestFilters() )
-            Catch::cout() << "Matching test cases:\n";
-        else {
-            Catch::cout() << "All available test cases:\n";
-        }
-
-        auto matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( auto const& testCaseInfo : matchedTestCases ) {
-            Colour::Code colour = testCaseInfo.isHidden()
-                ? Colour::SecondaryText
-                : Colour::None;
-            Colour colourGuard( colour );
-
-            Catch::cout() << Column( testCaseInfo.name ).initialIndent( 2 ).indent( 4 ) << "\n";
-            if( config.verbosity() >= Verbosity::High ) {
-                Catch::cout() << Column( Catch::Detail::stringify( testCaseInfo.lineInfo ) ).indent(4) << std::endl;
-                std::string description = testCaseInfo.description;
-                if( description.empty() )
-                    description = "(NO DESCRIPTION)";
-                Catch::cout() << Column( description ).indent(4) << std::endl;
+     : testInfo( _testInfo ),
+         totals( _totals ),
+         stdOut( _stdOut ),
+         stdErr( _stdErr ),
+         aborting( _aborting )
+     {}
+ 
+     TestCaseStats::~TestCaseStats() = default;
+ 
+     TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo,
+                                     Totals const& _totals,
+                                     bool _aborting )
+     :   groupInfo( _groupInfo ),
+         totals( _totals ),
+         aborting( _aborting )
+     {}
+ 
+     TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo )
+     :   groupInfo( _groupInfo ),
+         aborting( false )
+     {}
+ 
+     TestGroupStats::~TestGroupStats() = default;
+ 
+     TestRunStats::TestRunStats(   TestRunInfo const& _runInfo,
+                     Totals const& _totals,
+                     bool _aborting )
+     :   runInfo( _runInfo ),
+         totals( _totals ),
+         aborting( _aborting )
+     {}
+ 
+     TestRunStats::~TestRunStats() = default;
+ 
+     void IStreamingReporter::fatalErrorEncountered( StringRef ) {}
+     bool IStreamingReporter::isMulti() const { return false; }
+ 
+     IReporterFactory::~IReporterFactory() = default;
+     IReporterRegistry::~IReporterRegistry() = default;
+ 
+ } // end namespace Catch
+ // end catch_interfaces_reporter.cpp
+ // start catch_interfaces_runner.cpp
+ 
+ namespace Catch {
+     IRunner::~IRunner() = default;
+ }
+ // end catch_interfaces_runner.cpp
+ // start catch_interfaces_testcase.cpp
+ 
+ namespace Catch {
+     ITestInvoker::~ITestInvoker() = default;
+     ITestCaseRegistry::~ITestCaseRegistry() = default;
+ }
+ // end catch_interfaces_testcase.cpp
+ // start catch_leak_detector.cpp
+ 
+ #ifdef CATCH_CONFIG_WINDOWS_CRTDBG
+ #include <crtdbg.h>
+ 
+ namespace Catch {
+ 
+     LeakDetector::LeakDetector() {
+         int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
+         flag |= _CRTDBG_LEAK_CHECK_DF;
+         flag |= _CRTDBG_ALLOC_MEM_DF;
+         _CrtSetDbgFlag(flag);
+         _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
+         _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
+         // Change this to leaking allocation's number to break there
+         _CrtSetBreakAlloc(-1);
+     }
+ }
+ 
+ #else
+ 
+     Catch::LeakDetector::LeakDetector() {}
+ 
+ #endif
+ 
+ Catch::LeakDetector::~LeakDetector() {
+     Catch::cleanUp();
+ }
+ // end catch_leak_detector.cpp
+ // start catch_list.cpp
+ 
+ // start catch_list.h
+ 
+ #include <set>
+ 
+ namespace Catch {
+ 
+     std::size_t listTests( Config const& config );
+ 
+     std::size_t listTestsNamesOnly( Config const& config );
+ 
+     struct TagInfo {
+         void add( std::string const& spelling );
+         std::string all() const;
+ 
+         std::set<std::string> spellings;
+         std::size_t count = 0;
+     };
+ 
+     std::size_t listTags( Config const& config );
+ 
+     std::size_t listReporters();
+ 
+     Option<std::size_t> list( std::shared_ptr<Config> const& config );
+ 
+ } // end namespace Catch
+ 
+ // end catch_list.h
+ // start catch_text.h
+ 
+ namespace Catch {
+     using namespace clara::TextFlow;
+ }
+ 
+ // end catch_text.h
+ #include <limits>
+ #include <algorithm>
+ #include <iomanip>
+ 
+ namespace Catch {
+ 
+     std::size_t listTests( Config const& config ) {
+         TestSpec const& testSpec = config.testSpec();
+         if( config.hasTestFilters() )
+             Catch::cout() << "Matching test cases:\n";
+         else {
+             Catch::cout() << "All available test cases:\n";
+         }
+ 
+         auto matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+         for( auto const& testCaseInfo : matchedTestCases ) {
+             Colour::Code colour = testCaseInfo.isHidden()
+                 ? Colour::SecondaryText
+                 : Colour::None;
+             Colour colourGuard( colour );
+ 
+             Catch::cout() << Column( testCaseInfo.name ).initialIndent( 2 ).indent( 4 ) << "\n";
+             if( config.verbosity() >= Verbosity::High ) {
+                 Catch::cout() << Column( Catch::Detail::stringify( testCaseInfo.lineInfo ) ).indent(4) << std::endl;
+                 std::string description = testCaseInfo.description;
+                 if( description.empty() )
+                     description = "(NO DESCRIPTION)";
+                 Catch::cout() << Column( description ).indent(4) << std::endl;
+             }
+             if( !testCaseInfo.tags.empty() )
+                 Catch::cout() << Column( testCaseInfo.tagsAsString() ).indent( 6 ) << "\n";
+         }
+ 
+         if( !config.hasTestFilters() )
+             Catch::cout() << pluralise( matchedTestCases.size(), "test case" ) << '\n' << std::endl;
+         else
+             Catch::cout() << pluralise( matchedTestCases.size(), "matching test case" ) << '\n' << std::endl;
+         return matchedTestCases.size();
+     }
+ 
+     std::size_t listTestsNamesOnly( Config const& config ) {
+         TestSpec const& testSpec = config.testSpec();
+         std::size_t matchedTests = 0;
+         std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+         for( auto const& testCaseInfo : matchedTestCases ) {
+             matchedTests++;
+             if( startsWith( testCaseInfo.name, '#' ) )
+                Catch::cout() << '"' << testCaseInfo.name << '"';
+             else
+                Catch::cout() << testCaseInfo.name;
+             if ( config.verbosity() >= Verbosity::High )
+                 Catch::cout() << "\t@" << testCaseInfo.lineInfo;
+             Catch::cout() << std::endl;
+         }
+         return matchedTests;
+     }
+ 
+     void TagInfo::add( std::string const& spelling ) {
+         ++count;
+         spellings.insert( spelling );
+     }
+ 
+     std::string TagInfo::all() const {
+         size_t size = 0;
+         for (auto const& spelling : spellings) {
+             // Add 2 for the brackes
+             size += spelling.size() + 2;
+         }
+ 
+         std::string out; out.reserve(size);
+         for (auto const& spelling : spellings) {
+             out += '[';
+             out += spelling;
+             out += ']';
+         }
+         return out;
+     }
+ 
+     std::size_t listTags( Config const& config ) {
+         TestSpec const& testSpec = config.testSpec();
+         if( config.hasTestFilters() )
+             Catch::cout() << "Tags for matching test cases:\n";
+         else {
+             Catch::cout() << "All available tags:\n";
+         }
+ 
+         std::map<std::string, TagInfo> tagCounts;
+ 
+         std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+         for( auto const& testCase : matchedTestCases ) {
+             for( auto const& tagName : testCase.getTestCaseInfo().tags ) {
+                 std::string lcaseTagName = toLower( tagName );
+                 auto countIt = tagCounts.find( lcaseTagName );
+                 if( countIt == tagCounts.end() )
+                     countIt = tagCounts.insert( std::make_pair( lcaseTagName, TagInfo() ) ).first;
+                 countIt->second.add( tagName );
+             }
+         }
+ 
+         for( auto const& tagCount : tagCounts ) {
+             ReusableStringStream rss;
+             rss << "  " << std::setw(2) << tagCount.second.count << "  ";
+             auto str = rss.str();
+             auto wrapper = Column( tagCount.second.all() )
+                                                     .initialIndent( 0 )
+                                                     .indent( str.size() )
+                                                     .width( CATCH_CONFIG_CONSOLE_WIDTH-10 );
+             Catch::cout() << str << wrapper << '\n';
+         }
+         Catch::cout() << pluralise( tagCounts.size(), "tag" ) << '\n' << std::endl;
+         return tagCounts.size();
+     }
+ 
+     std::size_t listReporters() {
+         Catch::cout() << "Available reporters:\n";
+         IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
+         std::size_t maxNameLen = 0;
+         for( auto const& factoryKvp : factories )
+             maxNameLen = (std::max)( maxNameLen, factoryKvp.first.size() );
+ 
+         for( auto const& factoryKvp : factories ) {
+             Catch::cout()
+                     << Column( factoryKvp.first + ":" )
+                             .indent(2)
+                             .width( 5+maxNameLen )
+                     +  Column( factoryKvp.second->getDescription() )
+                             .initialIndent(0)
+                             .indent(2)
+                             .width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen-8 )
+                     << "\n";
+         }
+         Catch::cout() << std::endl;
+         return factories.size();
+     }
+ 
+     Option<std::size_t> list( std::shared_ptr<Config> const& config ) {
+         Option<std::size_t> listedCount;
+         getCurrentMutableContext().setConfig( config );
+         if( config->listTests() )
+             listedCount = listedCount.valueOr(0) + listTests( *config );
+         if( config->listTestNamesOnly() )
+             listedCount = listedCount.valueOr(0) + listTestsNamesOnly( *config );
+         if( config->listTags() )
+             listedCount = listedCount.valueOr(0) + listTags( *config );
+         if( config->listReporters() )
+             listedCount = listedCount.valueOr(0) + listReporters();
+         return listedCount;
+     }
+ 
+ } // end namespace Catch
+ // end catch_list.cpp
+ // start catch_matchers.cpp
+ 
+ namespace Catch {
+ namespace Matchers {
+     namespace Impl {
+ 
+         std::string MatcherUntypedBase::toString() const {
+             if( m_cachedToString.empty() )
+                 m_cachedToString = describe();
+             return m_cachedToString;
+         }
+ 
+         MatcherUntypedBase::~MatcherUntypedBase() = default;
+ 
+     } // namespace Impl
+ } // namespace Matchers
+ 
+ using namespace Matchers;
+ using Matchers::Impl::MatcherBase;
+ 
+ } // namespace Catch
+ // end catch_matchers.cpp
+ // start catch_matchers_exception.cpp
+ 
+ namespace Catch {
+ namespace Matchers {
+ namespace Exception {
+ 
+ bool ExceptionMessageMatcher::match(std::exception const& ex) const {
+     return ex.what() == m_message;
+ }
+ 
+ std::string ExceptionMessageMatcher::describe() const {
+     return "exception message matches \"" + m_message + "\"";
+ }
+ 
+ }
+ Exception::ExceptionMessageMatcher Message(std::string const& message) {
+     return Exception::ExceptionMessageMatcher(message);
+ }
+ 
+ // namespace Exception
+ } // namespace Matchers
+ } // namespace Catch
+ // end catch_matchers_exception.cpp
+ // start catch_matchers_floating.cpp
+ 
+ // start catch_polyfills.hpp
+ 
+ namespace Catch {
+     bool isnan(float f);
+     bool isnan(double d);
+ }
+ 
+ // end catch_polyfills.hpp
+ // start catch_to_string.hpp
+ 
+ #include <string>
+ 
+ namespace Catch {
+     template <typename T>
+     std::string to_string(T const& t) {
+ #if defined(CATCH_CONFIG_CPP11_TO_STRING)
+         return std::to_string(t);
+ #else
+         ReusableStringStream rss;
+         rss << t;
+         return rss.str();
+ #endif
+     }
+ } // end namespace Catch
+ 
+ // end catch_to_string.hpp
+ #include <algorithm>
+ #include <cmath>
+ #include <cstdlib>
+ #include <cstdint>
+ #include <cstring>
+ #include <sstream>
+ #include <type_traits>
+ #include <iomanip>
+ #include <limits>
+ 
+ namespace Catch {
+ namespace {
+ 
+     int32_t convert(float f) {
+         static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
+         int32_t i;
+         std::memcpy(&i, &f, sizeof(f));
+         return i;
+     }
+ 
+     int64_t convert(double d) {
+         static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
+         int64_t i;
+         std::memcpy(&i, &d, sizeof(d));
+         return i;
+     }
+ 
+     template <typename FP>
+     bool almostEqualUlps(FP lhs, FP rhs, uint64_t maxUlpDiff) {
+         // Comparison with NaN should always be false.
+         // This way we can rule it out before getting into the ugly details
+         if (Catch::isnan(lhs) || Catch::isnan(rhs)) {
+             return false;
+         }
+ 
+         auto lc = convert(lhs);
+         auto rc = convert(rhs);
+ 
+         if ((lc < 0) != (rc < 0)) {
+             // Potentially we can have +0 and -0
+             return lhs == rhs;
+         }
+ 
+         // static cast as a workaround for IBM XLC
+         auto ulpDiff = std::abs(static_cast<FP>(lc - rc));
+         return static_cast<uint64_t>(ulpDiff) <= maxUlpDiff;
+     }
+ 
+ #if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+ 
+     float nextafter(float x, float y) {
+         return ::nextafterf(x, y);
+     }
+ 
+     double nextafter(double x, double y) {
+         return ::nextafter(x, y);
+     }
+ 
+ #endif // ^^^ CATCH_CONFIG_GLOBAL_NEXTAFTER ^^^
+ 
+ template <typename FP>
+ FP step(FP start, FP direction, uint64_t steps) {
+     for (uint64_t i = 0; i < steps; ++i) {
+ #if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+         start = Catch::nextafter(start, direction);
+ #else
+         start = std::nextafter(start, direction);
+ #endif
+     }
+     return start;
+ }
+ 
+ // Performs equivalent check of std::fabs(lhs - rhs) <= margin
+ // But without the subtraction to allow for INFINITY in comparison
+ bool marginComparison(double lhs, double rhs, double margin) {
+     return (lhs + margin >= rhs) && (rhs + margin >= lhs);
+ }
+ 
+ template <typename FloatingPoint>
+ void write(std::ostream& out, FloatingPoint num) {
+     out << std::scientific
+         << std::setprecision(std::numeric_limits<FloatingPoint>::max_digits10 - 1)
+         << num;
+ }
+ 
+ } // end anonymous namespace
+ 
+ namespace Matchers {
+ namespace Floating {
+ 
+     enum class FloatingPointKind : uint8_t {
+         Float,
+         Double
+     };
+ 
+     WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
+         :m_target{ target }, m_margin{ margin } {
+         CATCH_ENFORCE(margin >= 0, "Invalid margin: " << margin << '.'
+             << " Margin has to be non-negative.");
+     }
+ 
+     // Performs equivalent check of std::fabs(lhs - rhs) <= margin
+     // But without the subtraction to allow for INFINITY in comparison
+     bool WithinAbsMatcher::match(double const& matchee) const {
+         return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
+     }
+ 
+     std::string WithinAbsMatcher::describe() const {
+         return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
+     }
+ 
+     WithinUlpsMatcher::WithinUlpsMatcher(double target, uint64_t ulps, FloatingPointKind baseType)
+         :m_target{ target }, m_ulps{ ulps }, m_type{ baseType } {
+         CATCH_ENFORCE(m_type == FloatingPointKind::Double
+                    || m_ulps < (std::numeric_limits<uint32_t>::max)(),
+             "Provided ULP is impossibly large for a float comparison.");
+     }
+ 
+ #if defined(__clang__)
+ #pragma clang diagnostic push
+ // Clang <3.5 reports on the default branch in the switch below
+ #pragma clang diagnostic ignored "-Wunreachable-code"
+ #endif
+ 
+     bool WithinUlpsMatcher::match(double const& matchee) const {
+         switch (m_type) {
+         case FloatingPointKind::Float:
+             return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
+         case FloatingPointKind::Double:
+             return almostEqualUlps<double>(matchee, m_target, m_ulps);
+         default:
+             CATCH_INTERNAL_ERROR( "Unknown FloatingPointKind value" );
+         }
+     }
+ 
+ #if defined(__clang__)
+ #pragma clang diagnostic pop
+ #endif
+ 
+     std::string WithinUlpsMatcher::describe() const {
+         std::stringstream ret;
+ 
+         ret << "is within " << m_ulps << " ULPs of ";
+ 
+         if (m_type == FloatingPointKind::Float) {
+             write(ret, static_cast<float>(m_target));
+             ret << 'f';
+         } else {
+             write(ret, m_target);
+         }
+ 
+         ret << " ([";
+         if (m_type == FloatingPointKind::Double) {
+             write(ret, step(m_target, static_cast<double>(-INFINITY), m_ulps));
+             ret << ", ";
+             write(ret, step(m_target, static_cast<double>( INFINITY), m_ulps));
+         } else {
+             // We have to cast INFINITY to float because of MinGW, see #1782
+             write(ret, step(static_cast<float>(m_target), static_cast<float>(-INFINITY), m_ulps));
+             ret << ", ";
+             write(ret, step(static_cast<float>(m_target), static_cast<float>( INFINITY), m_ulps));
+         }
+         ret << "])";
+ 
+         return ret.str();
+     }
+ 
+     WithinRelMatcher::WithinRelMatcher(double target, double epsilon):
+         m_target(target),
+         m_epsilon(epsilon){
+         CATCH_ENFORCE(m_epsilon >= 0., "Relative comparison with epsilon <  0 does not make sense.");
+         CATCH_ENFORCE(m_epsilon  < 1., "Relative comparison with epsilon >= 1 does not make sense.");
+     }
+ 
+     bool WithinRelMatcher::match(double const& matchee) const {
+         const auto relMargin = m_epsilon * (std::max)(std::fabs(matchee), std::fabs(m_target));
+         return marginComparison(matchee, m_target,
+                                 std::isinf(relMargin)? 0 : relMargin);
+     }
+ 
+     std::string WithinRelMatcher::describe() const {
+         Catch::ReusableStringStream sstr;
+         sstr << "and " << m_target << " are within " << m_epsilon * 100. << "% of each other";
+         return sstr.str();
+     }
+ 
+ }// namespace Floating
+ 
+ Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff) {
+     return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Double);
+ }
+ 
+ Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff) {
+     return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Float);
+ }
+ 
+ Floating::WithinAbsMatcher WithinAbs(double target, double margin) {
+     return Floating::WithinAbsMatcher(target, margin);
+ }
+ 
+ Floating::WithinRelMatcher WithinRel(double target, double eps) {
+     return Floating::WithinRelMatcher(target, eps);
+ }
+ 
+ Floating::WithinRelMatcher WithinRel(double target) {
+     return Floating::WithinRelMatcher(target, std::numeric_limits<double>::epsilon() * 100);
+ }
+ 
+ Floating::WithinRelMatcher WithinRel(float target, float eps) {
+     return Floating::WithinRelMatcher(target, eps);
+ }
+ 
+ Floating::WithinRelMatcher WithinRel(float target) {
+     return Floating::WithinRelMatcher(target, std::numeric_limits<float>::epsilon() * 100);
+ }
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ // end catch_matchers_floating.cpp
+ // start catch_matchers_generic.cpp
+ 
+ std::string Catch::Matchers::Generic::Detail::finalizeDescription(const std::string& desc) {
+     if (desc.empty()) {
+         return "matches undescribed predicate";
+     } else {
+         return "matches predicate: \"" + desc + '"';
+     }
+ }
+ // end catch_matchers_generic.cpp
+ // start catch_matchers_string.cpp
+ 
+ #include <regex>
+ 
+ namespace Catch {
+ namespace Matchers {
+ 
+     namespace StdString {
+ 
+         CasedString::CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
+         :   m_caseSensitivity( caseSensitivity ),
+             m_str( adjustString( str ) )
+         {}
+         std::string CasedString::adjustString( std::string const& str ) const {
+             return m_caseSensitivity == CaseSensitive::No
+                    ? toLower( str )
+                    : str;
+         }
+         std::string CasedString::caseSensitivitySuffix() const {
+             return m_caseSensitivity == CaseSensitive::No
+                    ? " (case insensitive)"
+                    : std::string();
+         }
+ 
+         StringMatcherBase::StringMatcherBase( std::string const& operation, CasedString const& comparator )
+         : m_comparator( comparator ),
+           m_operation( operation ) {
+         }
+ 
+         std::string StringMatcherBase::describe() const {
+             std::string description;
+             description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
+                                         m_comparator.caseSensitivitySuffix().size());
+             description += m_operation;
+             description += ": \"";
+             description += m_comparator.m_str;
+             description += "\"";
+             description += m_comparator.caseSensitivitySuffix();
+             return description;
+         }
+ 
+         EqualsMatcher::EqualsMatcher( CasedString const& comparator ) : StringMatcherBase( "equals", comparator ) {}
+ 
+         bool EqualsMatcher::match( std::string const& source ) const {
+             return m_comparator.adjustString( source ) == m_comparator.m_str;
+         }
+ 
+         ContainsMatcher::ContainsMatcher( CasedString const& comparator ) : StringMatcherBase( "contains", comparator ) {}
+ 
+         bool ContainsMatcher::match( std::string const& source ) const {
+             return contains( m_comparator.adjustString( source ), m_comparator.m_str );
+         }
+ 
+         StartsWithMatcher::StartsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "starts with", comparator ) {}
+ 
+         bool StartsWithMatcher::match( std::string const& source ) const {
+             return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
+         }
+ 
+         EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}
+ 
+         bool EndsWithMatcher::match( std::string const& source ) const {
+             return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
+         }
+ 
+         RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity): m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}
+ 
+         bool RegexMatcher::match(std::string const& matchee) const {
+             auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
+             if (m_caseSensitivity == CaseSensitive::Choice::No) {
+                 flags |= std::regex::icase;
+             }
+             auto reg = std::regex(m_regex, flags);
+             return std::regex_match(matchee, reg);
+         }
+ 
+         std::string RegexMatcher::describe() const {
+             return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes)? " case sensitively" : " case insensitively");
+         }
+ 
+     } // namespace StdString
+ 
+     StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+         return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
+     }
+     StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+         return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
+     }
+     StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+         return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+     }
+     StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+         return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+     }
+ 
+     StdString::RegexMatcher Matches(std::string const& regex, CaseSensitive::Choice caseSensitivity) {
+         return StdString::RegexMatcher(regex, caseSensitivity);
+     }
+ 
+ } // namespace Matchers
+ } // namespace Catch
+ // end catch_matchers_string.cpp
+ // start catch_message.cpp
+ 
+ // start catch_uncaught_exceptions.h
+ 
+ namespace Catch {
+     bool uncaught_exceptions();
+ } // end namespace Catch
+ 
+ // end catch_uncaught_exceptions.h
+ #include <cassert>
+ #include <stack>
+ 
+ namespace Catch {
+ 
+     MessageInfo::MessageInfo(   StringRef const& _macroName,
+                                 SourceLineInfo const& _lineInfo,
+                                 ResultWas::OfType _type )
+     :   macroName( _macroName ),
+         lineInfo( _lineInfo ),
+         type( _type ),
+         sequence( ++globalCount )
+     {}
+ 
+     bool MessageInfo::operator==( MessageInfo const& other ) const {
+         return sequence == other.sequence;
+     }
+ 
+     bool MessageInfo::operator<( MessageInfo const& other ) const {
+         return sequence < other.sequence;
+     }
+ 
+     // This may need protecting if threading support is added
+     unsigned int MessageInfo::globalCount = 0;
+ 
+     ////////////////////////////////////////////////////////////////////////////
+ 
+     Catch::MessageBuilder::MessageBuilder( StringRef const& macroName,
+                                            SourceLineInfo const& lineInfo,
+                                            ResultWas::OfType type )
+         :m_info(macroName, lineInfo, type) {}
+ 
+     ////////////////////////////////////////////////////////////////////////////
+ 
+     ScopedMessage::ScopedMessage( MessageBuilder const& builder )
+     : m_info( builder.m_info ), m_moved()
+     {
+         m_info.message = builder.m_stream.str();
+         getResultCapture().pushScopedMessage( m_info );
+     }
+ 
+     ScopedMessage::ScopedMessage( ScopedMessage&& old )
+     : m_info( old.m_info ), m_moved()
+     {
+         old.m_moved = true;
+     }
+ 
+     ScopedMessage::~ScopedMessage() {
+         if ( !uncaught_exceptions() && !m_moved ){
+             getResultCapture().popScopedMessage(m_info);
+         }
+     }
+ 
+     Capturer::Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names ) {
+         auto trimmed = [&] (size_t start, size_t end) {
+             while (names[start] == ',' || isspace(static_cast<unsigned char>(names[start]))) {
+                 ++start;
+             }
+             while (names[end] == ',' || isspace(static_cast<unsigned char>(names[end]))) {
+                 --end;
+             }
+             return names.substr(start, end - start + 1);
+         };
+         auto skipq = [&] (size_t start, char quote) {
+             for (auto i = start + 1; i < names.size() ; ++i) {
+                 if (names[i] == quote)
+                     return i;
+                 if (names[i] == '\\')
+                     ++i;
+             }
+             CATCH_INTERNAL_ERROR("CAPTURE parsing encountered unmatched quote");
+         };
+ 
+         size_t start = 0;
+         std::stack<char> openings;
+         for (size_t pos = 0; pos < names.size(); ++pos) {
+             char c = names[pos];
+             switch (c) {
+             case '[':
+             case '{':
+             case '(':
+             // It is basically impossible to disambiguate between
+             // comparison and start of template args in this context
+ //            case '<':
+                 openings.push(c);
+                 break;
+             case ']':
+             case '}':
+             case ')':
+ //           case '>':
+                 openings.pop();
+                 break;
+             case '"':
+             case '\'':
+                 pos = skipq(pos, c);
+                 break;
+             case ',':
+                 if (start != pos && openings.empty()) {
+                     m_messages.emplace_back(macroName, lineInfo, resultType);
+                     m_messages.back().message = static_cast<std::string>(trimmed(start, pos));
+                     m_messages.back().message += " := ";
+                     start = pos;
+                 }
+             }
+         }
+         assert(openings.empty() && "Mismatched openings");
+         m_messages.emplace_back(macroName, lineInfo, resultType);
+         m_messages.back().message = static_cast<std::string>(trimmed(start, names.size() - 1));
+         m_messages.back().message += " := ";
+     }
+     Capturer::~Capturer() {
+         if ( !uncaught_exceptions() ){
+             assert( m_captured == m_messages.size() );
+             for( size_t i = 0; i < m_captured; ++i  )
+                 m_resultCapture.popScopedMessage( m_messages[i] );
+         }
+     }
+ 
+     void Capturer::captureValue( size_t index, std::string const& value ) {
+         assert( index < m_messages.size() );
+         m_messages[index].message += value;
+         m_resultCapture.pushScopedMessage( m_messages[index] );
+         m_captured++;
+     }
+ 
+ } // end namespace Catch
+ // end catch_message.cpp
+ // start catch_output_redirect.cpp
+ 
+ // start catch_output_redirect.h
+ #ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+ #define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+ 
+ #include <cstdio>
+ #include <iosfwd>
+ #include <string>
+ 
+ namespace Catch {
+ 
+     class RedirectedStream {
+         std::ostream& m_originalStream;
+         std::ostream& m_redirectionStream;
+         std::streambuf* m_prevBuf;
+ 
+     public:
+         RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream );
+         ~RedirectedStream();
+     };
+ 
+     class RedirectedStdOut {
+         ReusableStringStream m_rss;
+         RedirectedStream m_cout;
+     public:
+         RedirectedStdOut();
+         auto str() const -> std::string;
+     };
+ 
+     // StdErr has two constituent streams in C++, std::cerr and std::clog
+     // This means that we need to redirect 2 streams into 1 to keep proper
+     // order of writes
+     class RedirectedStdErr {
+         ReusableStringStream m_rss;
+         RedirectedStream m_cerr;
+         RedirectedStream m_clog;
+     public:
+         RedirectedStdErr();
+         auto str() const -> std::string;
+     };
+ 
+     class RedirectedStreams {
+     public:
+         RedirectedStreams(RedirectedStreams const&) = delete;
+         RedirectedStreams& operator=(RedirectedStreams const&) = delete;
+         RedirectedStreams(RedirectedStreams&&) = delete;
+         RedirectedStreams& operator=(RedirectedStreams&&) = delete;
+ 
+         RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr);
+         ~RedirectedStreams();
+     private:
+         std::string& m_redirectedCout;
+         std::string& m_redirectedCerr;
+         RedirectedStdOut m_redirectedStdOut;
+         RedirectedStdErr m_redirectedStdErr;
+     };
+ 
+ #if defined(CATCH_CONFIG_NEW_CAPTURE)
+ 
+     // Windows's implementation of std::tmpfile is terrible (it tries
+     // to create a file inside system folder, thus requiring elevated
+     // privileges for the binary), so we have to use tmpnam(_s) and
+     // create the file ourselves there.
+     class TempFile {
+     public:
+         TempFile(TempFile const&) = delete;
+         TempFile& operator=(TempFile const&) = delete;
+         TempFile(TempFile&&) = delete;
+         TempFile& operator=(TempFile&&) = delete;
+ 
+         TempFile();
+         ~TempFile();
+ 
+         std::FILE* getFile();
+         std::string getContents();
+ 
+     private:
+         std::FILE* m_file = nullptr;
+     #if defined(_MSC_VER)
+         char m_buffer[L_tmpnam] = { 0 };
+     #endif
+     };
+ 
+     class OutputRedirect {
+     public:
+         OutputRedirect(OutputRedirect const&) = delete;
+         OutputRedirect& operator=(OutputRedirect const&) = delete;
+         OutputRedirect(OutputRedirect&&) = delete;
+         OutputRedirect& operator=(OutputRedirect&&) = delete;
+ 
+         OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
+         ~OutputRedirect();
+ 
+     private:
+         int m_originalStdout = -1;
+         int m_originalStderr = -1;
+         TempFile m_stdoutFile;
+         TempFile m_stderrFile;
+         std::string& m_stdoutDest;
+         std::string& m_stderrDest;
+     };
+ 
+ #endif
+ 
+ } // end namespace Catch
+ 
+ #endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+ // end catch_output_redirect.h
+ #include <cstdio>
+ #include <cstring>
+ #include <fstream>
+ #include <sstream>
+ #include <stdexcept>
+ 
+ #if defined(CATCH_CONFIG_NEW_CAPTURE)
+     #if defined(_MSC_VER)
+     #include <io.h>      //_dup and _dup2
+     #define dup _dup
+     #define dup2 _dup2
+     #define fileno _fileno
+     #else
+     #include <unistd.h>  // dup and dup2
+     #endif
+ #endif
+ 
+ namespace Catch {
+ 
+     RedirectedStream::RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream )
+     :   m_originalStream( originalStream ),
+         m_redirectionStream( redirectionStream ),
+         m_prevBuf( m_originalStream.rdbuf() )
+     {
+         m_originalStream.rdbuf( m_redirectionStream.rdbuf() );
+     }
+ 
+     RedirectedStream::~RedirectedStream() {
+         m_originalStream.rdbuf( m_prevBuf );
+     }
+ 
+     RedirectedStdOut::RedirectedStdOut() : m_cout( Catch::cout(), m_rss.get() ) {}
+     auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }
+ 
+     RedirectedStdErr::RedirectedStdErr()
+     :   m_cerr( Catch::cerr(), m_rss.get() ),
+         m_clog( Catch::clog(), m_rss.get() )
+     {}
+     auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }
+ 
+     RedirectedStreams::RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr)
+     :   m_redirectedCout(redirectedCout),
+         m_redirectedCerr(redirectedCerr)
+     {}
+ 
+     RedirectedStreams::~RedirectedStreams() {
+         m_redirectedCout += m_redirectedStdOut.str();
+         m_redirectedCerr += m_redirectedStdErr.str();
+     }
+ 
+ #if defined(CATCH_CONFIG_NEW_CAPTURE)
+ 
+ #if defined(_MSC_VER)
+     TempFile::TempFile() {
+         if (tmpnam_s(m_buffer)) {
+             CATCH_RUNTIME_ERROR("Could not get a temp filename");
+         }
+         if (fopen_s(&m_file, m_buffer, "w+")) {
+             char buffer[100];
+             if (strerror_s(buffer, errno)) {
+                 CATCH_RUNTIME_ERROR("Could not translate errno to a string");
+             }
+             CATCH_RUNTIME_ERROR("Could not open the temp file: '" << m_buffer << "' because: " << buffer);
+         }
+     }
+ #else
+     TempFile::TempFile() {
+         m_file = std::tmpfile();
+         if (!m_file) {
+             CATCH_RUNTIME_ERROR("Could not create a temp file.");
+         }
+     }
+ 
+ #endif
+ 
+     TempFile::~TempFile() {
+          // TBD: What to do about errors here?
+          std::fclose(m_file);
+          // We manually create the file on Windows only, on Linux
+          // it will be autodeleted
+ #if defined(_MSC_VER)
+          std::remove(m_buffer);
+ #endif
+     }
+ 
+     FILE* TempFile::getFile() {
+         return m_file;
+     }
+ 
+     std::string TempFile::getContents() {
+         std::stringstream sstr;
+         char buffer[100] = {};
+         std::rewind(m_file);
+         while (std::fgets(buffer, sizeof(buffer), m_file)) {
+             sstr << buffer;
+         }
+         return sstr.str();
+     }
+ 
+     OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
+         m_originalStdout(dup(1)),
+         m_originalStderr(dup(2)),
+         m_stdoutDest(stdout_dest),
+         m_stderrDest(stderr_dest) {
+         dup2(fileno(m_stdoutFile.getFile()), 1);
+         dup2(fileno(m_stderrFile.getFile()), 2);
+     }
+ 
+     OutputRedirect::~OutputRedirect() {
+         Catch::cout() << std::flush;
+         fflush(stdout);
+         // Since we support overriding these streams, we flush cerr
+         // even though std::cerr is unbuffered
+         Catch::cerr() << std::flush;
+         Catch::clog() << std::flush;
+         fflush(stderr);
+ 
+         dup2(m_originalStdout, 1);
+         dup2(m_originalStderr, 2);
+ 
+         m_stdoutDest += m_stdoutFile.getContents();
+         m_stderrDest += m_stderrFile.getContents();
+     }
+ 
+ #endif // CATCH_CONFIG_NEW_CAPTURE
+ 
+ } // namespace Catch
+ 
+ #if defined(CATCH_CONFIG_NEW_CAPTURE)
+     #if defined(_MSC_VER)
+     #undef dup
+     #undef dup2
+     #undef fileno
+     #endif
+ #endif
+ // end catch_output_redirect.cpp
+ // start catch_polyfills.cpp
+ 
+ #include <cmath>
+ 
+ namespace Catch {
+ 
+ #if !defined(CATCH_CONFIG_POLYFILL_ISNAN)
+     bool isnan(float f) {
+         return std::isnan(f);
+     }
+     bool isnan(double d) {
+         return std::isnan(d);
+     }
+ #else
+     // For now we only use this for embarcadero
+     bool isnan(float f) {
+         return std::_isnan(f);
+     }
+     bool isnan(double d) {
+         return std::_isnan(d);
+     }
+ #endif
+ 
+ } // end namespace Catch
+ // end catch_polyfills.cpp
+ // start catch_random_number_generator.cpp
+ 
+ namespace Catch {
+ 
+ namespace {
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(push)
+ #pragma warning(disable:4146) // we negate uint32 during the rotate
+ #endif
+         // Safe rotr implementation thanks to John Regehr
+         uint32_t rotate_right(uint32_t val, uint32_t count) {
+             const uint32_t mask = 31;
+             count &= mask;
+             return (val >> count) | (val << (-count & mask));
+         }
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(pop)
+ #endif
+ 
+ }
+ 
+     SimplePcg32::SimplePcg32(result_type seed_) {
+         seed(seed_);
+     }
+ 
+     void SimplePcg32::seed(result_type seed_) {
+         m_state = 0;
+         (*this)();
+         m_state += seed_;
+         (*this)();
+     }
+ 
+     void SimplePcg32::discard(uint64_t skip) {
+         // We could implement this to run in O(log n) steps, but this
+         // should suffice for our use case.
+         for (uint64_t s = 0; s < skip; ++s) {
+             static_cast<void>((*this)());
+         }
+     }
+ 
+     SimplePcg32::result_type SimplePcg32::operator()() {
+         // prepare the output value
+         const uint32_t xorshifted = static_cast<uint32_t>(((m_state >> 18u) ^ m_state) >> 27u);
+         const auto output = rotate_right(xorshifted, m_state >> 59u);
+ 
+         // advance state
+         m_state = m_state * 6364136223846793005ULL + s_inc;
+ 
+         return output;
+     }
+ 
+     bool operator==(SimplePcg32 const& lhs, SimplePcg32 const& rhs) {
+         return lhs.m_state == rhs.m_state;
+     }
+ 
+     bool operator!=(SimplePcg32 const& lhs, SimplePcg32 const& rhs) {
+         return lhs.m_state != rhs.m_state;
+     }
+ }
+ // end catch_random_number_generator.cpp
+ // start catch_registry_hub.cpp
+ 
+ // start catch_test_case_registry_impl.h
+ 
+ #include <vector>
+ #include <set>
+ #include <algorithm>
+ #include <ios>
+ 
+ namespace Catch {
+ 
+     class TestCase;
+     struct IConfig;
+ 
+     std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases );
+ 
+     bool isThrowSafe( TestCase const& testCase, IConfig const& config );
+     bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
+ 
+     void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions );
+ 
+     std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
+     std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
+ 
+     class TestRegistry : public ITestCaseRegistry {
+     public:
+         virtual ~TestRegistry() = default;
+ 
+         virtual void registerTest( TestCase const& testCase );
+ 
+         std::vector<TestCase> const& getAllTests() const override;
+         std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const override;
+ 
+     private:
+         std::vector<TestCase> m_functions;
+         mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
+         mutable std::vector<TestCase> m_sortedFunctions;
+         std::size_t m_unnamedCount = 0;
+         std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
+     };
+ 
+     ///////////////////////////////////////////////////////////////////////////
+ 
+     class TestInvokerAsFunction : public ITestInvoker {
+         void(*m_testAsFunction)();
+     public:
+         TestInvokerAsFunction( void(*testAsFunction)() ) noexcept;
+ 
+         void invoke() const override;
+     };
+ 
+     std::string extractClassName( StringRef const& classOrQualifiedMethodName );
+ 
+     ///////////////////////////////////////////////////////////////////////////
+ 
+ } // end namespace Catch
+ 
+ // end catch_test_case_registry_impl.h
+ // start catch_reporter_registry.h
+ 
+ #include <map>
+ 
+ namespace Catch {
+ 
+     class ReporterRegistry : public IReporterRegistry {
+ 
+     public:
+ 
+         ~ReporterRegistry() override;
+ 
+         IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const override;
+ 
+         void registerReporter( std::string const& name, IReporterFactoryPtr const& factory );
+         void registerListener( IReporterFactoryPtr const& factory );
+ 
+         FactoryMap const& getFactories() const override;
+         Listeners const& getListeners() const override;
+ 
+     private:
+         FactoryMap m_factories;
+         Listeners m_listeners;
+     };
+ }
+ 
+ // end catch_reporter_registry.h
+ // start catch_tag_alias_registry.h
+ 
+ // start catch_tag_alias.h
+ 
+ #include <string>
+ 
+ namespace Catch {
+ 
+     struct TagAlias {
+         TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);
+ 
+         std::string tag;
+         SourceLineInfo lineInfo;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_tag_alias.h
+ #include <map>
+ 
+ namespace Catch {
+ 
+     class TagAliasRegistry : public ITagAliasRegistry {
+     public:
+         ~TagAliasRegistry() override;
+         TagAlias const* find( std::string const& alias ) const override;
+         std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
+         void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );
+ 
+     private:
+         std::map<std::string, TagAlias> m_registry;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_tag_alias_registry.h
+ // start catch_startup_exception_registry.h
+ 
+ #include <vector>
+ #include <exception>
+ 
+ namespace Catch {
+ 
+     class StartupExceptionRegistry {
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+     public:
+         void add(std::exception_ptr const& exception) noexcept;
+         std::vector<std::exception_ptr> const& getExceptions() const noexcept;
+     private:
+         std::vector<std::exception_ptr> m_exceptions;
+ #endif
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_startup_exception_registry.h
+ // start catch_singletons.hpp
+ 
+ namespace Catch {
+ 
+     struct ISingleton {
+         virtual ~ISingleton();
+     };
+ 
+     void addSingleton( ISingleton* singleton );
+     void cleanupSingletons();
+ 
+     template<typename SingletonImplT, typename InterfaceT = SingletonImplT, typename MutableInterfaceT = InterfaceT>
+     class Singleton : SingletonImplT, public ISingleton {
+ 
+         static auto getInternal() -> Singleton* {
+             static Singleton* s_instance = nullptr;
+             if( !s_instance ) {
+                 s_instance = new Singleton;
+                 addSingleton( s_instance );
+             }
+             return s_instance;
+         }
+ 
+     public:
+         static auto get() -> InterfaceT const& {
+             return *getInternal();
+         }
+         static auto getMutable() -> MutableInterfaceT& {
+             return *getInternal();
+         }
+     };
+ 
+ } // namespace Catch
+ 
+ // end catch_singletons.hpp
+ namespace Catch {
+ 
+     namespace {
+ 
+         class RegistryHub : public IRegistryHub, public IMutableRegistryHub,
+                             private NonCopyable {
+ 
+         public: // IRegistryHub
+             RegistryHub() = default;
+             IReporterRegistry const& getReporterRegistry() const override {
+                 return m_reporterRegistry;
+             }
+             ITestCaseRegistry const& getTestCaseRegistry() const override {
+                 return m_testCaseRegistry;
+             }
+             IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const override {
+                 return m_exceptionTranslatorRegistry;
+             }
+             ITagAliasRegistry const& getTagAliasRegistry() const override {
+                 return m_tagAliasRegistry;
+             }
+             StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
+                 return m_exceptionRegistry;
+             }
+ 
+         public: // IMutableRegistryHub
+             void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) override {
+                 m_reporterRegistry.registerReporter( name, factory );
+             }
+             void registerListener( IReporterFactoryPtr const& factory ) override {
+                 m_reporterRegistry.registerListener( factory );
+             }
+             void registerTest( TestCase const& testInfo ) override {
+                 m_testCaseRegistry.registerTest( testInfo );
+             }
+             void registerTranslator( const IExceptionTranslator* translator ) override {
+                 m_exceptionTranslatorRegistry.registerTranslator( translator );
+             }
+             void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) override {
+                 m_tagAliasRegistry.add( alias, tag, lineInfo );
+             }
+             void registerStartupException() noexcept override {
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+                 m_exceptionRegistry.add(std::current_exception());
+ #else
+                 CATCH_INTERNAL_ERROR("Attempted to register active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
+ #endif
+             }
+             IMutableEnumValuesRegistry& getMutableEnumValuesRegistry() override {
+                 return m_enumValuesRegistry;
+             }
+ 
+         private:
+             TestRegistry m_testCaseRegistry;
+             ReporterRegistry m_reporterRegistry;
+             ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
+             TagAliasRegistry m_tagAliasRegistry;
+             StartupExceptionRegistry m_exceptionRegistry;
+             Detail::EnumValuesRegistry m_enumValuesRegistry;
+         };
+     }
+ 
+     using RegistryHubSingleton = Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;
+ 
+     IRegistryHub const& getRegistryHub() {
+         return RegistryHubSingleton::get();
+     }
+     IMutableRegistryHub& getMutableRegistryHub() {
+         return RegistryHubSingleton::getMutable();
+     }
+     void cleanUp() {
+         cleanupSingletons();
+         cleanUpContext();
+     }
+     std::string translateActiveException() {
+         return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
+     }
+ 
+ } // end namespace Catch
+ // end catch_registry_hub.cpp
+ // start catch_reporter_registry.cpp
+ 
+ namespace Catch {
+ 
+     ReporterRegistry::~ReporterRegistry() = default;
+ 
+     IStreamingReporterPtr ReporterRegistry::create( std::string const& name, IConfigPtr const& config ) const {
+         auto it =  m_factories.find( name );
+         if( it == m_factories.end() )
+             return nullptr;
+         return it->second->create( ReporterConfig( config ) );
+     }
+ 
+     void ReporterRegistry::registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) {
+         m_factories.emplace(name, factory);
+     }
+     void ReporterRegistry::registerListener( IReporterFactoryPtr const& factory ) {
+         m_listeners.push_back( factory );
+     }
+ 
+     IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
+         return m_factories;
+     }
+     IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
+         return m_listeners;
+     }
+ 
+ }
+ // end catch_reporter_registry.cpp
+ // start catch_result_type.cpp
+ 
+ namespace Catch {
+ 
+     bool isOk( ResultWas::OfType resultType ) {
+         return ( resultType & ResultWas::FailureBit ) == 0;
+     }
+     bool isJustInfo( int flags ) {
+         return flags == ResultWas::Info;
+     }
+ 
+     ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
+         return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
+     }
+ 
+     bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
+     bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }
+ 
+ } // end namespace Catch
+ // end catch_result_type.cpp
+ // start catch_run_context.cpp
+ 
+ #include <cassert>
+ #include <algorithm>
+ #include <sstream>
+ 
+ namespace Catch {
+ 
+     namespace Generators {
+         struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker {
+             GeneratorBasePtr m_generator;
+ 
+             GeneratorTracker( TestCaseTracking::NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
+             :   TrackerBase( nameAndLocation, ctx, parent )
+             {}
+             ~GeneratorTracker();
+ 
+             static GeneratorTracker& acquire( TrackerContext& ctx, TestCaseTracking::NameAndLocation const& nameAndLocation ) {
+                 std::shared_ptr<GeneratorTracker> tracker;
+ 
+                 ITracker& currentTracker = ctx.currentTracker();
+                 // Under specific circumstances, the generator we want
+                 // to acquire is also the current tracker. If this is
+                 // the case, we have to avoid looking through current
+                 // tracker's children, and instead return the current
+                 // tracker.
+                 // A case where this check is important is e.g.
+                 //     for (int i = 0; i < 5; ++i) {
+                 //         int n = GENERATE(1, 2);
+                 //     }
+                 //
+                 // without it, the code above creates 5 nested generators.
+                 if (currentTracker.nameAndLocation() == nameAndLocation) {
+                     auto thisTracker = currentTracker.parent().findChild(nameAndLocation);
+                     assert(thisTracker);
+                     assert(thisTracker->isGeneratorTracker());
+                     tracker = std::static_pointer_cast<GeneratorTracker>(thisTracker);
+                 } else if ( TestCaseTracking::ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
+                     assert( childTracker );
+                     assert( childTracker->isGeneratorTracker() );
+                     tracker = std::static_pointer_cast<GeneratorTracker>( childTracker );
+                 } else {
+                     tracker = std::make_shared<GeneratorTracker>( nameAndLocation, ctx, &currentTracker );
+                     currentTracker.addChild( tracker );
+                 }
+ 
+                 if( !tracker->isComplete() ) {
+                     tracker->open();
+                 }
+ 
+                 return *tracker;
+             }
+ 
+             // TrackerBase interface
+             bool isGeneratorTracker() const override { return true; }
+             auto hasGenerator() const -> bool override {
+                 return !!m_generator;
+             }
+             void close() override {
+                 TrackerBase::close();
+                 // If a generator has a child (it is followed by a section)
+                 // and none of its children have started, then we must wait
+                 // until later to start consuming its values.
+                 // This catches cases where `GENERATE` is placed between two
+                 // `SECTION`s.
+                 // **The check for m_children.empty cannot be removed**.
+                 // doing so would break `GENERATE` _not_ followed by `SECTION`s.
+                 const bool should_wait_for_child = [&]() {
+                     // No children -> nobody to wait for
+                     if ( m_children.empty() ) {
+                         return false;
+                     }
+                     // If at least one child started executing, don't wait
+                     if ( std::find_if(
+                              m_children.begin(),
+                              m_children.end(),
+                              []( TestCaseTracking::ITrackerPtr tracker ) {
+                                  return tracker->hasStarted();
+                              } ) != m_children.end() ) {
+                         return false;
+                     }
+ 
+                     // No children have started. We need to check if they _can_
+                     // start, and thus we should wait for them, or they cannot
+                     // start (due to filters), and we shouldn't wait for them
+                     auto* parent = m_parent;
+                     // This is safe: there is always at least one section
+                     // tracker in a test case tracking tree
+                     while ( !parent->isSectionTracker() ) {
+                         parent = &( parent->parent() );
+                     }
+                     assert( parent &&
+                             "Missing root (test case) level section" );
+ 
+                     auto const& parentSection =
+                         static_cast<SectionTracker&>( *parent );
+                     auto const& filters = parentSection.getFilters();
+                     // No filters -> no restrictions on running sections
+                     if ( filters.empty() ) {
+                         return true;
+                     }
+ 
+                     for ( auto const& child : m_children ) {
+                         if ( child->isSectionTracker() &&
+                              std::find( filters.begin(),
+                                         filters.end(),
+                                         static_cast<SectionTracker&>( *child )
+                                             .trimmedName() ) !=
+                                  filters.end() ) {
+                             return true;
+                         }
+                     }
+                     return false;
+                 }();
+ 
+                 // This check is a bit tricky, because m_generator->next()
+                 // has a side-effect, where it consumes generator's current
+                 // value, but we do not want to invoke the side-effect if
+                 // this generator is still waiting for any child to start.
+                 if ( should_wait_for_child ||
+                      ( m_runState == CompletedSuccessfully &&
+                        m_generator->next() ) ) {
+                     m_children.clear();
+                     m_runState = Executing;
+                 }
+             }
+ 
+             // IGeneratorTracker interface
+             auto getGenerator() const -> GeneratorBasePtr const& override {
+                 return m_generator;
+             }
+             void setGenerator( GeneratorBasePtr&& generator ) override {
+                 m_generator = std::move( generator );
+             }
+         };
+         GeneratorTracker::~GeneratorTracker() {}
+     }
+ 
+     RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
+     :   m_runInfo(_config->name()),
+         m_context(getCurrentMutableContext()),
+         m_config(_config),
+         m_reporter(std::move(reporter)),
+         m_lastAssertionInfo{ StringRef(), SourceLineInfo("",0), StringRef(), ResultDisposition::Normal },
+         m_includeSuccessfulResults( m_config->includeSuccessfulResults() || m_reporter->getPreferences().shouldReportAllAssertions )
+     {
+         m_context.setRunner(this);
+         m_context.setConfig(m_config);
+         m_context.setResultCapture(this);
+         m_reporter->testRunStarting(m_runInfo);
+     }
+ 
+     RunContext::~RunContext() {
+         m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
+     }
+ 
+     void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
+         m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
+     }
+ 
+     void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
+         m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
+     }
+ 
+     Totals RunContext::runTest(TestCase const& testCase) {
+         Totals prevTotals = m_totals;
+ 
+         std::string redirectedCout;
+         std::string redirectedCerr;
+ 
+         auto const& testInfo = testCase.getTestCaseInfo();
+ 
+         m_reporter->testCaseStarting(testInfo);
+ 
+         m_activeTestCase = &testCase;
+ 
+         ITracker& rootTracker = m_trackerContext.startRun();
+         assert(rootTracker.isSectionTracker());
+         static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
+         do {
+             m_trackerContext.startCycle();
+             m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
+             runCurrentTest(redirectedCout, redirectedCerr);
+         } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());
+ 
+         Totals deltaTotals = m_totals.delta(prevTotals);
+         if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
+             deltaTotals.assertions.failed++;
+             deltaTotals.testCases.passed--;
+             deltaTotals.testCases.failed++;
+         }
+         m_totals.testCases += deltaTotals.testCases;
+         m_reporter->testCaseEnded(TestCaseStats(testInfo,
+                                   deltaTotals,
+                                   redirectedCout,
+                                   redirectedCerr,
+                                   aborting()));
+ 
+         m_activeTestCase = nullptr;
+         m_testCaseTracker = nullptr;
+ 
+         return deltaTotals;
+     }
+ 
+     IConfigPtr RunContext::config() const {
+         return m_config;
+     }
+ 
+     IStreamingReporter& RunContext::reporter() const {
+         return *m_reporter;
+     }
+ 
+     void RunContext::assertionEnded(AssertionResult const & result) {
+         if (result.getResultType() == ResultWas::Ok) {
+             m_totals.assertions.passed++;
+             m_lastAssertionPassed = true;
+         } else if (!result.isOk()) {
+             m_lastAssertionPassed = false;
+             if( m_activeTestCase->getTestCaseInfo().okToFail() )
+                 m_totals.assertions.failedButOk++;
+             else
+                 m_totals.assertions.failed++;
+         }
+         else {
+             m_lastAssertionPassed = true;
+         }
+ 
+         // We have no use for the return value (whether messages should be cleared), because messages were made scoped
+         // and should be let to clear themselves out.
+         static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));
+ 
+         if (result.getResultType() != ResultWas::Warning)
+             m_messageScopes.clear();
+ 
+         // Reset working state
+         resetAssertionInfo();
+         m_lastResult = result;
+     }
+     void RunContext::resetAssertionInfo() {
+         m_lastAssertionInfo.macroName = StringRef();
+         m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
+     }
+ 
+     bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
+         ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
+         if (!sectionTracker.isOpen())
+             return false;
+         m_activeSections.push_back(&sectionTracker);
+ 
+         m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
+ 
+         m_reporter->sectionStarting(sectionInfo);
+ 
+         assertions = m_totals.assertions;
+ 
+         return true;
+     }
+     auto RunContext::acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
+         using namespace Generators;
+         GeneratorTracker& tracker = GeneratorTracker::acquire(m_trackerContext,
+                                                               TestCaseTracking::NameAndLocation( static_cast<std::string>(generatorName), lineInfo ) );
+         m_lastAssertionInfo.lineInfo = lineInfo;
+         return tracker;
+     }
+ 
+     bool RunContext::testForMissingAssertions(Counts& assertions) {
+         if (assertions.total() != 0)
+             return false;
+         if (!m_config->warnAboutMissingAssertions())
+             return false;
+         if (m_trackerContext.currentTracker().hasChildren())
+             return false;
+         m_totals.assertions.failed++;
+         assertions.failed++;
+         return true;
+     }
+ 
+     void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
+         Counts assertions = m_totals.assertions - endInfo.prevAssertions;
+         bool missingAssertions = testForMissingAssertions(assertions);
+ 
+         if (!m_activeSections.empty()) {
+             m_activeSections.back()->close();
+             m_activeSections.pop_back();
+         }
+ 
+         m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
+         m_messages.clear();
+         m_messageScopes.clear();
+     }
+ 
+     void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
+         if (m_unfinishedSections.empty())
+             m_activeSections.back()->fail();
+         else
+             m_activeSections.back()->close();
+         m_activeSections.pop_back();
+ 
+         m_unfinishedSections.push_back(endInfo);
+     }
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+     void RunContext::benchmarkPreparing(std::string const& name) {
+         m_reporter->benchmarkPreparing(name);
+     }
+     void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
+         m_reporter->benchmarkStarting( info );
+     }
+     void RunContext::benchmarkEnded( BenchmarkStats<> const& stats ) {
+         m_reporter->benchmarkEnded( stats );
+     }
+     void RunContext::benchmarkFailed(std::string const & error) {
+         m_reporter->benchmarkFailed(error);
+     }
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     void RunContext::pushScopedMessage(MessageInfo const & message) {
+         m_messages.push_back(message);
+     }
+ 
+     void RunContext::popScopedMessage(MessageInfo const & message) {
+         m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
+     }
+ 
+     void RunContext::emplaceUnscopedMessage( MessageBuilder const& builder ) {
+         m_messageScopes.emplace_back( builder );
+     }
+ 
+     std::string RunContext::getCurrentTestName() const {
+         return m_activeTestCase
+             ? m_activeTestCase->getTestCaseInfo().name
+             : std::string();
+     }
+ 
+     const AssertionResult * RunContext::getLastResult() const {
+         return &(*m_lastResult);
+     }
+ 
+     void RunContext::exceptionEarlyReported() {
+         m_shouldReportUnexpected = false;
+     }
+ 
+     void RunContext::handleFatalErrorCondition( StringRef message ) {
+         // First notify reporter that bad things happened
+         m_reporter->fatalErrorEncountered(message);
+ 
+         // Don't rebuild the result -- the stringification itself can cause more fatal errors
+         // Instead, fake a result data.
+         AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
+         tempResult.message = static_cast<std::string>(message);
+         AssertionResult result(m_lastAssertionInfo, tempResult);
+ 
+         assertionEnded(result);
+ 
+         handleUnfinishedSections();
+ 
+         // Recreate section for test case (as we will lose the one that was in scope)
+         auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
+         SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
+ 
+         Counts assertions;
+         assertions.failed = 1;
+         SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
+         m_reporter->sectionEnded(testCaseSectionStats);
+ 
+         auto const& testInfo = m_activeTestCase->getTestCaseInfo();
+ 
+         Totals deltaTotals;
+         deltaTotals.testCases.failed = 1;
+         deltaTotals.assertions.failed = 1;
+         m_reporter->testCaseEnded(TestCaseStats(testInfo,
+                                   deltaTotals,
+                                   std::string(),
+                                   std::string(),
+                                   false));
+         m_totals.testCases.failed++;
+         testGroupEnded(std::string(), m_totals, 1, 1);
+         m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
+     }
+ 
+     bool RunContext::lastAssertionPassed() {
+          return m_lastAssertionPassed;
+     }
+ 
+     void RunContext::assertionPassed() {
+         m_lastAssertionPassed = true;
+         ++m_totals.assertions.passed;
+         resetAssertionInfo();
+         m_messageScopes.clear();
+     }
+ 
+     bool RunContext::aborting() const {
+         return m_totals.assertions.failed >= static_cast<std::size_t>(m_config->abortAfter());
+     }
+ 
+     void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
+         auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
+         SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
+         m_reporter->sectionStarting(testCaseSection);
+         Counts prevAssertions = m_totals.assertions;
+         double duration = 0;
+         m_shouldReportUnexpected = true;
+         m_lastAssertionInfo = { "TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal };
+ 
+         seedRng(*m_config);
+ 
+         Timer timer;
+         CATCH_TRY {
+             if (m_reporter->getPreferences().shouldRedirectStdOut) {
+ #if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
+                 RedirectedStreams redirectedStreams(redirectedCout, redirectedCerr);
+ 
+                 timer.start();
+                 invokeActiveTestCase();
+ #else
+                 OutputRedirect r(redirectedCout, redirectedCerr);
+                 timer.start();
+                 invokeActiveTestCase();
+ #endif
+             } else {
+                 timer.start();
+                 invokeActiveTestCase();
+             }
+             duration = timer.getElapsedSeconds();
+         } CATCH_CATCH_ANON (TestFailureException&) {
+             // This just means the test was aborted due to failure
+         } CATCH_CATCH_ALL {
+             // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
+             // are reported without translation at the point of origin.
+             if( m_shouldReportUnexpected ) {
+                 AssertionReaction dummyReaction;
+                 handleUnexpectedInflightException( m_lastAssertionInfo, translateActiveException(), dummyReaction );
+             }
+         }
+         Counts assertions = m_totals.assertions - prevAssertions;
+         bool missingAssertions = testForMissingAssertions(assertions);
+ 
+         m_testCaseTracker->close();
+         handleUnfinishedSections();
+         m_messages.clear();
+         m_messageScopes.clear();
+ 
+         SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
+         m_reporter->sectionEnded(testCaseSectionStats);
+     }
+ 
+     void RunContext::invokeActiveTestCase() {
+         FatalConditionHandlerGuard _(&m_fatalConditionhandler);
+         m_activeTestCase->invoke();
+     }
+ 
+     void RunContext::handleUnfinishedSections() {
+         // If sections ended prematurely due to an exception we stored their
+         // infos here so we can tear them down outside the unwind process.
+         for (auto it = m_unfinishedSections.rbegin(),
+              itEnd = m_unfinishedSections.rend();
+              it != itEnd;
+              ++it)
+             sectionEnded(*it);
+         m_unfinishedSections.clear();
+     }
+ 
+     void RunContext::handleExpr(
+         AssertionInfo const& info,
+         ITransientExpression const& expr,
+         AssertionReaction& reaction
+     ) {
+         m_reporter->assertionStarting( info );
+ 
+         bool negated = isFalseTest( info.resultDisposition );
+         bool result = expr.getResult() != negated;
+ 
+         if( result ) {
+             if (!m_includeSuccessfulResults) {
+                 assertionPassed();
+             }
+             else {
+                 reportExpr(info, ResultWas::Ok, &expr, negated);
+             }
+         }
+         else {
+             reportExpr(info, ResultWas::ExpressionFailed, &expr, negated );
+             populateReaction( reaction );
+         }
+     }
+     void RunContext::reportExpr(
+             AssertionInfo const &info,
+             ResultWas::OfType resultType,
+             ITransientExpression const *expr,
+             bool negated ) {
+ 
+         m_lastAssertionInfo = info;
+         AssertionResultData data( resultType, LazyExpression( negated ) );
+ 
+         AssertionResult assertionResult{ info, data };
+         assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;
+ 
+         assertionEnded( assertionResult );
+     }
+ 
+     void RunContext::handleMessage(
+             AssertionInfo const& info,
+             ResultWas::OfType resultType,
+             StringRef const& message,
+             AssertionReaction& reaction
+     ) {
+         m_reporter->assertionStarting( info );
+ 
+         m_lastAssertionInfo = info;
+ 
+         AssertionResultData data( resultType, LazyExpression( false ) );
+         data.message = static_cast<std::string>(message);
+         AssertionResult assertionResult{ m_lastAssertionInfo, data };
+         assertionEnded( assertionResult );
+         if( !assertionResult.isOk() )
+             populateReaction( reaction );
+     }
+     void RunContext::handleUnexpectedExceptionNotThrown(
+             AssertionInfo const& info,
+             AssertionReaction& reaction
+     ) {
+         handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
+     }
+ 
+     void RunContext::handleUnexpectedInflightException(
+             AssertionInfo const& info,
+             std::string const& message,
+             AssertionReaction& reaction
+     ) {
+         m_lastAssertionInfo = info;
+ 
+         AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
+         data.message = message;
+         AssertionResult assertionResult{ info, data };
+         assertionEnded( assertionResult );
+         populateReaction( reaction );
+     }
+ 
+     void RunContext::populateReaction( AssertionReaction& reaction ) {
+         reaction.shouldDebugBreak = m_config->shouldDebugBreak();
+         reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
+     }
+ 
+     void RunContext::handleIncomplete(
+             AssertionInfo const& info
+     ) {
+         m_lastAssertionInfo = info;
+ 
+         AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
+         data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
+         AssertionResult assertionResult{ info, data };
+         assertionEnded( assertionResult );
+     }
+     void RunContext::handleNonExpr(
+             AssertionInfo const &info,
+             ResultWas::OfType resultType,
+             AssertionReaction &reaction
+     ) {
+         m_lastAssertionInfo = info;
+ 
+         AssertionResultData data( resultType, LazyExpression( false ) );
+         AssertionResult assertionResult{ info, data };
+         assertionEnded( assertionResult );
+ 
+         if( !assertionResult.isOk() )
+             populateReaction( reaction );
+     }
+ 
+     IResultCapture& getResultCapture() {
+         if (auto* capture = getCurrentContext().getResultCapture())
+             return *capture;
+         else
+             CATCH_INTERNAL_ERROR("No result capture instance");
+     }
+ 
+     void seedRng(IConfig const& config) {
+         if (config.rngSeed() != 0) {
+             std::srand(config.rngSeed());
+             rng().seed(config.rngSeed());
+         }
+     }
+ 
+     unsigned int rngSeed() {
+         return getCurrentContext().getConfig()->rngSeed();
+     }
+ 
+ }
+ // end catch_run_context.cpp
+ // start catch_section.cpp
+ 
+ namespace Catch {
+ 
+     Section::Section( SectionInfo const& info )
+     :   m_info( info ),
+         m_sectionIncluded( getResultCapture().sectionStarted( m_info, m_assertions ) )
+     {
+         m_timer.start();
+     }
+ 
+     Section::~Section() {
+         if( m_sectionIncluded ) {
+             SectionEndInfo endInfo{ m_info, m_assertions, m_timer.getElapsedSeconds() };
+             if( uncaught_exceptions() )
+                 getResultCapture().sectionEndedEarly( endInfo );
+             else
+                 getResultCapture().sectionEnded( endInfo );
+         }
+     }
+ 
+     // This indicates whether the section should be executed or not
+     Section::operator bool() const {
+         return m_sectionIncluded;
+     }
+ 
+ } // end namespace Catch
+ // end catch_section.cpp
+ // start catch_section_info.cpp
+ 
+ namespace Catch {
+ 
+     SectionInfo::SectionInfo
+         (   SourceLineInfo const& _lineInfo,
+             std::string const& _name )
+     :   name( _name ),
+         lineInfo( _lineInfo )
+     {}
+ 
+ } // end namespace Catch
+ // end catch_section_info.cpp
+ // start catch_session.cpp
+ 
+ // start catch_session.h
+ 
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     class Session : NonCopyable {
+     public:
+ 
+         Session();
+         ~Session() override;
+ 
+         void showHelp() const;
+         void libIdentify();
+ 
+         int applyCommandLine( int argc, char const * const * argv );
+     #if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
+         int applyCommandLine( int argc, wchar_t const * const * argv );
+     #endif
+ 
+         void useConfigData( ConfigData const& configData );
+ 
+         template<typename CharT>
+         int run(int argc, CharT const * const argv[]) {
+             if (m_startupExceptions)
+                 return 1;
+             int returnCode = applyCommandLine(argc, argv);
+             if (returnCode == 0)
+                 returnCode = run();
+             return returnCode;
+         }
+ 
+         int run();
+ 
+         clara::Parser const& cli() const;
+         void cli( clara::Parser const& newParser );
+         ConfigData& configData();
+         Config& config();
+     private:
+         int runInternal();
+ 
+         clara::Parser m_cli;
+         ConfigData m_configData;
+         std::shared_ptr<Config> m_config;
+         bool m_startupExceptions = false;
+     };
+ 
+ } // end namespace Catch
+ 
+ // end catch_session.h
+ // start catch_version.h
+ 
+ #include <iosfwd>
+ 
+ namespace Catch {
+ 
+     // Versioning information
+     struct Version {
+         Version( Version const& ) = delete;
+         Version& operator=( Version const& ) = delete;
+         Version(    unsigned int _majorVersion,
+                     unsigned int _minorVersion,
+                     unsigned int _patchNumber,
+                     char const * const _branchName,
+                     unsigned int _buildNumber );
+ 
+         unsigned int const majorVersion;
+         unsigned int const minorVersion;
+         unsigned int const patchNumber;
+ 
+         // buildNumber is only used if branchName is not null
+         char const * const branchName;
+         unsigned int const buildNumber;
+ 
+         friend std::ostream& operator << ( std::ostream& os, Version const& version );
+     };
+ 
+     Version const& libraryVersion();
+ }
+ 
+ // end catch_version.h
+ #include <cstdlib>
+ #include <iomanip>
+ #include <set>
+ #include <iterator>
+ 
+ namespace Catch {
+ 
+     namespace {
+         const int MaxExitCode = 255;
+ 
+         IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
+             auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
+             CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");
+ 
+             return reporter;
+         }
+ 
+         IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
+             if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()) {
+                 return createReporter(config->getReporterName(), config);
+             }
+ 
+             // On older platforms, returning std::unique_ptr<ListeningReporter>
+             // when the return type is std::unique_ptr<IStreamingReporter>
+             // doesn't compile without a std::move call. However, this causes
+             // a warning on newer platforms. Thus, we have to work around
+             // it a bit and downcast the pointer manually.
+             auto ret = std::unique_ptr<IStreamingReporter>(new ListeningReporter);
+             auto& multi = static_cast<ListeningReporter&>(*ret);
+             auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
+             for (auto const& listener : listeners) {
+                 multi.addListener(listener->create(Catch::ReporterConfig(config)));
+             }
+             multi.addReporter(createReporter(config->getReporterName(), config));
+             return ret;
+         }
+ 
+         class TestGroup {
+         public:
+             explicit TestGroup(std::shared_ptr<Config> const& config)
+             : m_config{config}
+             , m_context{config, makeReporter(config)}
+             {
+                 auto const& allTestCases = getAllTestCasesSorted(*m_config);
+                 m_matches = m_config->testSpec().matchesByFilter(allTestCases, *m_config);
+                 auto const& invalidArgs = m_config->testSpec().getInvalidArgs();
+ 
+                 if (m_matches.empty() && invalidArgs.empty()) {
+                     for (auto const& test : allTestCases)
+                         if (!test.isHidden())
+                             m_tests.emplace(&test);
+                 } else {
+                     for (auto const& match : m_matches)
+                         m_tests.insert(match.tests.begin(), match.tests.end());
+                 }
+             }
+ 
+             Totals execute() {
+                 auto const& invalidArgs = m_config->testSpec().getInvalidArgs();
+                 Totals totals;
+                 m_context.testGroupStarting(m_config->name(), 1, 1);
+                 for (auto const& testCase : m_tests) {
+                     if (!m_context.aborting())
+                         totals += m_context.runTest(*testCase);
+                     else
+                         m_context.reporter().skipTest(*testCase);
+                 }
+ 
+                 for (auto const& match : m_matches) {
+                     if (match.tests.empty()) {
+                         m_context.reporter().noMatchingTestCases(match.name);
+                         totals.error = -1;
+                     }
+                 }
+ 
+                 if (!invalidArgs.empty()) {
+                     for (auto const& invalidArg: invalidArgs)
+                          m_context.reporter().reportInvalidArguments(invalidArg);
+                 }
+ 
+                 m_context.testGroupEnded(m_config->name(), totals, 1, 1);
+                 return totals;
+             }
+ 
+         private:
+             using Tests = std::set<TestCase const*>;
+ 
+             std::shared_ptr<Config> m_config;
+             RunContext m_context;
+             Tests m_tests;
+             TestSpec::Matches m_matches;
+         };
+ 
+         void applyFilenamesAsTags(Catch::IConfig const& config) {
+             auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
+             for (auto& testCase : tests) {
+                 auto tags = testCase.tags;
+ 
+                 std::string filename = testCase.lineInfo.file;
+                 auto lastSlash = filename.find_last_of("\\/");
+                 if (lastSlash != std::string::npos) {
+                     filename.erase(0, lastSlash);
+                     filename[0] = '#';
+                 }
+                 else
+                 {
+                     filename.insert(0, "#");
+                 }
+ 
+                 auto lastDot = filename.find_last_of('.');
+                 if (lastDot != std::string::npos) {
+                     filename.erase(lastDot);
+                 }
+ 
+                 tags.push_back(std::move(filename));
+                 setTags(testCase, tags);
+             }
+         }
+ 
+     } // anon namespace
+ 
+     Session::Session() {
+         static bool alreadyInstantiated = false;
+         if( alreadyInstantiated ) {
+             CATCH_TRY { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
+             CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
+         }
+ 
+         // There cannot be exceptions at startup in no-exception mode.
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+         const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
+         if ( !exceptions.empty() ) {
+             config();
+             getCurrentMutableContext().setConfig(m_config);
+ 
+             m_startupExceptions = true;
+             Colour colourGuard( Colour::Red );
+             Catch::cerr() << "Errors occurred during startup!" << '\n';
+             // iterate over all exceptions and notify user
+             for ( const auto& ex_ptr : exceptions ) {
+                 try {
+                     std::rethrow_exception(ex_ptr);
+                 } catch ( std::exception const& ex ) {
+                     Catch::cerr() << Column( ex.what() ).indent(2) << '\n';
+                 }
+             }
+         }
+ #endif
+ 
+         alreadyInstantiated = true;
+         m_cli = makeCommandLineParser( m_configData );
+     }
+     Session::~Session() {
+         Catch::cleanUp();
+     }
+ 
+     void Session::showHelp() const {
+         Catch::cout()
+                 << "\nCatch v" << libraryVersion() << "\n"
+                 << m_cli << std::endl
+                 << "For more detailed usage please see the project docs\n" << std::endl;
+     }
+     void Session::libIdentify() {
+         Catch::cout()
+                 << std::left << std::setw(16) << "description: " << "A Catch2 test executable\n"
+                 << std::left << std::setw(16) << "category: " << "testframework\n"
+                 << std::left << std::setw(16) << "framework: " << "Catch Test\n"
+                 << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
+     }
+ 
+     int Session::applyCommandLine( int argc, char const * const * argv ) {
+         if( m_startupExceptions )
+             return 1;
+ 
+         auto result = m_cli.parse( clara::Args( argc, argv ) );
+         if( !result ) {
+             config();
+             getCurrentMutableContext().setConfig(m_config);
+             Catch::cerr()
+                 << Colour( Colour::Red )
+                 << "\nError(s) in input:\n"
+                 << Column( result.errorMessage() ).indent( 2 )
+                 << "\n\n";
+             Catch::cerr() << "Run with -? for usage\n" << std::endl;
+             return MaxExitCode;
+         }
+ 
+         if( m_configData.showHelp )
+             showHelp();
+         if( m_configData.libIdentify )
+             libIdentify();
+         m_config.reset();
+         return 0;
+     }
+ 
+ #if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
+     int Session::applyCommandLine( int argc, wchar_t const * const * argv ) {
+ 
+         char **utf8Argv = new char *[ argc ];
+ 
+         for ( int i = 0; i < argc; ++i ) {
+             int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, nullptr, 0, nullptr, nullptr );
+ 
+             utf8Argv[ i ] = new char[ bufSize ];
+ 
+             WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, nullptr, nullptr );
+         }
+ 
+         int returnCode = applyCommandLine( argc, utf8Argv );
+ 
+         for ( int i = 0; i < argc; ++i )
+             delete [] utf8Argv[ i ];
+ 
+         delete [] utf8Argv;
+ 
+         return returnCode;
+     }
+ #endif
+ 
+     void Session::useConfigData( ConfigData const& configData ) {
+         m_configData = configData;
+         m_config.reset();
+     }
+ 
+     int Session::run() {
+         if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
+             Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
+             static_cast<void>(std::getchar());
+         }
+         int exitCode = runInternal();
+         if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
+             Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
+             static_cast<void>(std::getchar());
+         }
+         return exitCode;
+     }
+ 
+     clara::Parser const& Session::cli() const {
+         return m_cli;
+     }
+     void Session::cli( clara::Parser const& newParser ) {
+         m_cli = newParser;
+     }
+     ConfigData& Session::configData() {
+         return m_configData;
+     }
+     Config& Session::config() {
+         if( !m_config )
+             m_config = std::make_shared<Config>( m_configData );
+         return *m_config;
+     }
+ 
+     int Session::runInternal() {
+         if( m_startupExceptions )
+             return 1;
+ 
+         if (m_configData.showHelp || m_configData.libIdentify) {
+             return 0;
+         }
+ 
+         CATCH_TRY {
+             config(); // Force config to be constructed
+ 
+             seedRng( *m_config );
+ 
+             if( m_configData.filenamesAsTags )
+                 applyFilenamesAsTags( *m_config );
+ 
+             // Handle list request
+             if( Option<std::size_t> listed = list( m_config ) )
+                 return (std::min) (MaxExitCode, static_cast<int>(*listed));
+ 
+             TestGroup tests { m_config };
+             auto const totals = tests.execute();
+ 
+             if( m_config->warnAboutNoTests() && totals.error == -1 )
+                 return 2;
+ 
+             // Note that on unices only the lower 8 bits are usually used, clamping
+             // the return value to 255 prevents false negative when some multiple
+             // of 256 tests has failed
+             return (std::min) (MaxExitCode, (std::max) (totals.error, static_cast<int>(totals.assertions.failed)));
+         }
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+         catch( std::exception& ex ) {
+             Catch::cerr() << ex.what() << std::endl;
+             return MaxExitCode;
+         }
+ #endif
+     }
+ 
+ } // end namespace Catch
+ // end catch_session.cpp
+ // start catch_singletons.cpp
+ 
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     namespace {
+         static auto getSingletons() -> std::vector<ISingleton*>*& {
+             static std::vector<ISingleton*>* g_singletons = nullptr;
+             if( !g_singletons )
+                 g_singletons = new std::vector<ISingleton*>();
+             return g_singletons;
+         }
+     }
+ 
+     ISingleton::~ISingleton() {}
+ 
+     void addSingleton(ISingleton* singleton ) {
+         getSingletons()->push_back( singleton );
+     }
+     void cleanupSingletons() {
+         auto& singletons = getSingletons();
+         for( auto singleton : *singletons )
+             delete singleton;
+         delete singletons;
+         singletons = nullptr;
+     }
+ 
+ } // namespace Catch
+ // end catch_singletons.cpp
+ // start catch_startup_exception_registry.cpp
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+ namespace Catch {
+ void StartupExceptionRegistry::add( std::exception_ptr const& exception ) noexcept {
+         CATCH_TRY {
+             m_exceptions.push_back(exception);
+         } CATCH_CATCH_ALL {
+             // If we run out of memory during start-up there's really not a lot more we can do about it
+             std::terminate();
+         }
+     }
+ 
+     std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
+         return m_exceptions;
+     }
+ 
+ } // end namespace Catch
+ #endif
+ // end catch_startup_exception_registry.cpp
+ // start catch_stream.cpp
+ 
+ #include <cstdio>
+ #include <iostream>
+ #include <fstream>
+ #include <sstream>
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     Catch::IStream::~IStream() = default;
+ 
+     namespace Detail { namespace {
+         template<typename WriterF, std::size_t bufferSize=256>
+         class StreamBufImpl : public std::streambuf {
+             char data[bufferSize];
+             WriterF m_writer;
+ 
+         public:
+             StreamBufImpl() {
+                 setp( data, data + sizeof(data) );
+             }
+ 
+             ~StreamBufImpl() noexcept {
+                 StreamBufImpl::sync();
+             }
+ 
+         private:
+             int overflow( int c ) override {
+                 sync();
+ 
+                 if( c != EOF ) {
+                     if( pbase() == epptr() )
+                         m_writer( std::string( 1, static_cast<char>( c ) ) );
+                     else
+                         sputc( static_cast<char>( c ) );
+                 }
+                 return 0;
+             }
+ 
+             int sync() override {
+                 if( pbase() != pptr() ) {
+                     m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
+                     setp( pbase(), epptr() );
+                 }
+                 return 0;
+             }
+         };
+ 
+         ///////////////////////////////////////////////////////////////////////////
+ 
+         struct OutputDebugWriter {
+ 
+             void operator()( std::string const&str ) {
+                 writeToDebugConsole( str );
+             }
+         };
+ 
+         ///////////////////////////////////////////////////////////////////////////
+ 
+         class FileStream : public IStream {
+             mutable std::ofstream m_ofs;
+         public:
+             FileStream( StringRef filename ) {
+                 m_ofs.open( filename.c_str() );
+                 CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << "'" );
+             }
+             ~FileStream() override = default;
+         public: // IStream
+             std::ostream& stream() const override {
+                 return m_ofs;
+             }
+         };
+ 
+         ///////////////////////////////////////////////////////////////////////////
+ 
+         class CoutStream : public IStream {
+             mutable std::ostream m_os;
+         public:
+             // Store the streambuf from cout up-front because
+             // cout may get redirected when running tests
+             CoutStream() : m_os( Catch::cout().rdbuf() ) {}
+             ~CoutStream() override = default;
+ 
+         public: // IStream
+             std::ostream& stream() const override { return m_os; }
+         };
+ 
+         ///////////////////////////////////////////////////////////////////////////
+ 
+         class DebugOutStream : public IStream {
+             std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
+             mutable std::ostream m_os;
+         public:
+             DebugOutStream()
+             :   m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
+                 m_os( m_streamBuf.get() )
+             {}
+ 
+             ~DebugOutStream() override = default;
+ 
+         public: // IStream
+             std::ostream& stream() const override { return m_os; }
+         };
+ 
+     }} // namespace anon::detail
+ 
+     ///////////////////////////////////////////////////////////////////////////
+ 
+     auto makeStream( StringRef const &filename ) -> IStream const* {
+         if( filename.empty() )
+             return new Detail::CoutStream();
+         else if( filename[0] == '%' ) {
+             if( filename == "%debug" )
+                 return new Detail::DebugOutStream();
+             else
+                 CATCH_ERROR( "Unrecognised stream: '" << filename << "'" );
+         }
+         else
+             return new Detail::FileStream( filename );
+     }
+ 
+     // This class encapsulates the idea of a pool of ostringstreams that can be reused.
+     struct StringStreams {
+         std::vector<std::unique_ptr<std::ostringstream>> m_streams;
+         std::vector<std::size_t> m_unused;
+         std::ostringstream m_referenceStream; // Used for copy state/ flags from
+ 
+         auto add() -> std::size_t {
+             if( m_unused.empty() ) {
+                 m_streams.push_back( std::unique_ptr<std::ostringstream>( new std::ostringstream ) );
+                 return m_streams.size()-1;
+             }
+             else {
+                 auto index = m_unused.back();
+                 m_unused.pop_back();
+                 return index;
+             }
+         }
+ 
+         void release( std::size_t index ) {
+             m_streams[index]->copyfmt( m_referenceStream ); // Restore initial flags and other state
+             m_unused.push_back(index);
+         }
+     };
+ 
+     ReusableStringStream::ReusableStringStream()
+     :   m_index( Singleton<StringStreams>::getMutable().add() ),
+         m_oss( Singleton<StringStreams>::getMutable().m_streams[m_index].get() )
+     {}
+ 
+     ReusableStringStream::~ReusableStringStream() {
+         static_cast<std::ostringstream*>( m_oss )->str("");
+         m_oss->clear();
+         Singleton<StringStreams>::getMutable().release( m_index );
+     }
+ 
+     auto ReusableStringStream::str() const -> std::string {
+         return static_cast<std::ostringstream*>( m_oss )->str();
+     }
+ 
+     ///////////////////////////////////////////////////////////////////////////
+ 
+ #ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
+     std::ostream& cout() { return std::cout; }
+     std::ostream& cerr() { return std::cerr; }
+     std::ostream& clog() { return std::clog; }
+ #endif
+ }
+ // end catch_stream.cpp
+ // start catch_string_manip.cpp
+ 
+ #include <algorithm>
+ #include <ostream>
+ #include <cstring>
+ #include <cctype>
+ #include <vector>
+ 
+ namespace Catch {
+ 
+     namespace {
+         char toLowerCh(char c) {
+             return static_cast<char>( std::tolower( static_cast<unsigned char>(c) ) );
+         }
+     }
+ 
+     bool startsWith( std::string const& s, std::string const& prefix ) {
+         return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
+     }
+     bool startsWith( std::string const& s, char prefix ) {
+         return !s.empty() && s[0] == prefix;
+     }
+     bool endsWith( std::string const& s, std::string const& suffix ) {
+         return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
+     }
+     bool endsWith( std::string const& s, char suffix ) {
+         return !s.empty() && s[s.size()-1] == suffix;
+     }
+     bool contains( std::string const& s, std::string const& infix ) {
+         return s.find( infix ) != std::string::npos;
+     }
+     void toLowerInPlace( std::string& s ) {
+         std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
+     }
+     std::string toLower( std::string const& s ) {
+         std::string lc = s;
+         toLowerInPlace( lc );
+         return lc;
+     }
+     std::string trim( std::string const& str ) {
+         static char const* whitespaceChars = "\n\r\t ";
+         std::string::size_type start = str.find_first_not_of( whitespaceChars );
+         std::string::size_type end = str.find_last_not_of( whitespaceChars );
+ 
+         return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
+     }
+ 
+     StringRef trim(StringRef ref) {
+         const auto is_ws = [](char c) {
+             return c == ' ' || c == '\t' || c == '\n' || c == '\r';
+         };
+         size_t real_begin = 0;
+         while (real_begin < ref.size() && is_ws(ref[real_begin])) { ++real_begin; }
+         size_t real_end = ref.size();
+         while (real_end > real_begin && is_ws(ref[real_end - 1])) { --real_end; }
+ 
+         return ref.substr(real_begin, real_end - real_begin);
+     }
+ 
+     bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
+         bool replaced = false;
+         std::size_t i = str.find( replaceThis );
+         while( i != std::string::npos ) {
+             replaced = true;
+             str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
+             if( i < str.size()-withThis.size() )
+                 i = str.find( replaceThis, i+withThis.size() );
+             else
+                 i = std::string::npos;
+         }
+         return replaced;
+     }
+ 
+     std::vector<StringRef> splitStringRef( StringRef str, char delimiter ) {
+         std::vector<StringRef> subStrings;
+         std::size_t start = 0;
+         for(std::size_t pos = 0; pos < str.size(); ++pos ) {
+             if( str[pos] == delimiter ) {
+                 if( pos - start > 1 )
+                     subStrings.push_back( str.substr( start, pos-start ) );
+                 start = pos+1;
+             }
+         }
+         if( start < str.size() )
+             subStrings.push_back( str.substr( start, str.size()-start ) );
+         return subStrings;
+     }
+ 
+     pluralise::pluralise( std::size_t count, std::string const& label )
+     :   m_count( count ),
+         m_label( label )
+     {}
+ 
+     std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
+         os << pluraliser.m_count << ' ' << pluraliser.m_label;
+         if( pluraliser.m_count != 1 )
+             os << 's';
+         return os;
+     }
+ 
+ }
+ // end catch_string_manip.cpp
+ // start catch_stringref.cpp
+ 
+ #include <algorithm>
+ #include <ostream>
+ #include <cstring>
+ #include <cstdint>
+ 
+ namespace Catch {
+     StringRef::StringRef( char const* rawChars ) noexcept
+     : StringRef( rawChars, static_cast<StringRef::size_type>(std::strlen(rawChars) ) )
+     {}
+ 
+     auto StringRef::c_str() const -> char const* {
+         CATCH_ENFORCE(isNullTerminated(), "Called StringRef::c_str() on a non-null-terminated instance");
+         return m_start;
+     }
+     auto StringRef::data() const noexcept -> char const* {
+         return m_start;
+     }
+ 
+     auto StringRef::substr( size_type start, size_type size ) const noexcept -> StringRef {
+         if (start < m_size) {
+             return StringRef(m_start + start, (std::min)(m_size - start, size));
+         } else {
+             return StringRef();
+         }
+     }
+     auto StringRef::operator == ( StringRef const& other ) const noexcept -> bool {
+         return m_size == other.m_size
+             && (std::memcmp( m_start, other.m_start, m_size ) == 0);
+     }
+ 
+     auto operator << ( std::ostream& os, StringRef const& str ) -> std::ostream& {
+         return os.write(str.data(), str.size());
+     }
+ 
+     auto operator+=( std::string& lhs, StringRef const& rhs ) -> std::string& {
+         lhs.append(rhs.data(), rhs.size());
+         return lhs;
+     }
+ 
+ } // namespace Catch
+ // end catch_stringref.cpp
+ // start catch_tag_alias.cpp
+ 
+ namespace Catch {
+     TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo): tag(_tag), lineInfo(_lineInfo) {}
+ }
+ // end catch_tag_alias.cpp
+ // start catch_tag_alias_autoregistrar.cpp
+ 
+ namespace Catch {
+ 
+     RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
+         CATCH_TRY {
+             getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
+         } CATCH_CATCH_ALL {
+             // Do not throw when constructing global objects, instead register the exception to be processed later
+             getMutableRegistryHub().registerStartupException();
+         }
+     }
+ 
+ }
+ // end catch_tag_alias_autoregistrar.cpp
+ // start catch_tag_alias_registry.cpp
+ 
+ #include <sstream>
+ 
+ namespace Catch {
+ 
+     TagAliasRegistry::~TagAliasRegistry() {}
+ 
+     TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
+         auto it = m_registry.find( alias );
+         if( it != m_registry.end() )
+             return &(it->second);
+         else
+             return nullptr;
+     }
+ 
+     std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {
+         std::string expandedTestSpec = unexpandedTestSpec;
+         for( auto const& registryKvp : m_registry ) {
+             std::size_t pos = expandedTestSpec.find( registryKvp.first );
+             if( pos != std::string::npos ) {
+                 expandedTestSpec =  expandedTestSpec.substr( 0, pos ) +
+                                     registryKvp.second.tag +
+                                     expandedTestSpec.substr( pos + registryKvp.first.size() );
+             }
+         }
+         return expandedTestSpec;
+     }
+ 
+     void TagAliasRegistry::add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) {
+         CATCH_ENFORCE( startsWith(alias, "[@") && endsWith(alias, ']'),
+                       "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo );
+ 
+         CATCH_ENFORCE( m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
+                       "error: tag alias, '" << alias << "' already registered.\n"
+                       << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
+                       << "\tRedefined at: " << lineInfo );
+     }
+ 
+     ITagAliasRegistry::~ITagAliasRegistry() {}
+ 
+     ITagAliasRegistry const& ITagAliasRegistry::get() {
+         return getRegistryHub().getTagAliasRegistry();
+     }
+ 
+ } // end namespace Catch
+ // end catch_tag_alias_registry.cpp
+ // start catch_test_case_info.cpp
+ 
+ #include <cctype>
+ #include <exception>
+ #include <algorithm>
+ #include <sstream>
+ 
+ namespace Catch {
+ 
+     namespace {
+         TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
+             if( startsWith( tag, '.' ) ||
+                 tag == "!hide" )
+                 return TestCaseInfo::IsHidden;
+             else if( tag == "!throws" )
+                 return TestCaseInfo::Throws;
+             else if( tag == "!shouldfail" )
+                 return TestCaseInfo::ShouldFail;
+             else if( tag == "!mayfail" )
+                 return TestCaseInfo::MayFail;
+             else if( tag == "!nonportable" )
+                 return TestCaseInfo::NonPortable;
+             else if( tag == "!benchmark" )
+                 return static_cast<TestCaseInfo::SpecialProperties>( TestCaseInfo::Benchmark | TestCaseInfo::IsHidden );
+             else
+                 return TestCaseInfo::None;
+         }
+         bool isReservedTag( std::string const& tag ) {
+             return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum( static_cast<unsigned char>(tag[0]) );
+         }
+         void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
+             CATCH_ENFORCE( !isReservedTag(tag),
+                           "Tag name: [" << tag << "] is not allowed.\n"
+                           << "Tag names starting with non alphanumeric characters are reserved\n"
+                           << _lineInfo );
+         }
+     }
+ 
+     TestCase makeTestCase(  ITestInvoker* _testCase,
+                             std::string const& _className,
+                             NameAndTags const& nameAndTags,
+                             SourceLineInfo const& _lineInfo )
+     {
+         bool isHidden = false;
+ 
+         // Parse out tags
+         std::vector<std::string> tags;
+         std::string desc, tag;
+         bool inTag = false;
+         for (char c : nameAndTags.tags) {
+             if( !inTag ) {
+                 if( c == '[' )
+                     inTag = true;
+                 else
+                     desc += c;
+             }
+             else {
+                 if( c == ']' ) {
+                     TestCaseInfo::SpecialProperties prop = parseSpecialTag( tag );
+                     if( ( prop & TestCaseInfo::IsHidden ) != 0 )
+                         isHidden = true;
+                     else if( prop == TestCaseInfo::None )
+                         enforceNotReservedTag( tag, _lineInfo );
+ 
+                     // Merged hide tags like `[.approvals]` should be added as
+                     // `[.][approvals]`. The `[.]` is added at later point, so
+                     // we only strip the prefix
+                     if (startsWith(tag, '.') && tag.size() > 1) {
+                         tag.erase(0, 1);
+                     }
+                     tags.push_back( tag );
+                     tag.clear();
+                     inTag = false;
+                 }
+                 else
+                     tag += c;
+             }
+         }
+         if( isHidden ) {
+             // Add all "hidden" tags to make them behave identically
+             tags.insert( tags.end(), { ".", "!hide" } );
+         }
+ 
+         TestCaseInfo info( static_cast<std::string>(nameAndTags.name), _className, desc, tags, _lineInfo );
+         return TestCase( _testCase, std::move(info) );
+     }
+ 
+     void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags ) {
+         std::sort(begin(tags), end(tags));
+         tags.erase(std::unique(begin(tags), end(tags)), end(tags));
+         testCaseInfo.lcaseTags.clear();
+ 
+         for( auto const& tag : tags ) {
+             std::string lcaseTag = toLower( tag );
+             testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>( testCaseInfo.properties | parseSpecialTag( lcaseTag ) );
+             testCaseInfo.lcaseTags.push_back( lcaseTag );
+         }
+         testCaseInfo.tags = std::move(tags);
+     }
+ 
+     TestCaseInfo::TestCaseInfo( std::string const& _name,
+                                 std::string const& _className,
+                                 std::string const& _description,
+                                 std::vector<std::string> const& _tags,
+                                 SourceLineInfo const& _lineInfo )
+     :   name( _name ),
+         className( _className ),
+         description( _description ),
+         lineInfo( _lineInfo ),
+         properties( None )
+     {
+         setTags( *this, _tags );
+     }
+ 
+     bool TestCaseInfo::isHidden() const {
+         return ( properties & IsHidden ) != 0;
+     }
+     bool TestCaseInfo::throws() const {
+         return ( properties & Throws ) != 0;
+     }
+     bool TestCaseInfo::okToFail() const {
+         return ( properties & (ShouldFail | MayFail ) ) != 0;
+     }
+     bool TestCaseInfo::expectedToFail() const {
+         return ( properties & (ShouldFail ) ) != 0;
+     }
+ 
+     std::string TestCaseInfo::tagsAsString() const {
+         std::string ret;
+         // '[' and ']' per tag
+         std::size_t full_size = 2 * tags.size();
+         for (const auto& tag : tags) {
+             full_size += tag.size();
+         }
+         ret.reserve(full_size);
+         for (const auto& tag : tags) {
+             ret.push_back('[');
+             ret.append(tag);
+             ret.push_back(']');
+         }
+ 
+         return ret;
+     }
+ 
+     TestCase::TestCase( ITestInvoker* testCase, TestCaseInfo&& info ) : TestCaseInfo( std::move(info) ), test( testCase ) {}
+ 
+     TestCase TestCase::withName( std::string const& _newName ) const {
+         TestCase other( *this );
+         other.name = _newName;
+         return other;
+     }
+ 
+     void TestCase::invoke() const {
+         test->invoke();
+     }
+ 
+     bool TestCase::operator == ( TestCase const& other ) const {
+         return  test.get() == other.test.get() &&
+                 name == other.name &&
+                 className == other.className;
+     }
+ 
+     bool TestCase::operator < ( TestCase const& other ) const {
+         return name < other.name;
+     }
+ 
+     TestCaseInfo const& TestCase::getTestCaseInfo() const
+     {
+         return *this;
+     }
+ 
+ } // end namespace Catch
+ // end catch_test_case_info.cpp
+ // start catch_test_case_registry_impl.cpp
+ 
+ #include <algorithm>
+ #include <sstream>
+ 
+ namespace Catch {
+ 
+     namespace {
+         struct TestHasher {
+             using hash_t = uint64_t;
+ 
+             explicit TestHasher( hash_t hashSuffix ):
+                 m_hashSuffix{ hashSuffix } {}
+ 
+             uint32_t operator()( TestCase const& t ) const {
+                 // FNV-1a hash with multiplication fold.
+                 const hash_t prime = 1099511628211u;
+                 hash_t hash = 14695981039346656037u;
+                 for ( const char c : t.name ) {
+                     hash ^= c;
+                     hash *= prime;
+                 }
+                 hash ^= m_hashSuffix;
+                 hash *= prime;
+                 const uint32_t low{ static_cast<uint32_t>( hash ) };
+                 const uint32_t high{ static_cast<uint32_t>( hash >> 32 ) };
+                 return low * high;
+             }
+ 
+         private:
+             hash_t m_hashSuffix;
+         };
+     } // end unnamed namespace
+ 
+     std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases ) {
+         switch( config.runOrder() ) {
+             case RunTests::InDeclarationOrder:
+                 // already in declaration order
+                 break;
+ 
+             case RunTests::InLexicographicalOrder: {
+                 std::vector<TestCase> sorted = unsortedTestCases;
+                 std::sort( sorted.begin(), sorted.end() );
+                 return sorted;
+             }
+ 
+             case RunTests::InRandomOrder: {
+                 seedRng( config );
+                 TestHasher h{ config.rngSeed() };
+ 
+                 using hashedTest = std::pair<TestHasher::hash_t, TestCase const*>;
+                 std::vector<hashedTest> indexed_tests;
+                 indexed_tests.reserve( unsortedTestCases.size() );
+ 
+                 for (auto const& testCase : unsortedTestCases) {
+                     indexed_tests.emplace_back(h(testCase), &testCase);
+                 }
+ 
+                 std::sort(indexed_tests.begin(), indexed_tests.end(),
+                           [](hashedTest const& lhs, hashedTest const& rhs) {
+                           if (lhs.first == rhs.first) {
+                               return lhs.second->name < rhs.second->name;
+                           }
+                           return lhs.first < rhs.first;
+                 });
+ 
+                 std::vector<TestCase> sorted;
+                 sorted.reserve( indexed_tests.size() );
+ 
+                 for (auto const& hashed : indexed_tests) {
+                     sorted.emplace_back(*hashed.second);
+                 }
+ 
+                 return sorted;
+             }
+         }
+         return unsortedTestCases;
+     }
+ 
+     bool isThrowSafe( TestCase const& testCase, IConfig const& config ) {
+         return !testCase.throws() || config.allowThrows();
+     }
+ 
+     bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config ) {
+         return testSpec.matches( testCase ) && isThrowSafe( testCase, config );
+     }
+ 
+     void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions ) {
+         std::set<TestCase> seenFunctions;
+         for( auto const& function : functions ) {
+             auto prev = seenFunctions.insert( function );
+             CATCH_ENFORCE( prev.second,
+                     "error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
+                     << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
+                     << "\tRedefined at " << function.getTestCaseInfo().lineInfo );
+         }
+     }
+ 
+     std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
+         std::vector<TestCase> filtered;
+         filtered.reserve( testCases.size() );
+         for (auto const& testCase : testCases) {
+             if ((!testSpec.hasFilters() && !testCase.isHidden()) ||
+                 (testSpec.hasFilters() && matchTest(testCase, testSpec, config))) {
+                 filtered.push_back(testCase);
+             }
+         }
+         return filtered;
+     }
+     std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config ) {
+         return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
+     }
+ 
+     void TestRegistry::registerTest( TestCase const& testCase ) {
+         std::string name = testCase.getTestCaseInfo().name;
+         if( name.empty() ) {
+             ReusableStringStream rss;
+             rss << "Anonymous test case " << ++m_unnamedCount;
+             return registerTest( testCase.withName( rss.str() ) );
+         }
+         m_functions.push_back( testCase );
+     }
+ 
+     std::vector<TestCase> const& TestRegistry::getAllTests() const {
+         return m_functions;
+     }
+     std::vector<TestCase> const& TestRegistry::getAllTestsSorted( IConfig const& config ) const {
+         if( m_sortedFunctions.empty() )
+             enforceNoDuplicateTestCases( m_functions );
+ 
+         if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
+             m_sortedFunctions = sortTests( config, m_functions );
+             m_currentSortOrder = config.runOrder();
+         }
+         return m_sortedFunctions;
+     }
+ 
+     ///////////////////////////////////////////////////////////////////////////
+     TestInvokerAsFunction::TestInvokerAsFunction( void(*testAsFunction)() ) noexcept : m_testAsFunction( testAsFunction ) {}
+ 
+     void TestInvokerAsFunction::invoke() const {
+         m_testAsFunction();
+     }
+ 
+     std::string extractClassName( StringRef const& classOrQualifiedMethodName ) {
+         std::string className(classOrQualifiedMethodName);
+         if( startsWith( className, '&' ) )
+         {
+             std::size_t lastColons = className.rfind( "::" );
+             std::size_t penultimateColons = className.rfind( "::", lastColons-1 );
+             if( penultimateColons == std::string::npos )
+                 penultimateColons = 1;
+             className = className.substr( penultimateColons, lastColons-penultimateColons );
+         }
+         return className;
+     }
+ 
+ } // end namespace Catch
+ // end catch_test_case_registry_impl.cpp
+ // start catch_test_case_tracker.cpp
+ 
+ #include <algorithm>
+ #include <cassert>
+ #include <stdexcept>
+ #include <memory>
+ #include <sstream>
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic push
+ #    pragma clang diagnostic ignored "-Wexit-time-destructors"
+ #endif
+ 
+ namespace Catch {
+ namespace TestCaseTracking {
+ 
+     NameAndLocation::NameAndLocation( std::string const& _name, SourceLineInfo const& _location )
+     :   name( _name ),
+         location( _location )
+     {}
+ 
+     ITracker::~ITracker() = default;
+ 
+     ITracker& TrackerContext::startRun() {
+         m_rootTracker = std::make_shared<SectionTracker>( NameAndLocation( "{root}", CATCH_INTERNAL_LINEINFO ), *this, nullptr );
+         m_currentTracker = nullptr;
+         m_runState = Executing;
+         return *m_rootTracker;
+     }
+ 
+     void TrackerContext::endRun() {
+         m_rootTracker.reset();
+         m_currentTracker = nullptr;
+         m_runState = NotStarted;
+     }
+ 
+     void TrackerContext::startCycle() {
+         m_currentTracker = m_rootTracker.get();
+         m_runState = Executing;
+     }
+     void TrackerContext::completeCycle() {
+         m_runState = CompletedCycle;
+     }
+ 
+     bool TrackerContext::completedCycle() const {
+         return m_runState == CompletedCycle;
+     }
+     ITracker& TrackerContext::currentTracker() {
+         return *m_currentTracker;
+     }
+     void TrackerContext::setCurrentTracker( ITracker* tracker ) {
+         m_currentTracker = tracker;
+     }
+ 
+     TrackerBase::TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent ):
+         ITracker(nameAndLocation),
+         m_ctx( ctx ),
+         m_parent( parent )
+     {}
+ 
+     bool TrackerBase::isComplete() const {
+         return m_runState == CompletedSuccessfully || m_runState == Failed;
+     }
+     bool TrackerBase::isSuccessfullyCompleted() const {
+         return m_runState == CompletedSuccessfully;
+     }
+     bool TrackerBase::isOpen() const {
+         return m_runState != NotStarted && !isComplete();
+     }
+     bool TrackerBase::hasChildren() const {
+         return !m_children.empty();
+     }
+ 
+     void TrackerBase::addChild( ITrackerPtr const& child ) {
+         m_children.push_back( child );
+     }
+ 
+     ITrackerPtr TrackerBase::findChild( NameAndLocation const& nameAndLocation ) {
+         auto it = std::find_if( m_children.begin(), m_children.end(),
+             [&nameAndLocation]( ITrackerPtr const& tracker ){
+                 return
+                     tracker->nameAndLocation().location == nameAndLocation.location &&
+                     tracker->nameAndLocation().name == nameAndLocation.name;
+             } );
+         return( it != m_children.end() )
+             ? *it
+             : nullptr;
+     }
+     ITracker& TrackerBase::parent() {
+         assert( m_parent ); // Should always be non-null except for root
+         return *m_parent;
+     }
+ 
+     void TrackerBase::openChild() {
+         if( m_runState != ExecutingChildren ) {
+             m_runState = ExecutingChildren;
+             if( m_parent )
+                 m_parent->openChild();
+         }
+     }
+ 
+     bool TrackerBase::isSectionTracker() const { return false; }
+     bool TrackerBase::isGeneratorTracker() const { return false; }
+ 
+     void TrackerBase::open() {
+         m_runState = Executing;
+         moveToThis();
+         if( m_parent )
+             m_parent->openChild();
+     }
+ 
+     void TrackerBase::close() {
+ 
+         // Close any still open children (e.g. generators)
+         while( &m_ctx.currentTracker() != this )
+             m_ctx.currentTracker().close();
+ 
+         switch( m_runState ) {
+             case NeedsAnotherRun:
+                 break;
+ 
+             case Executing:
+                 m_runState = CompletedSuccessfully;
+                 break;
+             case ExecutingChildren:
+                 if( std::all_of(m_children.begin(), m_children.end(), [](ITrackerPtr const& t){ return t->isComplete(); }) )
+                     m_runState = CompletedSuccessfully;
+                 break;
+ 
+             case NotStarted:
+             case CompletedSuccessfully:
+             case Failed:
+                 CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );
+ 
+             default:
+                 CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
+         }
+         moveToParent();
+         m_ctx.completeCycle();
+     }
+     void TrackerBase::fail() {
+         m_runState = Failed;
+         if( m_parent )
+             m_parent->markAsNeedingAnotherRun();
+         moveToParent();
+         m_ctx.completeCycle();
+     }
+     void TrackerBase::markAsNeedingAnotherRun() {
+         m_runState = NeedsAnotherRun;
+     }
+ 
+     void TrackerBase::moveToParent() {
+         assert( m_parent );
+         m_ctx.setCurrentTracker( m_parent );
+     }
+     void TrackerBase::moveToThis() {
+         m_ctx.setCurrentTracker( this );
+     }
+ 
+     SectionTracker::SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
+     :   TrackerBase( nameAndLocation, ctx, parent ),
+         m_trimmed_name(trim(nameAndLocation.name))
+     {
+         if( parent ) {
+             while( !parent->isSectionTracker() )
+                 parent = &parent->parent();
+ 
+             SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
+             addNextFilters( parentSection.m_filters );
+         }
+     }
+ 
+     bool SectionTracker::isComplete() const {
+         bool complete = true;
+ 
+         if (m_filters.empty()
+             || m_filters[0] == ""
+             || std::find(m_filters.begin(), m_filters.end(), m_trimmed_name) != m_filters.end()) {
+             complete = TrackerBase::isComplete();
+         }
+         return complete;
+     }
+ 
+     bool SectionTracker::isSectionTracker() const { return true; }
+ 
+     SectionTracker& SectionTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation ) {
+         std::shared_ptr<SectionTracker> section;
+ 
+         ITracker& currentTracker = ctx.currentTracker();
+         if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
+             assert( childTracker );
+             assert( childTracker->isSectionTracker() );
+             section = std::static_pointer_cast<SectionTracker>( childTracker );
+         }
+         else {
+             section = std::make_shared<SectionTracker>( nameAndLocation, ctx, &currentTracker );
+             currentTracker.addChild( section );
+         }
+         if( !ctx.completedCycle() )
+             section->tryOpen();
+         return *section;
+     }
+ 
+     void SectionTracker::tryOpen() {
+         if( !isComplete() )
+             open();
+     }
+ 
+     void SectionTracker::addInitialFilters( std::vector<std::string> const& filters ) {
+         if( !filters.empty() ) {
+             m_filters.reserve( m_filters.size() + filters.size() + 2 );
+             m_filters.emplace_back(""); // Root - should never be consulted
+             m_filters.emplace_back(""); // Test Case - not a section filter
+             m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
+         }
+     }
+     void SectionTracker::addNextFilters( std::vector<std::string> const& filters ) {
+         if( filters.size() > 1 )
+             m_filters.insert( m_filters.end(), filters.begin()+1, filters.end() );
+     }
+ 
+     std::vector<std::string> const& SectionTracker::getFilters() const {
+         return m_filters;
+     }
+ 
+     std::string const& SectionTracker::trimmedName() const {
+         return m_trimmed_name;
+     }
+ 
+ } // namespace TestCaseTracking
+ 
+ using TestCaseTracking::ITracker;
+ using TestCaseTracking::TrackerContext;
+ using TestCaseTracking::SectionTracker;
+ 
+ } // namespace Catch
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic pop
+ #endif
+ // end catch_test_case_tracker.cpp
+ // start catch_test_registry.cpp
+ 
+ namespace Catch {
+ 
+     auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker* {
+         return new(std::nothrow) TestInvokerAsFunction( testAsFunction );
+     }
+ 
+     NameAndTags::NameAndTags( StringRef const& name_ , StringRef const& tags_ ) noexcept : name( name_ ), tags( tags_ ) {}
+ 
+     AutoReg::AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept {
+         CATCH_TRY {
+             getMutableRegistryHub()
+                     .registerTest(
+                         makeTestCase(
+                             invoker,
+                             extractClassName( classOrMethod ),
+                             nameAndTags,
+                             lineInfo));
+         } CATCH_CATCH_ALL {
+             // Do not throw when constructing global objects, instead register the exception to be processed later
+             getMutableRegistryHub().registerStartupException();
+         }
+     }
+ 
+     AutoReg::~AutoReg() = default;
+ }
+ // end catch_test_registry.cpp
+ // start catch_test_spec.cpp
+ 
+ #include <algorithm>
+ #include <string>
+ #include <vector>
+ #include <memory>
+ 
+ namespace Catch {
+ 
+     TestSpec::Pattern::Pattern( std::string const& name )
+     : m_name( name )
+     {}
+ 
+     TestSpec::Pattern::~Pattern() = default;
+ 
+     std::string const& TestSpec::Pattern::name() const {
+         return m_name;
+     }
+ 
+     TestSpec::NamePattern::NamePattern( std::string const& name, std::string const& filterString )
+     : Pattern( filterString )
+     , m_wildcardPattern( toLower( name ), CaseSensitive::No )
+     {}
+ 
+     bool TestSpec::NamePattern::matches( TestCaseInfo const& testCase ) const {
+         return m_wildcardPattern.matches( testCase.name );
+     }
+ 
+     TestSpec::TagPattern::TagPattern( std::string const& tag, std::string const& filterString )
+     : Pattern( filterString )
+     , m_tag( toLower( tag ) )
+     {}
+ 
+     bool TestSpec::TagPattern::matches( TestCaseInfo const& testCase ) const {
+         return std::find(begin(testCase.lcaseTags),
+                          end(testCase.lcaseTags),
+                          m_tag) != end(testCase.lcaseTags);
+     }
+ 
+     TestSpec::ExcludedPattern::ExcludedPattern( PatternPtr const& underlyingPattern )
+     : Pattern( underlyingPattern->name() )
+     , m_underlyingPattern( underlyingPattern )
+     {}
+ 
+     bool TestSpec::ExcludedPattern::matches( TestCaseInfo const& testCase ) const {
+         return !m_underlyingPattern->matches( testCase );
+     }
+ 
+     bool TestSpec::Filter::matches( TestCaseInfo const& testCase ) const {
+         return std::all_of( m_patterns.begin(), m_patterns.end(), [&]( PatternPtr const& p ){ return p->matches( testCase ); } );
+     }
+ 
+     std::string TestSpec::Filter::name() const {
+         std::string name;
+         for( auto const& p : m_patterns )
+             name += p->name();
+         return name;
+     }
+ 
+     bool TestSpec::hasFilters() const {
+         return !m_filters.empty();
+     }
+ 
+     bool TestSpec::matches( TestCaseInfo const& testCase ) const {
+         return std::any_of( m_filters.begin(), m_filters.end(), [&]( Filter const& f ){ return f.matches( testCase ); } );
+     }
+ 
+     TestSpec::Matches TestSpec::matchesByFilter( std::vector<TestCase> const& testCases, IConfig const& config ) const
+     {
+         Matches matches( m_filters.size() );
+         std::transform( m_filters.begin(), m_filters.end(), matches.begin(), [&]( Filter const& filter ){
+             std::vector<TestCase const*> currentMatches;
+             for( auto const& test : testCases )
+                 if( isThrowSafe( test, config ) && filter.matches( test ) )
+                     currentMatches.emplace_back( &test );
+             return FilterMatch{ filter.name(), currentMatches };
+         } );
+         return matches;
+     }
+ 
+     const TestSpec::vectorStrings& TestSpec::getInvalidArgs() const{
+         return  (m_invalidArgs);
+     }
+ 
+ }
+ // end catch_test_spec.cpp
+ // start catch_test_spec_parser.cpp
+ 
+ namespace Catch {
+ 
+     TestSpecParser::TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}
+ 
+     TestSpecParser& TestSpecParser::parse( std::string const& arg ) {
+         m_mode = None;
+         m_exclusion = false;
+         m_arg = m_tagAliases->expandAliases( arg );
+         m_escapeChars.clear();
+         m_substring.reserve(m_arg.size());
+         m_patternName.reserve(m_arg.size());
+         m_realPatternPos = 0;
+ 
+         for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
+           //if visitChar fails
+            if( !visitChar( m_arg[m_pos] ) ){
+                m_testSpec.m_invalidArgs.push_back(arg);
+                break;
             }
-            if( !testCaseInfo.tags.empty() )
-                Catch::cout() << Column( testCaseInfo.tagsAsString() ).indent( 6 ) << "\n";
-        }
-
-        if( !config.hasTestFilters() )
-            Catch::cout() << pluralise( matchedTestCases.size(), "test case" ) << '\n' << std::endl;
-        else
-            Catch::cout() << pluralise( matchedTestCases.size(), "matching test case" ) << '\n' << std::endl;
-        return matchedTestCases.size();
-    }
-
-    std::size_t listTestsNamesOnly( Config const& config ) {
-        TestSpec testSpec = config.testSpec();
-        std::size_t matchedTests = 0;
-        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( auto const& testCaseInfo : matchedTestCases ) {
-            matchedTests++;
-            if( startsWith( testCaseInfo.name, '#' ) )
-               Catch::cout() << '"' << testCaseInfo.name << '"';
-            else
-               Catch::cout() << testCaseInfo.name;
-            if ( config.verbosity() >= Verbosity::High )
-                Catch::cout() << "\t@" << testCaseInfo.lineInfo;
-            Catch::cout() << std::endl;
-        }
-        return matchedTests;
-    }
-
-    void TagInfo::add( std::string const& spelling ) {
-        ++count;
-        spellings.insert( spelling );
-    }
-
-    std::string TagInfo::all() const {
-        std::string out;
-        for( auto const& spelling : spellings )
-            out += "[" + spelling + "]";
-        return out;
-    }
-
-    std::size_t listTags( Config const& config ) {
-        TestSpec testSpec = config.testSpec();
-        if( config.hasTestFilters() )
-            Catch::cout() << "Tags for matching test cases:\n";
-        else {
-            Catch::cout() << "All available tags:\n";
-        }
-
-        std::map<std::string, TagInfo> tagCounts;
-
-        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( auto const& testCase : matchedTestCases ) {
-            for( auto const& tagName : testCase.getTestCaseInfo().tags ) {
-                std::string lcaseTagName = toLower( tagName );
-                auto countIt = tagCounts.find( lcaseTagName );
-                if( countIt == tagCounts.end() )
-                    countIt = tagCounts.insert( std::make_pair( lcaseTagName, TagInfo() ) ).first;
-                countIt->second.add( tagName );
-            }
-        }
-
-        for( auto const& tagCount : tagCounts ) {
-            ReusableStringStream rss;
-            rss << "  " << std::setw(2) << tagCount.second.count << "  ";
-            auto str = rss.str();
-            auto wrapper = Column( tagCount.second.all() )
-                                                    .initialIndent( 0 )
-                                                    .indent( str.size() )
-                                                    .width( CATCH_CONFIG_CONSOLE_WIDTH-10 );
-            Catch::cout() << str << wrapper << '\n';
-        }
-        Catch::cout() << pluralise( tagCounts.size(), "tag" ) << '\n' << std::endl;
-        return tagCounts.size();
-    }
-
-    std::size_t listReporters( Config const& /*config*/ ) {
-        Catch::cout() << "Available reporters:\n";
-        IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
-        std::size_t maxNameLen = 0;
-        for( auto const& factoryKvp : factories )
-            maxNameLen = (std::max)( maxNameLen, factoryKvp.first.size() );
-
-        for( auto const& factoryKvp : factories ) {
-            Catch::cout()
-                    << Column( factoryKvp.first + ":" )
-                            .indent(2)
-                            .width( 5+maxNameLen )
-                    +  Column( factoryKvp.second->getDescription() )
-                            .initialIndent(0)
-                            .indent(2)
-                            .width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen-8 )
-                    << "\n";
-        }
-        Catch::cout() << std::endl;
-        return factories.size();
-    }
-
-    Option<std::size_t> list( Config const& config ) {
-        Option<std::size_t> listedCount;
-        if( config.listTests() )
-            listedCount = listedCount.valueOr(0) + listTests( config );
-        if( config.listTestNamesOnly() )
-            listedCount = listedCount.valueOr(0) + listTestsNamesOnly( config );
-        if( config.listTags() )
-            listedCount = listedCount.valueOr(0) + listTags( config );
-        if( config.listReporters() )
-            listedCount = listedCount.valueOr(0) + listReporters( config );
-        return listedCount;
-    }
-
-} // end namespace Catch
-// end catch_list.cpp
-// start catch_matchers.cpp
-
-namespace Catch {
-namespace Matchers {
-    namespace Impl {
-
-        std::string MatcherUntypedBase::toString() const {
-            if( m_cachedToString.empty() )
-                m_cachedToString = describe();
-            return m_cachedToString;
-        }
-
-        MatcherUntypedBase::~MatcherUntypedBase() = default;
-
-    } // namespace Impl
-} // namespace Matchers
-
-using namespace Matchers;
-using Matchers::Impl::MatcherBase;
-
-} // namespace Catch
-// end catch_matchers.cpp
-// start catch_matchers_floating.cpp
-
-// start catch_to_string.hpp
-
-#include <string>
-
-namespace Catch {
-    template <typename T>
-    std::string to_string(T const& t) {
-#if defined(CATCH_CONFIG_CPP11_TO_STRING)
-        return std::to_string(t);
-#else
-        ReusableStringStream rss;
-        rss << t;
+         endMode();
+         return *this;
+     }
+     TestSpec TestSpecParser::testSpec() {
+         addFilter();
+         return m_testSpec;
+     }
+     bool TestSpecParser::visitChar( char c ) {
+         if( (m_mode != EscapedName) && (c == '\\') ) {
+             escape();
+             addCharToPattern(c);
+             return true;
+         }else if((m_mode != EscapedName) && (c == ',') )  {
+             return separate();
+         }
+ 
+         switch( m_mode ) {
+         case None:
+             if( processNoneChar( c ) )
+                 return true;
+             break;
+         case Name:
+             processNameChar( c );
+             break;
+         case EscapedName:
+             endMode();
+             addCharToPattern(c);
+             return true;
+         default:
+         case Tag:
+         case QuotedName:
+             if( processOtherChar( c ) )
+                 return true;
+             break;
+         }
+ 
+         m_substring += c;
+         if( !isControlChar( c ) ) {
+             m_patternName += c;
+             m_realPatternPos++;
+         }
+         return true;
+     }
+     // Two of the processing methods return true to signal the caller to return
+     // without adding the given character to the current pattern strings
+     bool TestSpecParser::processNoneChar( char c ) {
+         switch( c ) {
+         case ' ':
+             return true;
+         case '~':
+             m_exclusion = true;
+             return false;
+         case '[':
+             startNewMode( Tag );
+             return false;
+         case '"':
+             startNewMode( QuotedName );
+             return false;
+         default:
+             startNewMode( Name );
+             return false;
+         }
+     }
+     void TestSpecParser::processNameChar( char c ) {
+         if( c == '[' ) {
+             if( m_substring == "exclude:" )
+                 m_exclusion = true;
+             else
+                 endMode();
+             startNewMode( Tag );
+         }
+     }
+     bool TestSpecParser::processOtherChar( char c ) {
+         if( !isControlChar( c ) )
+             return false;
+         m_substring += c;
+         endMode();
+         return true;
+     }
+     void TestSpecParser::startNewMode( Mode mode ) {
+         m_mode = mode;
+     }
+     void TestSpecParser::endMode() {
+         switch( m_mode ) {
+         case Name:
+         case QuotedName:
+             return addNamePattern();
+         case Tag:
+             return addTagPattern();
+         case EscapedName:
+             revertBackToLastMode();
+             return;
+         case None:
+         default:
+             return startNewMode( None );
+         }
+     }
+     void TestSpecParser::escape() {
+         saveLastMode();
+         m_mode = EscapedName;
+         m_escapeChars.push_back(m_realPatternPos);
+     }
+     bool TestSpecParser::isControlChar( char c ) const {
+         switch( m_mode ) {
+             default:
+                 return false;
+             case None:
+                 return c == '~';
+             case Name:
+                 return c == '[';
+             case EscapedName:
+                 return true;
+             case QuotedName:
+                 return c == '"';
+             case Tag:
+                 return c == '[' || c == ']';
+         }
+     }
+ 
+     void TestSpecParser::addFilter() {
+         if( !m_currentFilter.m_patterns.empty() ) {
+             m_testSpec.m_filters.push_back( m_currentFilter );
+             m_currentFilter = TestSpec::Filter();
+         }
+     }
+ 
+     void TestSpecParser::saveLastMode() {
+       lastMode = m_mode;
+     }
+ 
+     void TestSpecParser::revertBackToLastMode() {
+       m_mode = lastMode;
+     }
+ 
+     bool TestSpecParser::separate() {
+       if( (m_mode==QuotedName) || (m_mode==Tag) ){
+          //invalid argument, signal failure to previous scope.
+          m_mode = None;
+          m_pos = m_arg.size();
+          m_substring.clear();
+          m_patternName.clear();
+          m_realPatternPos = 0;
+          return false;
+       }
+       endMode();
+       addFilter();
+       return true; //success
+     }
+ 
+     std::string TestSpecParser::preprocessPattern() {
+         std::string token = m_patternName;
+         for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
+             token = token.substr(0, m_escapeChars[i] - i) + token.substr(m_escapeChars[i] - i + 1);
+         m_escapeChars.clear();
+         if (startsWith(token, "exclude:")) {
+             m_exclusion = true;
+             token = token.substr(8);
+         }
+ 
+         m_patternName.clear();
+         m_realPatternPos = 0;
+ 
+         return token;
+     }
+ 
+     void TestSpecParser::addNamePattern() {
+         auto token = preprocessPattern();
+ 
+         if (!token.empty()) {
+             TestSpec::PatternPtr pattern = std::make_shared<TestSpec::NamePattern>(token, m_substring);
+             if (m_exclusion)
+                 pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+             m_currentFilter.m_patterns.push_back(pattern);
+         }
+         m_substring.clear();
+         m_exclusion = false;
+         m_mode = None;
+     }
+ 
+     void TestSpecParser::addTagPattern() {
+         auto token = preprocessPattern();
+ 
+         if (!token.empty()) {
+             // If the tag pattern is the "hide and tag" shorthand (e.g. [.foo])
+             // we have to create a separate hide tag and shorten the real one
+             if (token.size() > 1 && token[0] == '.') {
+                 token.erase(token.begin());
+                 TestSpec::PatternPtr pattern = std::make_shared<TestSpec::TagPattern>(".", m_substring);
+                 if (m_exclusion) {
+                     pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+                 }
+                 m_currentFilter.m_patterns.push_back(pattern);
+             }
+ 
+             TestSpec::PatternPtr pattern = std::make_shared<TestSpec::TagPattern>(token, m_substring);
+ 
+             if (m_exclusion) {
+                 pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+             }
+             m_currentFilter.m_patterns.push_back(pattern);
+         }
+         m_substring.clear();
+         m_exclusion = false;
+         m_mode = None;
+     }
+ 
+     TestSpec parseTestSpec( std::string const& arg ) {
+         return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
+     }
+ 
+ } // namespace Catch
+ // end catch_test_spec_parser.cpp
+ // start catch_timer.cpp
+ 
+ #include <chrono>
+ 
+ static const uint64_t nanosecondsInSecond = 1000000000;
+ 
+ namespace Catch {
+ 
+     auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
+         return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
+     }
+ 
+     namespace {
+         auto estimateClockResolution() -> uint64_t {
+             uint64_t sum = 0;
+             static const uint64_t iterations = 1000000;
+ 
+             auto startTime = getCurrentNanosecondsSinceEpoch();
+ 
+             for( std::size_t i = 0; i < iterations; ++i ) {
+ 
+                 uint64_t ticks;
+                 uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
+                 do {
+                     ticks = getCurrentNanosecondsSinceEpoch();
+                 } while( ticks == baseTicks );
+ 
+                 auto delta = ticks - baseTicks;
+                 sum += delta;
+ 
+                 // If we have been calibrating for over 3 seconds -- the clock
+                 // is terrible and we should move on.
+                 // TBD: How to signal that the measured resolution is probably wrong?
+                 if (ticks > startTime + 3 * nanosecondsInSecond) {
+                     return sum / ( i + 1u );
+                 }
+             }
+ 
+             // We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
+             // - and potentially do more iterations if there's a high variance.
+             return sum/iterations;
+         }
+     }
+     auto getEstimatedClockResolution() -> uint64_t {
+         static auto s_resolution = estimateClockResolution();
+         return s_resolution;
+     }
+ 
+     void Timer::start() {
+        m_nanoseconds = getCurrentNanosecondsSinceEpoch();
+     }
+     auto Timer::getElapsedNanoseconds() const -> uint64_t {
+         return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
+     }
+     auto Timer::getElapsedMicroseconds() const -> uint64_t {
+         return getElapsedNanoseconds()/1000;
+     }
+     auto Timer::getElapsedMilliseconds() const -> unsigned int {
+         return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
+     }
+     auto Timer::getElapsedSeconds() const -> double {
+         return getElapsedMicroseconds()/1000000.0;
+     }
+ 
+ } // namespace Catch
+ // end catch_timer.cpp
+ // start catch_tostring.cpp
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic push
+ #    pragma clang diagnostic ignored "-Wexit-time-destructors"
+ #    pragma clang diagnostic ignored "-Wglobal-constructors"
+ #endif
+ 
+ // Enable specific decls locally
+ #if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
+ #define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+ #endif
+ 
+ #include <cmath>
+ #include <iomanip>
+ 
+ namespace Catch {
+ 
+ namespace Detail {
+ 
+     const std::string unprintableString = "{?}";
+ 
+     namespace {
+         const int hexThreshold = 255;
+ 
+         struct Endianness {
+             enum Arch { Big, Little };
+ 
+             static Arch which() {
+                 int one = 1;
+                 // If the lowest byte we read is non-zero, we can assume
+                 // that little endian format is used.
+                 auto value = *reinterpret_cast<char*>(&one);
+                 return value ? Little : Big;
+             }
+         };
+     }
+ 
+     std::string rawMemoryToString( const void *object, std::size_t size ) {
+         // Reverse order for little endian architectures
+         int i = 0, end = static_cast<int>( size ), inc = 1;
+         if( Endianness::which() == Endianness::Little ) {
+             i = end-1;
+             end = inc = -1;
+         }
+ 
+         unsigned char const *bytes = static_cast<unsigned char const *>(object);
+         ReusableStringStream rss;
+         rss << "0x" << std::setfill('0') << std::hex;
+         for( ; i != end; i += inc )
+              rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
         return rss.str();
-#endif
-    }
-} // end namespace Catch
-
-// end catch_to_string.hpp
-#include <cstdlib>
-#include <cstdint>
-#include <cstring>
-#include <stdexcept>
-
-namespace Catch {
-namespace Matchers {
-namespace Floating {
-enum class FloatingPointKind : uint8_t {
-    Float,
-    Double
-};
-}
-}
-}
-
-namespace {
-
-template <typename T>
-struct Converter;
-
-template <>
-struct Converter<float> {
-    static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
-    Converter(float f) {
-        std::memcpy(&i, &f, sizeof(f));
-    }
-    int32_t i;
-};
-
-template <>
-struct Converter<double> {
-    static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
-    Converter(double d) {
-        std::memcpy(&i, &d, sizeof(d));
-    }
-    int64_t i;
-};
-
-template <typename T>
-auto convert(T t) -> Converter<T> {
-    return Converter<T>(t);
-}
-
-template <typename FP>
-bool almostEqualUlps(FP lhs, FP rhs, int maxUlpDiff) {
-    // Comparison with NaN should always be false.
-    // This way we can rule it out before getting into the ugly details
-    if (std::isnan(lhs) || std::isnan(rhs)) {
-        return false;
-    }
-
-    auto lc = convert(lhs);
-    auto rc = convert(rhs);
-
-    if ((lc.i < 0) != (rc.i < 0)) {
-        // Potentially we can have +0 and -0
-        return lhs == rhs;
-    }
-
-    auto ulpDiff = std::abs(lc.i - rc.i);
-    return ulpDiff <= maxUlpDiff;
-}
-
-}
-
-namespace Catch {
-namespace Matchers {
-namespace Floating {
-    WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
-        :m_target{ target }, m_margin{ margin } {
-        if (m_margin < 0) {
-            throw std::domain_error("Allowed margin difference has to be >= 0");
-        }
-    }
-
-    // Performs equivalent check of std::fabs(lhs - rhs) <= margin
-    // But without the subtraction to allow for INFINITY in comparison
-    bool WithinAbsMatcher::match(double const& matchee) const {
-        return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
-    }
-
-    std::string WithinAbsMatcher::describe() const {
-        return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
-    }
-
-    WithinUlpsMatcher::WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType)
-        :m_target{ target }, m_ulps{ ulps }, m_type{ baseType } {
-        if (m_ulps < 0) {
-            throw std::domain_error("Allowed ulp difference has to be >= 0");
-        }
-    }
-
-    bool WithinUlpsMatcher::match(double const& matchee) const {
-        switch (m_type) {
-        case FloatingPointKind::Float:
-            return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
-        case FloatingPointKind::Double:
-            return almostEqualUlps<double>(matchee, m_target, m_ulps);
-        default:
-            throw std::domain_error("Unknown FloatingPointKind value");
-        }
-    }
-
-    std::string WithinUlpsMatcher::describe() const {
-        return "is within " + Catch::to_string(m_ulps) + " ULPs of " + ::Catch::Detail::stringify(m_target) + ((m_type == FloatingPointKind::Float)? "f" : "");
-    }
-
-}// namespace Floating
-
-Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff) {
-    return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Double);
-}
-
-Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff) {
-    return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Float);
-}
-
-Floating::WithinAbsMatcher WithinAbs(double target, double margin) {
-    return Floating::WithinAbsMatcher(target, margin);
-}
-
-} // namespace Matchers
-} // namespace Catch
-
-// end catch_matchers_floating.cpp
-// start catch_matchers_generic.cpp
-
-std::string Catch::Matchers::Generic::Detail::finalizeDescription(const std::string& desc) {
-    if (desc.empty()) {
-        return "matches undescribed predicate";
-    } else {
-        return "matches predicate: \"" + desc + '"';
-    }
-}
-// end catch_matchers_generic.cpp
-// start catch_matchers_string.cpp
-
-#include <regex>
-
-namespace Catch {
-namespace Matchers {
-
-    namespace StdString {
-
-        CasedString::CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
-        :   m_caseSensitivity( caseSensitivity ),
-            m_str( adjustString( str ) )
-        {}
-        std::string CasedString::adjustString( std::string const& str ) const {
-            return m_caseSensitivity == CaseSensitive::No
-                   ? toLower( str )
-                   : str;
-        }
-        std::string CasedString::caseSensitivitySuffix() const {
-            return m_caseSensitivity == CaseSensitive::No
-                   ? " (case insensitive)"
-                   : std::string();
-        }
-
-        StringMatcherBase::StringMatcherBase( std::string const& operation, CasedString const& comparator )
-        : m_comparator( comparator ),
-          m_operation( operation ) {
-        }
-
-        std::string StringMatcherBase::describe() const {
-            std::string description;
-            description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
-                                        m_comparator.caseSensitivitySuffix().size());
-            description += m_operation;
-            description += ": \"";
-            description += m_comparator.m_str;
-            description += "\"";
-            description += m_comparator.caseSensitivitySuffix();
-            return description;
-        }
-
-        EqualsMatcher::EqualsMatcher( CasedString const& comparator ) : StringMatcherBase( "equals", comparator ) {}
-
-        bool EqualsMatcher::match( std::string const& source ) const {
-            return m_comparator.adjustString( source ) == m_comparator.m_str;
-        }
-
-        ContainsMatcher::ContainsMatcher( CasedString const& comparator ) : StringMatcherBase( "contains", comparator ) {}
-
-        bool ContainsMatcher::match( std::string const& source ) const {
-            return contains( m_comparator.adjustString( source ), m_comparator.m_str );
-        }
-
-        StartsWithMatcher::StartsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "starts with", comparator ) {}
-
-        bool StartsWithMatcher::match( std::string const& source ) const {
-            return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
-        }
-
-        EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}
-
-        bool EndsWithMatcher::match( std::string const& source ) const {
-            return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
-        }
-
-        RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity): m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}
-
-        bool RegexMatcher::match(std::string const& matchee) const {
-            auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
-            if (m_caseSensitivity == CaseSensitive::Choice::No) {
-                flags |= std::regex::icase;
-            }
-            auto reg = std::regex(m_regex, flags);
-            return std::regex_match(matchee, reg);
-        }
-
-        std::string RegexMatcher::describe() const {
-            return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes)? " case sensitively" : " case insensitively");
-        }
-
-    } // namespace StdString
-
-    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-
-    StdString::RegexMatcher Matches(std::string const& regex, CaseSensitive::Choice caseSensitivity) {
-        return StdString::RegexMatcher(regex, caseSensitivity);
-    }
-
-} // namespace Matchers
-} // namespace Catch
-// end catch_matchers_string.cpp
-// start catch_message.cpp
-
-// start catch_uncaught_exceptions.h
-
-namespace Catch {
-    bool uncaught_exceptions();
-} // end namespace Catch
-
-// end catch_uncaught_exceptions.h
-namespace Catch {
-
-    MessageInfo::MessageInfo(   std::string const& _macroName,
-                                SourceLineInfo const& _lineInfo,
-                                ResultWas::OfType _type )
-    :   macroName( _macroName ),
-        lineInfo( _lineInfo ),
-        type( _type ),
-        sequence( ++globalCount )
-    {}
-
-    bool MessageInfo::operator==( MessageInfo const& other ) const {
-        return sequence == other.sequence;
-    }
-
-    bool MessageInfo::operator<( MessageInfo const& other ) const {
-        return sequence < other.sequence;
-    }
-
-    // This may need protecting if threading support is added
-    unsigned int MessageInfo::globalCount = 0;
-
-    ////////////////////////////////////////////////////////////////////////////
-
-    Catch::MessageBuilder::MessageBuilder( std::string const& macroName,
-                                           SourceLineInfo const& lineInfo,
-                                           ResultWas::OfType type )
-        :m_info(macroName, lineInfo, type) {}
-
-    ////////////////////////////////////////////////////////////////////////////
-
-    ScopedMessage::ScopedMessage( MessageBuilder const& builder )
-    : m_info( builder.m_info )
-    {
-        m_info.message = builder.m_stream.str();
-        getResultCapture().pushScopedMessage( m_info );
-    }
-
-    ScopedMessage::~ScopedMessage() {
-        if ( !uncaught_exceptions() ){
-            getResultCapture().popScopedMessage(m_info);
-        }
-    }
-} // end namespace Catch
-// end catch_message.cpp
-// start catch_output_redirect.cpp
-
-// start catch_output_redirect.h
-#ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
-#define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
-
-#include <cstdio>
-#include <iosfwd>
-#include <string>
-
-namespace Catch {
-
-    class RedirectedStream {
-        std::ostream& m_originalStream;
-        std::ostream& m_redirectionStream;
-        std::streambuf* m_prevBuf;
-
-    public:
-        RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream );
-        ~RedirectedStream();
-    };
-
-    class RedirectedStdOut {
-        ReusableStringStream m_rss;
-        RedirectedStream m_cout;
-    public:
-        RedirectedStdOut();
-        auto str() const -> std::string;
-    };
-
-    // StdErr has two constituent streams in C++, std::cerr and std::clog
-    // This means that we need to redirect 2 streams into 1 to keep proper
-    // order of writes
-    class RedirectedStdErr {
-        ReusableStringStream m_rss;
-        RedirectedStream m_cerr;
-        RedirectedStream m_clog;
-    public:
-        RedirectedStdErr();
-        auto str() const -> std::string;
-    };
-
-    // Windows's implementation of std::tmpfile is terrible (it tries
-    // to create a file inside system folder, thus requiring elevated
-    // privileges for the binary), so we have to use tmpnam(_s) and
-    // create the file ourselves there.
-    class TempFile {
-    public:
-        TempFile(TempFile const&) = delete;
-        TempFile& operator=(TempFile const&) = delete;
-        TempFile(TempFile&&) = delete;
-        TempFile& operator=(TempFile&&) = delete;
-
-        TempFile();
-        ~TempFile();
-
-        std::FILE* getFile();
-        std::string getContents();
-
-    private:
-        std::FILE* m_file = nullptr;
-    #if defined(_MSC_VER)
-        char m_buffer[L_tmpnam] = { 0 };
-    #endif
-    };
-
-    class OutputRedirect {
-    public:
-        OutputRedirect(OutputRedirect const&) = delete;
-        OutputRedirect& operator=(OutputRedirect const&) = delete;
-        OutputRedirect(OutputRedirect&&) = delete;
-        OutputRedirect& operator=(OutputRedirect&&) = delete;
-
-        OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
-        ~OutputRedirect();
-
-    private:
-        int m_originalStdout = -1;
-        int m_originalStderr = -1;
-        TempFile m_stdoutFile;
-        TempFile m_stderrFile;
-        std::string& m_stdoutDest;
-        std::string& m_stderrDest;
-    };
-
-} // end namespace Catch
-
-#endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
-// end catch_output_redirect.h
-#include <cstdio>
-#include <cstring>
-#include <fstream>
-#include <sstream>
-#include <stdexcept>
-
-#if defined(_MSC_VER)
-#include <io.h>      //_dup and _dup2
-#define dup _dup
-#define dup2 _dup2
-#define fileno _fileno
-#else
-#include <unistd.h>  // dup and dup2
-#endif
-
-namespace Catch {
-
-    RedirectedStream::RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream )
-    :   m_originalStream( originalStream ),
-        m_redirectionStream( redirectionStream ),
-        m_prevBuf( m_originalStream.rdbuf() )
-    {
-        m_originalStream.rdbuf( m_redirectionStream.rdbuf() );
-    }
-
-    RedirectedStream::~RedirectedStream() {
-        m_originalStream.rdbuf( m_prevBuf );
-    }
-
-    RedirectedStdOut::RedirectedStdOut() : m_cout( Catch::cout(), m_rss.get() ) {}
-    auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }
-
-    RedirectedStdErr::RedirectedStdErr()
-    :   m_cerr( Catch::cerr(), m_rss.get() ),
-        m_clog( Catch::clog(), m_rss.get() )
-    {}
-    auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }
-
-#if defined(_MSC_VER)
-    TempFile::TempFile() {
-        if (tmpnam_s(m_buffer)) {
-            throw std::runtime_error("Could not get a temp filename");
-        }
-        if (fopen_s(&m_file, m_buffer, "w")) {
-            char buffer[100];
-            if (strerror_s(buffer, errno)) {
-                throw std::runtime_error("Could not translate errno to string");
-            }
-            throw std::runtime_error("Could not open the temp file: " + std::string(m_buffer) + buffer);
-        }
-    }
-#else
-    TempFile::TempFile() {
-        m_file = std::tmpfile();
-        if (!m_file) {
-            throw std::runtime_error("Could not create a temp file.");
-        }
-    }
-
-#endif
-
-    TempFile::~TempFile() {
-         // TBD: What to do about errors here?
-         std::fclose(m_file);
-         // We manually create the file on Windows only, on Linux
-         // it will be autodeleted
-#if defined(_MSC_VER)
-         std::remove(m_buffer);
-#endif
-    }
-
-    FILE* TempFile::getFile() {
-        return m_file;
-    }
-
-    std::string TempFile::getContents() {
-        std::stringstream sstr;
-        char buffer[100] = {};
-        std::rewind(m_file);
-        while (std::fgets(buffer, sizeof(buffer), m_file)) {
-            sstr << buffer;
-        }
-        return sstr.str();
-    }
-
-    OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
-        m_originalStdout(dup(1)),
-        m_originalStderr(dup(2)),
-        m_stdoutDest(stdout_dest),
-        m_stderrDest(stderr_dest) {
-        dup2(fileno(m_stdoutFile.getFile()), 1);
-        dup2(fileno(m_stderrFile.getFile()), 2);
-    }
-
-    OutputRedirect::~OutputRedirect() {
-        Catch::cout() << std::flush;
-        fflush(stdout);
-        // Since we support overriding these streams, we flush cerr
-        // even though std::cerr is unbuffered
-        Catch::cerr() << std::flush;
-        Catch::clog() << std::flush;
-        fflush(stderr);
-
-        dup2(m_originalStdout, 1);
-        dup2(m_originalStderr, 2);
-
-        m_stdoutDest += m_stdoutFile.getContents();
-        m_stderrDest += m_stderrFile.getContents();
-    }
-
-} // namespace Catch
-
-#if defined(_MSC_VER)
-#undef dup
-#undef dup2
-#undef fileno
-#endif
-// end catch_output_redirect.cpp
-// start catch_random_number_generator.cpp
-
-// start catch_random_number_generator.h
-
-#include <algorithm>
-
-namespace Catch {
-
-    struct IConfig;
-
-    void seedRng( IConfig const& config );
-
-    unsigned int rngSeed();
-
-    struct RandomNumberGenerator {
-        using result_type = unsigned int;
-
-        static constexpr result_type (min)() { return 0; }
-        static constexpr result_type (max)() { return 1000000; }
-
-        result_type operator()( result_type n ) const;
-        result_type operator()() const;
-
-        template<typename V>
-        static void shuffle( V& vector ) {
-            RandomNumberGenerator rng;
-            std::shuffle( vector.begin(), vector.end(), rng );
-        }
-    };
-
-}
-
-// end catch_random_number_generator.h
-#include <cstdlib>
-
-namespace Catch {
-
-    void seedRng( IConfig const& config ) {
-        if( config.rngSeed() != 0 )
-            std::srand( config.rngSeed() );
-    }
-    unsigned int rngSeed() {
-        return getCurrentContext().getConfig()->rngSeed();
-    }
-
-    RandomNumberGenerator::result_type RandomNumberGenerator::operator()( result_type n ) const {
-        return std::rand() % n;
-    }
-    RandomNumberGenerator::result_type RandomNumberGenerator::operator()() const {
-        return std::rand() % (max)();
-    }
-
-}
-// end catch_random_number_generator.cpp
-// start catch_registry_hub.cpp
-
-// start catch_test_case_registry_impl.h
-
-#include <vector>
-#include <set>
-#include <algorithm>
-#include <ios>
-
-namespace Catch {
-
-    class TestCase;
-    struct IConfig;
-
-    std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases );
-    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
-
-    void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions );
-
-    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
-    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
-
-    class TestRegistry : public ITestCaseRegistry {
-    public:
-        virtual ~TestRegistry() = default;
-
-        virtual void registerTest( TestCase const& testCase );
-
-        std::vector<TestCase> const& getAllTests() const override;
-        std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const override;
-
-    private:
-        std::vector<TestCase> m_functions;
-        mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
-        mutable std::vector<TestCase> m_sortedFunctions;
-        std::size_t m_unnamedCount = 0;
-        std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
-    };
-
-    ///////////////////////////////////////////////////////////////////////////
-
-    class TestInvokerAsFunction : public ITestInvoker {
-        void(*m_testAsFunction)();
-    public:
-        TestInvokerAsFunction( void(*testAsFunction)() ) noexcept;
-
-        void invoke() const override;
-    };
-
-    std::string extractClassName( StringRef const& classOrQualifiedMethodName );
-
-    ///////////////////////////////////////////////////////////////////////////
-
-} // end namespace Catch
-
-// end catch_test_case_registry_impl.h
-// start catch_reporter_registry.h
-
-#include <map>
-
-namespace Catch {
-
-    class ReporterRegistry : public IReporterRegistry {
-
-    public:
-
-        ~ReporterRegistry() override;
-
-        IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const override;
-
-        void registerReporter( std::string const& name, IReporterFactoryPtr const& factory );
-        void registerListener( IReporterFactoryPtr const& factory );
-
-        FactoryMap const& getFactories() const override;
-        Listeners const& getListeners() const override;
-
-    private:
-        FactoryMap m_factories;
-        Listeners m_listeners;
-    };
-}
-
-// end catch_reporter_registry.h
-// start catch_tag_alias_registry.h
-
-// start catch_tag_alias.h
-
-#include <string>
-
-namespace Catch {
-
-    struct TagAlias {
-        TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);
-
-        std::string tag;
-        SourceLineInfo lineInfo;
-    };
-
-} // end namespace Catch
-
-// end catch_tag_alias.h
-#include <map>
-
-namespace Catch {
-
-    class TagAliasRegistry : public ITagAliasRegistry {
-    public:
-        ~TagAliasRegistry() override;
-        TagAlias const* find( std::string const& alias ) const override;
-        std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
-        void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );
-
-    private:
-        std::map<std::string, TagAlias> m_registry;
-    };
-
-} // end namespace Catch
-
-// end catch_tag_alias_registry.h
-// start catch_startup_exception_registry.h
-
-#include <vector>
-#include <exception>
-
-namespace Catch {
-
-    class StartupExceptionRegistry {
-    public:
-        void add(std::exception_ptr const& exception) noexcept;
-        std::vector<std::exception_ptr> const& getExceptions() const noexcept;
-    private:
-        std::vector<std::exception_ptr> m_exceptions;
-    };
-
-} // end namespace Catch
-
-// end catch_startup_exception_registry.h
-namespace Catch {
-
-    namespace {
-
-        class RegistryHub : public IRegistryHub, public IMutableRegistryHub,
-                            private NonCopyable {
-
-        public: // IRegistryHub
-            RegistryHub() = default;
-            IReporterRegistry const& getReporterRegistry() const override {
-                return m_reporterRegistry;
-            }
-            ITestCaseRegistry const& getTestCaseRegistry() const override {
-                return m_testCaseRegistry;
-            }
-            IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() override {
-                return m_exceptionTranslatorRegistry;
-            }
-            ITagAliasRegistry const& getTagAliasRegistry() const override {
-                return m_tagAliasRegistry;
-            }
-            StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
-                return m_exceptionRegistry;
-            }
-
-        public: // IMutableRegistryHub
-            void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) override {
-                m_reporterRegistry.registerReporter( name, factory );
-            }
-            void registerListener( IReporterFactoryPtr const& factory ) override {
-                m_reporterRegistry.registerListener( factory );
-            }
-            void registerTest( TestCase const& testInfo ) override {
-                m_testCaseRegistry.registerTest( testInfo );
-            }
-            void registerTranslator( const IExceptionTranslator* translator ) override {
-                m_exceptionTranslatorRegistry.registerTranslator( translator );
-            }
-            void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) override {
-                m_tagAliasRegistry.add( alias, tag, lineInfo );
-            }
-            void registerStartupException() noexcept override {
-                m_exceptionRegistry.add(std::current_exception());
-            }
-
-        private:
-            TestRegistry m_testCaseRegistry;
-            ReporterRegistry m_reporterRegistry;
-            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
-            TagAliasRegistry m_tagAliasRegistry;
-            StartupExceptionRegistry m_exceptionRegistry;
-        };
-
-        // Single, global, instance
-        RegistryHub*& getTheRegistryHub() {
-            static RegistryHub* theRegistryHub = nullptr;
-            if( !theRegistryHub )
-                theRegistryHub = new RegistryHub();
-            return theRegistryHub;
-        }
-    }
-
-    IRegistryHub& getRegistryHub() {
-        return *getTheRegistryHub();
-    }
-    IMutableRegistryHub& getMutableRegistryHub() {
-        return *getTheRegistryHub();
-    }
-    void cleanUp() {
-        delete getTheRegistryHub();
-        getTheRegistryHub() = nullptr;
-        cleanUpContext();
-        ReusableStringStream::cleanup();
-    }
-    std::string translateActiveException() {
-        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
-    }
-
-} // end namespace Catch
-// end catch_registry_hub.cpp
-// start catch_reporter_registry.cpp
-
-namespace Catch {
-
-    ReporterRegistry::~ReporterRegistry() = default;
-
-    IStreamingReporterPtr ReporterRegistry::create( std::string const& name, IConfigPtr const& config ) const {
-        auto it =  m_factories.find( name );
-        if( it == m_factories.end() )
-            return nullptr;
-        return it->second->create( ReporterConfig( config ) );
-    }
-
-    void ReporterRegistry::registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) {
-        m_factories.emplace(name, factory);
-    }
-    void ReporterRegistry::registerListener( IReporterFactoryPtr const& factory ) {
-        m_listeners.push_back( factory );
-    }
-
-    IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
-        return m_factories;
-    }
-    IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
-        return m_listeners;
-    }
-
-}
-// end catch_reporter_registry.cpp
-// start catch_result_type.cpp
-
-namespace Catch {
-
-    bool isOk( ResultWas::OfType resultType ) {
-        return ( resultType & ResultWas::FailureBit ) == 0;
-    }
-    bool isJustInfo( int flags ) {
-        return flags == ResultWas::Info;
-    }
-
-    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
-        return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
-    }
-
-    bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
-    bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }
-
-} // end namespace Catch
-// end catch_result_type.cpp
-// start catch_run_context.cpp
-
-#include <cassert>
-#include <algorithm>
-#include <sstream>
-
-namespace Catch {
-
-    RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
-    :   m_runInfo(_config->name()),
-        m_context(getCurrentMutableContext()),
-        m_config(_config),
-        m_reporter(std::move(reporter)),
-        m_lastAssertionInfo{ StringRef(), SourceLineInfo("",0), StringRef(), ResultDisposition::Normal },
-        m_includeSuccessfulResults( m_config->includeSuccessfulResults() )
-    {
-        m_context.setRunner(this);
-        m_context.setConfig(m_config);
-        m_context.setResultCapture(this);
-        m_reporter->testRunStarting(m_runInfo);
-    }
-
-    RunContext::~RunContext() {
-        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
-    }
-
-    void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
-        m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
-    }
-
-    void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
-        m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
-    }
-
-    Totals RunContext::runTest(TestCase const& testCase) {
-        Totals prevTotals = m_totals;
-
-        std::string redirectedCout;
-        std::string redirectedCerr;
-
-        auto const& testInfo = testCase.getTestCaseInfo();
-
-        m_reporter->testCaseStarting(testInfo);
-
-        m_activeTestCase = &testCase;
-
-        ITracker& rootTracker = m_trackerContext.startRun();
-        assert(rootTracker.isSectionTracker());
-        static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
-        do {
-            m_trackerContext.startCycle();
-            m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
-            runCurrentTest(redirectedCout, redirectedCerr);
-        } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());
-
-        Totals deltaTotals = m_totals.delta(prevTotals);
-        if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
-            deltaTotals.assertions.failed++;
-            deltaTotals.testCases.passed--;
-            deltaTotals.testCases.failed++;
-        }
-        m_totals.testCases += deltaTotals.testCases;
-        m_reporter->testCaseEnded(TestCaseStats(testInfo,
-                                  deltaTotals,
-                                  redirectedCout,
-                                  redirectedCerr,
-                                  aborting()));
-
-        m_activeTestCase = nullptr;
-        m_testCaseTracker = nullptr;
-
-        return deltaTotals;
-    }
-
-    IConfigPtr RunContext::config() const {
-        return m_config;
-    }
-
-    IStreamingReporter& RunContext::reporter() const {
-        return *m_reporter;
-    }
-
-    void RunContext::assertionEnded(AssertionResult const & result) {
-        if (result.getResultType() == ResultWas::Ok) {
-            m_totals.assertions.passed++;
-            m_lastAssertionPassed = true;
-        } else if (!result.isOk()) {
-            m_lastAssertionPassed = false;
-            if( m_activeTestCase->getTestCaseInfo().okToFail() )
-                m_totals.assertions.failedButOk++;
-            else
-                m_totals.assertions.failed++;
-        }
-        else {
-            m_lastAssertionPassed = true;
-        }
-
-        // We have no use for the return value (whether messages should be cleared), because messages were made scoped
-        // and should be let to clear themselves out.
-        static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));
-
-        // Reset working state
-        resetAssertionInfo();
-        m_lastResult = result;
-    }
-    void RunContext::resetAssertionInfo() {
-        m_lastAssertionInfo.macroName = StringRef();
-        m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
-    }
-
-    bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
-        ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
-        if (!sectionTracker.isOpen())
-            return false;
-        m_activeSections.push_back(&sectionTracker);
-
-        m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
-
-        m_reporter->sectionStarting(sectionInfo);
-
-        assertions = m_totals.assertions;
-
-        return true;
-    }
-
-    bool RunContext::testForMissingAssertions(Counts& assertions) {
-        if (assertions.total() != 0)
-            return false;
-        if (!m_config->warnAboutMissingAssertions())
-            return false;
-        if (m_trackerContext.currentTracker().hasChildren())
-            return false;
-        m_totals.assertions.failed++;
-        assertions.failed++;
-        return true;
-    }
-
-    void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
-        Counts assertions = m_totals.assertions - endInfo.prevAssertions;
-        bool missingAssertions = testForMissingAssertions(assertions);
-
-        if (!m_activeSections.empty()) {
-            m_activeSections.back()->close();
-            m_activeSections.pop_back();
-        }
-
-        m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
-        m_messages.clear();
-    }
-
-    void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
-        if (m_unfinishedSections.empty())
-            m_activeSections.back()->fail();
-        else
-            m_activeSections.back()->close();
-        m_activeSections.pop_back();
-
-        m_unfinishedSections.push_back(endInfo);
-    }
-    void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
-        m_reporter->benchmarkStarting( info );
-    }
-    void RunContext::benchmarkEnded( BenchmarkStats const& stats ) {
-        m_reporter->benchmarkEnded( stats );
-    }
-
-    void RunContext::pushScopedMessage(MessageInfo const & message) {
-        m_messages.push_back(message);
-    }
-
-    void RunContext::popScopedMessage(MessageInfo const & message) {
-        m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
-    }
-
-    std::string RunContext::getCurrentTestName() const {
-        return m_activeTestCase
-            ? m_activeTestCase->getTestCaseInfo().name
-            : std::string();
-    }
-
-    const AssertionResult * RunContext::getLastResult() const {
-        return &(*m_lastResult);
-    }
-
-    void RunContext::exceptionEarlyReported() {
-        m_shouldReportUnexpected = false;
-    }
-
-    void RunContext::handleFatalErrorCondition( StringRef message ) {
-        // First notify reporter that bad things happened
-        m_reporter->fatalErrorEncountered(message);
-
-        // Don't rebuild the result -- the stringification itself can cause more fatal errors
-        // Instead, fake a result data.
-        AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
-        tempResult.message = message;
-        AssertionResult result(m_lastAssertionInfo, tempResult);
-
-        assertionEnded(result);
-
-        handleUnfinishedSections();
-
-        // Recreate section for test case (as we will lose the one that was in scope)
-        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
-        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
-
-        Counts assertions;
-        assertions.failed = 1;
-        SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
-        m_reporter->sectionEnded(testCaseSectionStats);
-
-        auto const& testInfo = m_activeTestCase->getTestCaseInfo();
-
-        Totals deltaTotals;
-        deltaTotals.testCases.failed = 1;
-        deltaTotals.assertions.failed = 1;
-        m_reporter->testCaseEnded(TestCaseStats(testInfo,
-                                  deltaTotals,
-                                  std::string(),
-                                  std::string(),
-                                  false));
-        m_totals.testCases.failed++;
-        testGroupEnded(std::string(), m_totals, 1, 1);
-        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
-    }
-
-    bool RunContext::lastAssertionPassed() {
-         return m_lastAssertionPassed;
-    }
-
-    void RunContext::assertionPassed() {
-        m_lastAssertionPassed = true;
-        ++m_totals.assertions.passed;
-        resetAssertionInfo();
-    }
-
-    bool RunContext::aborting() const {
-        return m_totals.assertions.failed == static_cast<std::size_t>(m_config->abortAfter());
-    }
-
-    void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
-        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
-        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
-        m_reporter->sectionStarting(testCaseSection);
-        Counts prevAssertions = m_totals.assertions;
-        double duration = 0;
-        m_shouldReportUnexpected = true;
-        m_lastAssertionInfo = { "TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal };
-
-        seedRng(*m_config);
-
-        Timer timer;
-        try {
-            if (m_reporter->getPreferences().shouldRedirectStdOut) {
-#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
-                RedirectedStdOut redirectedStdOut;
-                RedirectedStdErr redirectedStdErr;
-
-                timer.start();
-                invokeActiveTestCase();
-                redirectedCout += redirectedStdOut.str();
-                redirectedCerr += redirectedStdErr.str();
-#else
-                OutputRedirect r(redirectedCout, redirectedCerr);
-                timer.start();
-                invokeActiveTestCase();
-#endif
-            } else {
-                timer.start();
-                invokeActiveTestCase();
-            }
-            duration = timer.getElapsedSeconds();
-        } catch (TestFailureException&) {
-            // This just means the test was aborted due to failure
-        } catch (...) {
-            // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
-            // are reported without translation at the point of origin.
-            if( m_shouldReportUnexpected ) {
-                AssertionReaction dummyReaction;
-                handleUnexpectedInflightException( m_lastAssertionInfo, translateActiveException(), dummyReaction );
-            }
-        }
-        Counts assertions = m_totals.assertions - prevAssertions;
-        bool missingAssertions = testForMissingAssertions(assertions);
-
-        m_testCaseTracker->close();
-        handleUnfinishedSections();
-        m_messages.clear();
-
-        SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
-        m_reporter->sectionEnded(testCaseSectionStats);
-    }
-
-    void RunContext::invokeActiveTestCase() {
-        FatalConditionHandler fatalConditionHandler; // Handle signals
-        m_activeTestCase->invoke();
-        fatalConditionHandler.reset();
-    }
-
-    void RunContext::handleUnfinishedSections() {
-        // If sections ended prematurely due to an exception we stored their
-        // infos here so we can tear them down outside the unwind process.
-        for (auto it = m_unfinishedSections.rbegin(),
-             itEnd = m_unfinishedSections.rend();
-             it != itEnd;
-             ++it)
-            sectionEnded(*it);
-        m_unfinishedSections.clear();
-    }
-
-    void RunContext::handleExpr(
-        AssertionInfo const& info,
-        ITransientExpression const& expr,
-        AssertionReaction& reaction
-    ) {
-        m_reporter->assertionStarting( info );
-
-        bool negated = isFalseTest( info.resultDisposition );
-        bool result = expr.getResult() != negated;
-
-        if( result ) {
-            if (!m_includeSuccessfulResults) {
-                assertionPassed();
-            }
-            else {
-                reportExpr(info, ResultWas::Ok, &expr, negated);
-            }
-        }
-        else {
-            reportExpr(info, ResultWas::ExpressionFailed, &expr, negated );
-            populateReaction( reaction );
-        }
-    }
-    void RunContext::reportExpr(
-            AssertionInfo const &info,
-            ResultWas::OfType resultType,
-            ITransientExpression const *expr,
-            bool negated ) {
-
-        m_lastAssertionInfo = info;
-        AssertionResultData data( resultType, LazyExpression( negated ) );
-
-        AssertionResult assertionResult{ info, data };
-        assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;
-
-        assertionEnded( assertionResult );
-    }
-
-    void RunContext::handleMessage(
-            AssertionInfo const& info,
-            ResultWas::OfType resultType,
-            StringRef const& message,
-            AssertionReaction& reaction
-    ) {
-        m_reporter->assertionStarting( info );
-
-        m_lastAssertionInfo = info;
-
-        AssertionResultData data( resultType, LazyExpression( false ) );
-        data.message = message;
-        AssertionResult assertionResult{ m_lastAssertionInfo, data };
-        assertionEnded( assertionResult );
-        if( !assertionResult.isOk() )
-            populateReaction( reaction );
-    }
-    void RunContext::handleUnexpectedExceptionNotThrown(
-            AssertionInfo const& info,
-            AssertionReaction& reaction
-    ) {
-        handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
-    }
-
-    void RunContext::handleUnexpectedInflightException(
-            AssertionInfo const& info,
-            std::string const& message,
-            AssertionReaction& reaction
-    ) {
-        m_lastAssertionInfo = info;
-
-        AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
-        data.message = message;
-        AssertionResult assertionResult{ info, data };
-        assertionEnded( assertionResult );
-        populateReaction( reaction );
-    }
-
-    void RunContext::populateReaction( AssertionReaction& reaction ) {
-        reaction.shouldDebugBreak = m_config->shouldDebugBreak();
-        reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
-    }
-
-    void RunContext::handleIncomplete(
-            AssertionInfo const& info
-    ) {
-        m_lastAssertionInfo = info;
-
-        AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
-        data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
-        AssertionResult assertionResult{ info, data };
-        assertionEnded( assertionResult );
-    }
-    void RunContext::handleNonExpr(
-            AssertionInfo const &info,
-            ResultWas::OfType resultType,
-            AssertionReaction &reaction
-    ) {
-        m_lastAssertionInfo = info;
-
-        AssertionResultData data( resultType, LazyExpression( false ) );
-        AssertionResult assertionResult{ info, data };
-        assertionEnded( assertionResult );
-
-        if( !assertionResult.isOk() )
-            populateReaction( reaction );
-    }
-
-    IResultCapture& getResultCapture() {
-        if (auto* capture = getCurrentContext().getResultCapture())
-            return *capture;
-        else
-            CATCH_INTERNAL_ERROR("No result capture instance");
-    }
-}
-// end catch_run_context.cpp
-// start catch_section.cpp
-
-namespace Catch {
-
-    Section::Section( SectionInfo const& info )
-    :   m_info( info ),
-        m_sectionIncluded( getResultCapture().sectionStarted( m_info, m_assertions ) )
-    {
-        m_timer.start();
-    }
-
-    Section::~Section() {
-        if( m_sectionIncluded ) {
-            SectionEndInfo endInfo( m_info, m_assertions, m_timer.getElapsedSeconds() );
-            if( uncaught_exceptions() )
-                getResultCapture().sectionEndedEarly( endInfo );
-            else
-                getResultCapture().sectionEnded( endInfo );
-        }
-    }
-
-    // This indicates whether the section should be executed or not
-    Section::operator bool() const {
-        return m_sectionIncluded;
-    }
-
-} // end namespace Catch
-// end catch_section.cpp
-// start catch_section_info.cpp
-
-namespace Catch {
-
-    SectionInfo::SectionInfo
-        (   SourceLineInfo const& _lineInfo,
-            std::string const& _name,
-            std::string const& _description )
-    :   name( _name ),
-        description( _description ),
-        lineInfo( _lineInfo )
-    {}
-
-    SectionEndInfo::SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds )
-    : sectionInfo( _sectionInfo ), prevAssertions( _prevAssertions ), durationInSeconds( _durationInSeconds )
-    {}
-
-} // end namespace Catch
-// end catch_section_info.cpp
-// start catch_session.cpp
-
-// start catch_session.h
-
-#include <memory>
-
-namespace Catch {
-
-    class Session : NonCopyable {
-    public:
-
-        Session();
-        ~Session() override;
-
-        void showHelp() const;
-        void libIdentify();
-
-        int applyCommandLine( int argc, char const * const * argv );
-
-        void useConfigData( ConfigData const& configData );
-
-        int run( int argc, char* argv[] );
-    #if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
-        int run( int argc, wchar_t* const argv[] );
-    #endif
-        int run();
-
-        clara::Parser const& cli() const;
-        void cli( clara::Parser const& newParser );
-        ConfigData& configData();
-        Config& config();
-    private:
-        int runInternal();
-
-        clara::Parser m_cli;
-        ConfigData m_configData;
-        std::shared_ptr<Config> m_config;
-        bool m_startupExceptions = false;
-    };
-
-} // end namespace Catch
-
-// end catch_session.h
-// start catch_version.h
-
-#include <iosfwd>
-
-namespace Catch {
-
-    // Versioning information
-    struct Version {
-        Version( Version const& ) = delete;
-        Version& operator=( Version const& ) = delete;
-        Version(    unsigned int _majorVersion,
-                    unsigned int _minorVersion,
-                    unsigned int _patchNumber,
-                    char const * const _branchName,
-                    unsigned int _buildNumber );
-
-        unsigned int const majorVersion;
-        unsigned int const minorVersion;
-        unsigned int const patchNumber;
-
-        // buildNumber is only used if branchName is not null
-        char const * const branchName;
-        unsigned int const buildNumber;
-
-        friend std::ostream& operator << ( std::ostream& os, Version const& version );
-    };
-
-    Version const& libraryVersion();
-}
-
-// end catch_version.h
-#include <cstdlib>
-#include <iomanip>
-
-namespace Catch {
-
-    namespace {
-        const int MaxExitCode = 255;
-
-        IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
-            auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
-            CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");
-
-            return reporter;
-        }
-
-        IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
-            if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()) {
-                return createReporter(config->getReporterName(), config);
-            }
-
-            auto multi = std::unique_ptr<ListeningReporter>(new ListeningReporter);
-
-            auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
-            for (auto const& listener : listeners) {
-                multi->addListener(listener->create(Catch::ReporterConfig(config)));
-            }
-            multi->addReporter(createReporter(config->getReporterName(), config));
-            return std::move(multi);
-        }
-
-        Catch::Totals runTests(std::shared_ptr<Config> const& config) {
-            // FixMe: Add listeners in order first, then add reporters.
-
-            auto reporter = makeReporter(config);
-
-            RunContext context(config, std::move(reporter));
-
-            Totals totals;
-
-            context.testGroupStarting(config->name(), 1, 1);
-
-            TestSpec testSpec = config->testSpec();
-
-            auto const& allTestCases = getAllTestCasesSorted(*config);
-            for (auto const& testCase : allTestCases) {
-                if (!context.aborting() && matchTest(testCase, testSpec, *config))
-                    totals += context.runTest(testCase);
-                else
-                    context.reporter().skipTest(testCase);
-            }
-
-            if (config->warnAboutNoTests() && totals.testCases.total() == 0) {
-                ReusableStringStream testConfig;
-
-                bool first = true;
-                for (const auto& input : config->getTestsOrTags()) {
-                    if (!first) { testConfig << ' '; }
-                    first = false;
-                    testConfig << input;
-                }
-
-                context.reporter().noMatchingTestCases(testConfig.str());
-                totals.error = -1;
-            }
-
-            context.testGroupEnded(config->name(), totals, 1, 1);
-            return totals;
-        }
-
-        void applyFilenamesAsTags(Catch::IConfig const& config) {
-            auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
-            for (auto& testCase : tests) {
-                auto tags = testCase.tags;
-
-                std::string filename = testCase.lineInfo.file;
-                auto lastSlash = filename.find_last_of("\\/");
-                if (lastSlash != std::string::npos) {
-                    filename.erase(0, lastSlash);
-                    filename[0] = '#';
-                }
-
-                auto lastDot = filename.find_last_of('.');
-                if (lastDot != std::string::npos) {
-                    filename.erase(lastDot);
-                }
-
-                tags.push_back(std::move(filename));
-                setTags(testCase, tags);
-            }
-        }
-
-    } // anon namespace
-
-    Session::Session() {
-        static bool alreadyInstantiated = false;
-        if( alreadyInstantiated ) {
-            try         { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
-            catch(...)  { getMutableRegistryHub().registerStartupException(); }
-        }
-
-        const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
-        if ( !exceptions.empty() ) {
-            m_startupExceptions = true;
-            Colour colourGuard( Colour::Red );
-            Catch::cerr() << "Errors occurred during startup!" << '\n';
-            // iterate over all exceptions and notify user
-            for ( const auto& ex_ptr : exceptions ) {
-                try {
-                    std::rethrow_exception(ex_ptr);
-                } catch ( std::exception const& ex ) {
-                    Catch::cerr() << Column( ex.what() ).indent(2) << '\n';
-                }
-            }
-        }
-
-        alreadyInstantiated = true;
-        m_cli = makeCommandLineParser( m_configData );
-    }
-    Session::~Session() {
-        Catch::cleanUp();
-    }
-
-    void Session::showHelp() const {
-        Catch::cout()
-                << "\nCatch v" << libraryVersion() << "\n"
-                << m_cli << std::endl
-                << "For more detailed usage please see the project docs\n" << std::endl;
-    }
-    void Session::libIdentify() {
-        Catch::cout()
-                << std::left << std::setw(16) << "description: " << "A Catch test executable\n"
-                << std::left << std::setw(16) << "category: " << "testframework\n"
-                << std::left << std::setw(16) << "framework: " << "Catch Test\n"
-                << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
-    }
-
-    int Session::applyCommandLine( int argc, char const * const * argv ) {
-        if( m_startupExceptions )
-            return 1;
-
-        auto result = m_cli.parse( clara::Args( argc, argv ) );
-        if( !result ) {
-            Catch::cerr()
-                << Colour( Colour::Red )
-                << "\nError(s) in input:\n"
-                << Column( result.errorMessage() ).indent( 2 )
-                << "\n\n";
-            Catch::cerr() << "Run with -? for usage\n" << std::endl;
-            return MaxExitCode;
-        }
-
-        if( m_configData.showHelp )
-            showHelp();
-        if( m_configData.libIdentify )
-            libIdentify();
-        m_config.reset();
-        return 0;
-    }
-
-    void Session::useConfigData( ConfigData const& configData ) {
-        m_configData = configData;
-        m_config.reset();
-    }
-
-    int Session::run( int argc, char* argv[] ) {
-        if( m_startupExceptions )
-            return 1;
-        int returnCode = applyCommandLine( argc, argv );
-        if( returnCode == 0 )
-            returnCode = run();
-        return returnCode;
-    }
-
-#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
-    int Session::run( int argc, wchar_t* const argv[] ) {
-
-        char **utf8Argv = new char *[ argc ];
-
-        for ( int i = 0; i < argc; ++i ) {
-            int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );
-
-            utf8Argv[ i ] = new char[ bufSize ];
-
-            WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
-        }
-
-        int returnCode = run( argc, utf8Argv );
-
-        for ( int i = 0; i < argc; ++i )
-            delete [] utf8Argv[ i ];
-
-        delete [] utf8Argv;
-
-        return returnCode;
-    }
-#endif
-    int Session::run() {
-        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
-            Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
-            static_cast<void>(std::getchar());
-        }
-        int exitCode = runInternal();
-        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
-            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
-            static_cast<void>(std::getchar());
-        }
-        return exitCode;
-    }
-
-    clara::Parser const& Session::cli() const {
-        return m_cli;
-    }
-    void Session::cli( clara::Parser const& newParser ) {
-        m_cli = newParser;
-    }
-    ConfigData& Session::configData() {
-        return m_configData;
-    }
-    Config& Session::config() {
-        if( !m_config )
-            m_config = std::make_shared<Config>( m_configData );
-        return *m_config;
-    }
-
-    int Session::runInternal() {
-        if( m_startupExceptions )
-            return 1;
-
-        if( m_configData.showHelp || m_configData.libIdentify )
-            return 0;
-
-        try
-        {
-            config(); // Force config to be constructed
-
-            seedRng( *m_config );
-
-            if( m_configData.filenamesAsTags )
-                applyFilenamesAsTags( *m_config );
-
-            // Handle list request
-            if( Option<std::size_t> listed = list( config() ) )
-                return static_cast<int>( *listed );
-
-            auto totals = runTests( m_config );
-            // Note that on unices only the lower 8 bits are usually used, clamping
-            // the return value to 255 prevents false negative when some multiple
-            // of 256 tests has failed
-            return (std::min) (MaxExitCode, (std::max) (totals.error, static_cast<int>(totals.assertions.failed)));
-        }
-        catch( std::exception& ex ) {
-            Catch::cerr() << ex.what() << std::endl;
-            return MaxExitCode;
-        }
-    }
-
-} // end namespace Catch
-// end catch_session.cpp
-// start catch_startup_exception_registry.cpp
-
-namespace Catch {
-    void StartupExceptionRegistry::add( std::exception_ptr const& exception ) noexcept {
-        try {
-            m_exceptions.push_back(exception);
-        }
-        catch(...) {
-            // If we run out of memory during start-up there's really not a lot more we can do about it
-            std::terminate();
-        }
-    }
-
-    std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
-        return m_exceptions;
-    }
-
-} // end namespace Catch
-// end catch_startup_exception_registry.cpp
-// start catch_stream.cpp
-
-#include <cstdio>
-#include <iostream>
-#include <fstream>
-#include <sstream>
-#include <vector>
-#include <memory>
-
-#if defined(__clang__)
-#    pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wexit-time-destructors"
-#endif
-
-namespace Catch {
-
-    Catch::IStream::~IStream() = default;
-
-    namespace detail { namespace {
-        template<typename WriterF, std::size_t bufferSize=256>
-        class StreamBufImpl : public std::streambuf {
-            char data[bufferSize];
-            WriterF m_writer;
-
-        public:
-            StreamBufImpl() {
-                setp( data, data + sizeof(data) );
-            }
-
-            ~StreamBufImpl() noexcept {
-                StreamBufImpl::sync();
-            }
-
-        private:
-            int overflow( int c ) override {
-                sync();
-
-                if( c != EOF ) {
-                    if( pbase() == epptr() )
-                        m_writer( std::string( 1, static_cast<char>( c ) ) );
-                    else
-                        sputc( static_cast<char>( c ) );
-                }
-                return 0;
-            }
-
-            int sync() override {
-                if( pbase() != pptr() ) {
-                    m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
-                    setp( pbase(), epptr() );
-                }
-                return 0;
-            }
-        };
-
-        ///////////////////////////////////////////////////////////////////////////
-
-        struct OutputDebugWriter {
-
-            void operator()( std::string const&str ) {
-                writeToDebugConsole( str );
-            }
-        };
-
-        ///////////////////////////////////////////////////////////////////////////
-
-        class FileStream : public IStream {
-            mutable std::ofstream m_ofs;
-        public:
-            FileStream( StringRef filename ) {
-                m_ofs.open( filename.c_str() );
-                CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << "'" );
-            }
-            ~FileStream() override = default;
-        public: // IStream
-            std::ostream& stream() const override {
-                return m_ofs;
-            }
-        };
-
-        ///////////////////////////////////////////////////////////////////////////
-
-        class CoutStream : public IStream {
-            mutable std::ostream m_os;
-        public:
-            // Store the streambuf from cout up-front because
-            // cout may get redirected when running tests
-            CoutStream() : m_os( Catch::cout().rdbuf() ) {}
-            ~CoutStream() override = default;
-
-        public: // IStream
-            std::ostream& stream() const override { return m_os; }
-        };
-
-        ///////////////////////////////////////////////////////////////////////////
-
-        class DebugOutStream : public IStream {
-            std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
-            mutable std::ostream m_os;
-        public:
-            DebugOutStream()
-            :   m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
-                m_os( m_streamBuf.get() )
-            {}
-
-            ~DebugOutStream() override = default;
-
-        public: // IStream
-            std::ostream& stream() const override { return m_os; }
-        };
-
-    }} // namespace anon::detail
-
-    ///////////////////////////////////////////////////////////////////////////
-
-    auto makeStream( StringRef const &filename ) -> IStream const* {
-        if( filename.empty() )
-            return new detail::CoutStream();
-        else if( filename[0] == '%' ) {
-            if( filename == "%debug" )
-                return new detail::DebugOutStream();
-            else
-                CATCH_ERROR( "Unrecognised stream: '" << filename << "'" );
-        }
-        else
-            return new detail::FileStream( filename );
-    }
-
-    // This class encapsulates the idea of a pool of ostringstreams that can be reused.
-    struct StringStreams {
-        std::vector<std::unique_ptr<std::ostringstream>> m_streams;
-        std::vector<std::size_t> m_unused;
-        std::ostringstream m_referenceStream; // Used for copy state/ flags from
-        static StringStreams* s_instance;
-
-        auto add() -> std::size_t {
-            if( m_unused.empty() ) {
-                m_streams.push_back( std::unique_ptr<std::ostringstream>( new std::ostringstream ) );
-                return m_streams.size()-1;
-            }
-            else {
-                auto index = m_unused.back();
-                m_unused.pop_back();
-                return index;
-            }
-        }
-
-        void release( std::size_t index ) {
-            m_streams[index]->copyfmt( m_referenceStream ); // Restore initial flags and other state
-            m_unused.push_back(index);
-        }
-
-        // !TBD: put in TLS
-        static auto instance() -> StringStreams& {
-            if( !s_instance )
-                s_instance = new StringStreams();
-            return *s_instance;
-        }
-        static void cleanup() {
-            delete s_instance;
-            s_instance = nullptr;
-        }
-    };
-
-    StringStreams* StringStreams::s_instance = nullptr;
-
-    void ReusableStringStream::cleanup() {
-        StringStreams::cleanup();
-    }
-
-    ReusableStringStream::ReusableStringStream()
-    :   m_index( StringStreams::instance().add() ),
-        m_oss( StringStreams::instance().m_streams[m_index].get() )
-    {}
-
-    ReusableStringStream::~ReusableStringStream() {
-        static_cast<std::ostringstream*>( m_oss )->str("");
-        m_oss->clear();
-        StringStreams::instance().release( m_index );
-    }
-
-    auto ReusableStringStream::str() const -> std::string {
-        return static_cast<std::ostringstream*>( m_oss )->str();
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-
-#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
-    std::ostream& cout() { return std::cout; }
-    std::ostream& cerr() { return std::cerr; }
-    std::ostream& clog() { return std::clog; }
-#endif
-}
-
-#if defined(__clang__)
-#    pragma clang diagnostic pop
-#endif
-// end catch_stream.cpp
-// start catch_string_manip.cpp
-
-#include <algorithm>
-#include <ostream>
-#include <cstring>
-#include <cctype>
-
-namespace Catch {
-
-    bool startsWith( std::string const& s, std::string const& prefix ) {
-        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
-    }
-    bool startsWith( std::string const& s, char prefix ) {
-        return !s.empty() && s[0] == prefix;
-    }
-    bool endsWith( std::string const& s, std::string const& suffix ) {
-        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
-    }
-    bool endsWith( std::string const& s, char suffix ) {
-        return !s.empty() && s[s.size()-1] == suffix;
-    }
-    bool contains( std::string const& s, std::string const& infix ) {
-        return s.find( infix ) != std::string::npos;
-    }
-    char toLowerCh(char c) {
-        return static_cast<char>( std::tolower( c ) );
-    }
-    void toLowerInPlace( std::string& s ) {
-        std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
-    }
-    std::string toLower( std::string const& s ) {
-        std::string lc = s;
-        toLowerInPlace( lc );
-        return lc;
-    }
-    std::string trim( std::string const& str ) {
-        static char const* whitespaceChars = "\n\r\t ";
-        std::string::size_type start = str.find_first_not_of( whitespaceChars );
-        std::string::size_type end = str.find_last_not_of( whitespaceChars );
-
-        return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
-    }
-
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
-        bool replaced = false;
-        std::size_t i = str.find( replaceThis );
-        while( i != std::string::npos ) {
-            replaced = true;
-            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
-            if( i < str.size()-withThis.size() )
-                i = str.find( replaceThis, i+withThis.size() );
-            else
-                i = std::string::npos;
-        }
-        return replaced;
-    }
-
-    pluralise::pluralise( std::size_t count, std::string const& label )
-    :   m_count( count ),
-        m_label( label )
-    {}
-
-    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
-        os << pluraliser.m_count << ' ' << pluraliser.m_label;
-        if( pluraliser.m_count != 1 )
-            os << 's';
-        return os;
-    }
-
-}
-// end catch_string_manip.cpp
-// start catch_stringref.cpp
-
-#if defined(__clang__)
-#    pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wexit-time-destructors"
-#endif
-
-#include <ostream>
-#include <cstring>
-#include <cstdint>
-
-namespace {
-    const uint32_t byte_2_lead = 0xC0;
-    const uint32_t byte_3_lead = 0xE0;
-    const uint32_t byte_4_lead = 0xF0;
-}
-
-namespace Catch {
-    StringRef::StringRef( char const* rawChars ) noexcept
-    : StringRef( rawChars, static_cast<StringRef::size_type>(std::strlen(rawChars) ) )
-    {}
-
-    StringRef::operator std::string() const {
-        return std::string( m_start, m_size );
-    }
-
-    void StringRef::swap( StringRef& other ) noexcept {
-        std::swap( m_start, other.m_start );
-        std::swap( m_size, other.m_size );
-        std::swap( m_data, other.m_data );
-    }
-
-    auto StringRef::c_str() const -> char const* {
-        if( isSubstring() )
-           const_cast<StringRef*>( this )->takeOwnership();
-        return m_start;
-    }
-    auto StringRef::currentData() const noexcept -> char const* {
-        return m_start;
-    }
-
-    auto StringRef::isOwned() const noexcept -> bool {
-        return m_data != nullptr;
-    }
-    auto StringRef::isSubstring() const noexcept -> bool {
-        return m_start[m_size] != '\0';
-    }
-
-    void StringRef::takeOwnership() {
-        if( !isOwned() ) {
-            m_data = new char[m_size+1];
-            memcpy( m_data, m_start, m_size );
-            m_data[m_size] = '\0';
-            m_start = m_data;
-        }
-    }
-    auto StringRef::substr( size_type start, size_type size ) const noexcept -> StringRef {
-        if( start < m_size )
-            return StringRef( m_start+start, size );
-        else
-            return StringRef();
-    }
-    auto StringRef::operator == ( StringRef const& other ) const noexcept -> bool {
-        return
-            size() == other.size() &&
-            (std::strncmp( m_start, other.m_start, size() ) == 0);
-    }
-    auto StringRef::operator != ( StringRef const& other ) const noexcept -> bool {
-        return !operator==( other );
-    }
-
-    auto StringRef::operator[](size_type index) const noexcept -> char {
-        return m_start[index];
-    }
-
-    auto StringRef::numberOfCharacters() const noexcept -> size_type {
-        size_type noChars = m_size;
-        // Make adjustments for uft encodings
-        for( size_type i=0; i < m_size; ++i ) {
-            char c = m_start[i];
-            if( ( c & byte_2_lead ) == byte_2_lead ) {
-                noChars--;
-                if (( c & byte_3_lead ) == byte_3_lead )
-                    noChars--;
-                if( ( c & byte_4_lead ) == byte_4_lead )
-                    noChars--;
-            }
-        }
-        return noChars;
-    }
-
-    auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string {
-        std::string str;
-        str.reserve( lhs.size() + rhs.size() );
-        str += lhs;
-        str += rhs;
-        return str;
-    }
-    auto operator + ( StringRef const& lhs, const char* rhs ) -> std::string {
-        return std::string( lhs ) + std::string( rhs );
-    }
-    auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string {
-        return std::string( lhs ) + std::string( rhs );
-    }
-
-    auto operator << ( std::ostream& os, StringRef const& str ) -> std::ostream& {
-        return os.write(str.currentData(), str.size());
-    }
-
-    auto operator+=( std::string& lhs, StringRef const& rhs ) -> std::string& {
-        lhs.append(rhs.currentData(), rhs.size());
-        return lhs;
-    }
-
-} // namespace Catch
-
-#if defined(__clang__)
-#    pragma clang diagnostic pop
-#endif
-// end catch_stringref.cpp
-// start catch_tag_alias.cpp
-
-namespace Catch {
-    TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo): tag(_tag), lineInfo(_lineInfo) {}
-}
-// end catch_tag_alias.cpp
-// start catch_tag_alias_autoregistrar.cpp
-
-namespace Catch {
-
-    RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
-        try {
-            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
-        } catch (...) {
-            // Do not throw when constructing global objects, instead register the exception to be processed later
-            getMutableRegistryHub().registerStartupException();
-        }
-    }
-
-}
-// end catch_tag_alias_autoregistrar.cpp
-// start catch_tag_alias_registry.cpp
-
-#include <sstream>
-
-namespace Catch {
-
-    TagAliasRegistry::~TagAliasRegistry() {}
-
-    TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
-        auto it = m_registry.find( alias );
-        if( it != m_registry.end() )
-            return &(it->second);
-        else
-            return nullptr;
-    }
-
-    std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {
-        std::string expandedTestSpec = unexpandedTestSpec;
-        for( auto const& registryKvp : m_registry ) {
-            std::size_t pos = expandedTestSpec.find( registryKvp.first );
-            if( pos != std::string::npos ) {
-                expandedTestSpec =  expandedTestSpec.substr( 0, pos ) +
-                                    registryKvp.second.tag +
-                                    expandedTestSpec.substr( pos + registryKvp.first.size() );
-            }
-        }
-        return expandedTestSpec;
-    }
-
-    void TagAliasRegistry::add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) {
-        CATCH_ENFORCE( startsWith(alias, "[@") && endsWith(alias, ']'),
-                      "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo );
-
-        CATCH_ENFORCE( m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
-                      "error: tag alias, '" << alias << "' already registered.\n"
-                      << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
-                      << "\tRedefined at: " << lineInfo );
-    }
-
-    ITagAliasRegistry::~ITagAliasRegistry() {}
-
-    ITagAliasRegistry const& ITagAliasRegistry::get() {
-        return getRegistryHub().getTagAliasRegistry();
-    }
-
-} // end namespace Catch
-// end catch_tag_alias_registry.cpp
-// start catch_test_case_info.cpp
-
-#include <cctype>
-#include <exception>
-#include <algorithm>
-#include <sstream>
-
-namespace Catch {
-
-    TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
-        if( startsWith( tag, '.' ) ||
-            tag == "!hide" )
-            return TestCaseInfo::IsHidden;
-        else if( tag == "!throws" )
-            return TestCaseInfo::Throws;
-        else if( tag == "!shouldfail" )
-            return TestCaseInfo::ShouldFail;
-        else if( tag == "!mayfail" )
-            return TestCaseInfo::MayFail;
-        else if( tag == "!nonportable" )
-            return TestCaseInfo::NonPortable;
-        else if( tag == "!benchmark" )
-            return static_cast<TestCaseInfo::SpecialProperties>( TestCaseInfo::Benchmark | TestCaseInfo::IsHidden );
-        else
-            return TestCaseInfo::None;
-    }
-    bool isReservedTag( std::string const& tag ) {
-        return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum( static_cast<unsigned char>(tag[0]) );
-    }
-    void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
-        CATCH_ENFORCE( !isReservedTag(tag),
-                      "Tag name: [" << tag << "] is not allowed.\n"
-                      << "Tag names starting with non alpha-numeric characters are reserved\n"
-                      << _lineInfo );
-    }
-
-    TestCase makeTestCase(  ITestInvoker* _testCase,
-                            std::string const& _className,
-                            NameAndTags const& nameAndTags,
-                            SourceLineInfo const& _lineInfo )
-    {
-        bool isHidden = false;
-
-        // Parse out tags
-        std::vector<std::string> tags;
-        std::string desc, tag;
-        bool inTag = false;
-        std::string _descOrTags = nameAndTags.tags;
-        for (char c : _descOrTags) {
-            if( !inTag ) {
-                if( c == '[' )
-                    inTag = true;
-                else
-                    desc += c;
-            }
-            else {
-                if( c == ']' ) {
-                    TestCaseInfo::SpecialProperties prop = parseSpecialTag( tag );
-                    if( ( prop & TestCaseInfo::IsHidden ) != 0 )
-                        isHidden = true;
-                    else if( prop == TestCaseInfo::None )
-                        enforceNotReservedTag( tag, _lineInfo );
-
-                    tags.push_back( tag );
-                    tag.clear();
-                    inTag = false;
-                }
-                else
-                    tag += c;
-            }
-        }
-        if( isHidden ) {
-            tags.push_back( "." );
-        }
-
-        TestCaseInfo info( nameAndTags.name, _className, desc, tags, _lineInfo );
-        return TestCase( _testCase, std::move(info) );
-    }
-
-    void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags ) {
-        std::sort(begin(tags), end(tags));
-        tags.erase(std::unique(begin(tags), end(tags)), end(tags));
-        testCaseInfo.lcaseTags.clear();
-
-        for( auto const& tag : tags ) {
-            std::string lcaseTag = toLower( tag );
-            testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>( testCaseInfo.properties | parseSpecialTag( lcaseTag ) );
-            testCaseInfo.lcaseTags.push_back( lcaseTag );
-        }
-        testCaseInfo.tags = std::move(tags);
-    }
-
-    TestCaseInfo::TestCaseInfo( std::string const& _name,
-                                std::string const& _className,
-                                std::string const& _description,
-                                std::vector<std::string> const& _tags,
-                                SourceLineInfo const& _lineInfo )
-    :   name( _name ),
-        className( _className ),
-        description( _description ),
-        lineInfo( _lineInfo ),
-        properties( None )
-    {
-        setTags( *this, _tags );
-    }
-
-    bool TestCaseInfo::isHidden() const {
-        return ( properties & IsHidden ) != 0;
-    }
-    bool TestCaseInfo::throws() const {
-        return ( properties & Throws ) != 0;
-    }
-    bool TestCaseInfo::okToFail() const {
-        return ( properties & (ShouldFail | MayFail ) ) != 0;
-    }
-    bool TestCaseInfo::expectedToFail() const {
-        return ( properties & (ShouldFail ) ) != 0;
-    }
-
-    std::string TestCaseInfo::tagsAsString() const {
-        std::string ret;
-        // '[' and ']' per tag
-        std::size_t full_size = 2 * tags.size();
-        for (const auto& tag : tags) {
-            full_size += tag.size();
-        }
-        ret.reserve(full_size);
-        for (const auto& tag : tags) {
-            ret.push_back('[');
-            ret.append(tag);
-            ret.push_back(']');
-        }
-
-        return ret;
-    }
-
-    TestCase::TestCase( ITestInvoker* testCase, TestCaseInfo&& info ) : TestCaseInfo( std::move(info) ), test( testCase ) {}
-
-    TestCase TestCase::withName( std::string const& _newName ) const {
-        TestCase other( *this );
-        other.name = _newName;
-        return other;
-    }
-
-    void TestCase::invoke() const {
-        test->invoke();
-    }
-
-    bool TestCase::operator == ( TestCase const& other ) const {
-        return  test.get() == other.test.get() &&
-                name == other.name &&
-                className == other.className;
-    }
-
-    bool TestCase::operator < ( TestCase const& other ) const {
-        return name < other.name;
-    }
-
-    TestCaseInfo const& TestCase::getTestCaseInfo() const
-    {
-        return *this;
-    }
-
-} // end namespace Catch
-// end catch_test_case_info.cpp
-// start catch_test_case_registry_impl.cpp
-
-#include <sstream>
-
-namespace Catch {
-
-    std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases ) {
-
-        std::vector<TestCase> sorted = unsortedTestCases;
-
-        switch( config.runOrder() ) {
-            case RunTests::InLexicographicalOrder:
-                std::sort( sorted.begin(), sorted.end() );
-                break;
-            case RunTests::InRandomOrder:
-                seedRng( config );
-                RandomNumberGenerator::shuffle( sorted );
-                break;
-            case RunTests::InDeclarationOrder:
-                // already in declaration order
-                break;
-        }
-        return sorted;
-    }
-    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config ) {
-        return testSpec.matches( testCase ) && ( config.allowThrows() || !testCase.throws() );
-    }
-
-    void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions ) {
-        std::set<TestCase> seenFunctions;
-        for( auto const& function : functions ) {
-            auto prev = seenFunctions.insert( function );
-            CATCH_ENFORCE( prev.second,
-                    "error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
-                    << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
-                    << "\tRedefined at " << function.getTestCaseInfo().lineInfo );
-        }
-    }
-
-    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
-        std::vector<TestCase> filtered;
-        filtered.reserve( testCases.size() );
-        for( auto const& testCase : testCases )
-            if( matchTest( testCase, testSpec, config ) )
-                filtered.push_back( testCase );
-        return filtered;
-    }
-    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config ) {
-        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
-    }
-
-    void TestRegistry::registerTest( TestCase const& testCase ) {
-        std::string name = testCase.getTestCaseInfo().name;
-        if( name.empty() ) {
-            ReusableStringStream rss;
-            rss << "Anonymous test case " << ++m_unnamedCount;
-            return registerTest( testCase.withName( rss.str() ) );
-        }
-        m_functions.push_back( testCase );
-    }
-
-    std::vector<TestCase> const& TestRegistry::getAllTests() const {
-        return m_functions;
-    }
-    std::vector<TestCase> const& TestRegistry::getAllTestsSorted( IConfig const& config ) const {
-        if( m_sortedFunctions.empty() )
-            enforceNoDuplicateTestCases( m_functions );
-
-        if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
-            m_sortedFunctions = sortTests( config, m_functions );
-            m_currentSortOrder = config.runOrder();
-        }
-        return m_sortedFunctions;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    TestInvokerAsFunction::TestInvokerAsFunction( void(*testAsFunction)() ) noexcept : m_testAsFunction( testAsFunction ) {}
-
-    void TestInvokerAsFunction::invoke() const {
-        m_testAsFunction();
-    }
-
-    std::string extractClassName( StringRef const& classOrQualifiedMethodName ) {
-        std::string className = classOrQualifiedMethodName;
-        if( startsWith( className, '&' ) )
-        {
-            std::size_t lastColons = className.rfind( "::" );
-            std::size_t penultimateColons = className.rfind( "::", lastColons-1 );
-            if( penultimateColons == std::string::npos )
-                penultimateColons = 1;
-            className = className.substr( penultimateColons, lastColons-penultimateColons );
-        }
-        return className;
-    }
-
-} // end namespace Catch
-// end catch_test_case_registry_impl.cpp
-// start catch_test_case_tracker.cpp
-
-#include <algorithm>
-#include <cassert>
-#include <stdexcept>
-#include <memory>
-#include <sstream>
-
-#if defined(__clang__)
-#    pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wexit-time-destructors"
-#endif
-
-namespace Catch {
-namespace TestCaseTracking {
-
-    NameAndLocation::NameAndLocation( std::string const& _name, SourceLineInfo const& _location )
-    :   name( _name ),
-        location( _location )
-    {}
-
-    ITracker::~ITracker() = default;
-
-    TrackerContext& TrackerContext::instance() {
-        static TrackerContext s_instance;
-        return s_instance;
-    }
-
-    ITracker& TrackerContext::startRun() {
-        m_rootTracker = std::make_shared<SectionTracker>( NameAndLocation( "{root}", CATCH_INTERNAL_LINEINFO ), *this, nullptr );
-        m_currentTracker = nullptr;
-        m_runState = Executing;
-        return *m_rootTracker;
-    }
-
-    void TrackerContext::endRun() {
-        m_rootTracker.reset();
-        m_currentTracker = nullptr;
-        m_runState = NotStarted;
-    }
-
-    void TrackerContext::startCycle() {
-        m_currentTracker = m_rootTracker.get();
-        m_runState = Executing;
-    }
-    void TrackerContext::completeCycle() {
-        m_runState = CompletedCycle;
-    }
-
-    bool TrackerContext::completedCycle() const {
-        return m_runState == CompletedCycle;
-    }
-    ITracker& TrackerContext::currentTracker() {
-        return *m_currentTracker;
-    }
-    void TrackerContext::setCurrentTracker( ITracker* tracker ) {
-        m_currentTracker = tracker;
-    }
-
-    TrackerBase::TrackerHasName::TrackerHasName( NameAndLocation const& nameAndLocation ) : m_nameAndLocation( nameAndLocation ) {}
-    bool TrackerBase::TrackerHasName::operator ()( ITrackerPtr const& tracker ) const {
-        return
-            tracker->nameAndLocation().name == m_nameAndLocation.name &&
-            tracker->nameAndLocation().location == m_nameAndLocation.location;
-    }
-
-    TrackerBase::TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
-    :   m_nameAndLocation( nameAndLocation ),
-        m_ctx( ctx ),
-        m_parent( parent )
-    {}
-
-    NameAndLocation const& TrackerBase::nameAndLocation() const {
-        return m_nameAndLocation;
-    }
-    bool TrackerBase::isComplete() const {
-        return m_runState == CompletedSuccessfully || m_runState == Failed;
-    }
-    bool TrackerBase::isSuccessfullyCompleted() const {
-        return m_runState == CompletedSuccessfully;
-    }
-    bool TrackerBase::isOpen() const {
-        return m_runState != NotStarted && !isComplete();
-    }
-    bool TrackerBase::hasChildren() const {
-        return !m_children.empty();
-    }
-
-    void TrackerBase::addChild( ITrackerPtr const& child ) {
-        m_children.push_back( child );
-    }
-
-    ITrackerPtr TrackerBase::findChild( NameAndLocation const& nameAndLocation ) {
-        auto it = std::find_if( m_children.begin(), m_children.end(), TrackerHasName( nameAndLocation ) );
-        return( it != m_children.end() )
-            ? *it
-            : nullptr;
-    }
-    ITracker& TrackerBase::parent() {
-        assert( m_parent ); // Should always be non-null except for root
-        return *m_parent;
-    }
-
-    void TrackerBase::openChild() {
-        if( m_runState != ExecutingChildren ) {
-            m_runState = ExecutingChildren;
-            if( m_parent )
-                m_parent->openChild();
-        }
-    }
-
-    bool TrackerBase::isSectionTracker() const { return false; }
-    bool TrackerBase::isIndexTracker() const { return false; }
-
-    void TrackerBase::open() {
-        m_runState = Executing;
-        moveToThis();
-        if( m_parent )
-            m_parent->openChild();
-    }
-
-    void TrackerBase::close() {
-
-        // Close any still open children (e.g. generators)
-        while( &m_ctx.currentTracker() != this )
-            m_ctx.currentTracker().close();
-
-        switch( m_runState ) {
-            case NeedsAnotherRun:
-                break;
-
-            case Executing:
-                m_runState = CompletedSuccessfully;
-                break;
-            case ExecutingChildren:
-                if( m_children.empty() || m_children.back()->isComplete() )
-                    m_runState = CompletedSuccessfully;
-                break;
-
-            case NotStarted:
-            case CompletedSuccessfully:
-            case Failed:
-                CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );
-
-            default:
-                CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
-        }
-        moveToParent();
-        m_ctx.completeCycle();
-    }
-    void TrackerBase::fail() {
-        m_runState = Failed;
-        if( m_parent )
-            m_parent->markAsNeedingAnotherRun();
-        moveToParent();
-        m_ctx.completeCycle();
-    }
-    void TrackerBase::markAsNeedingAnotherRun() {
-        m_runState = NeedsAnotherRun;
-    }
-
-    void TrackerBase::moveToParent() {
-        assert( m_parent );
-        m_ctx.setCurrentTracker( m_parent );
-    }
-    void TrackerBase::moveToThis() {
-        m_ctx.setCurrentTracker( this );
-    }
-
-    SectionTracker::SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
-    :   TrackerBase( nameAndLocation, ctx, parent )
-    {
-        if( parent ) {
-            while( !parent->isSectionTracker() )
-                parent = &parent->parent();
-
-            SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
-            addNextFilters( parentSection.m_filters );
-        }
-    }
-
-    bool SectionTracker::isSectionTracker() const { return true; }
-
-    SectionTracker& SectionTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation ) {
-        std::shared_ptr<SectionTracker> section;
-
-        ITracker& currentTracker = ctx.currentTracker();
-        if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
-            assert( childTracker );
-            assert( childTracker->isSectionTracker() );
-            section = std::static_pointer_cast<SectionTracker>( childTracker );
-        }
-        else {
-            section = std::make_shared<SectionTracker>( nameAndLocation, ctx, &currentTracker );
-            currentTracker.addChild( section );
-        }
-        if( !ctx.completedCycle() )
-            section->tryOpen();
-        return *section;
-    }
-
-    void SectionTracker::tryOpen() {
-        if( !isComplete() && (m_filters.empty() || m_filters[0].empty() ||  m_filters[0] == m_nameAndLocation.name ) )
-            open();
-    }
-
-    void SectionTracker::addInitialFilters( std::vector<std::string> const& filters ) {
-        if( !filters.empty() ) {
-            m_filters.push_back(""); // Root - should never be consulted
-            m_filters.push_back(""); // Test Case - not a section filter
-            m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
-        }
-    }
-    void SectionTracker::addNextFilters( std::vector<std::string> const& filters ) {
-        if( filters.size() > 1 )
-            m_filters.insert( m_filters.end(), ++filters.begin(), filters.end() );
-    }
-
-    IndexTracker::IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size )
-    :   TrackerBase( nameAndLocation, ctx, parent ),
-        m_size( size )
-    {}
-
-    bool IndexTracker::isIndexTracker() const { return true; }
-
-    IndexTracker& IndexTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size ) {
-        std::shared_ptr<IndexTracker> tracker;
-
-        ITracker& currentTracker = ctx.currentTracker();
-        if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
-            assert( childTracker );
-            assert( childTracker->isIndexTracker() );
-            tracker = std::static_pointer_cast<IndexTracker>( childTracker );
-        }
-        else {
-            tracker = std::make_shared<IndexTracker>( nameAndLocation, ctx, &currentTracker, size );
-            currentTracker.addChild( tracker );
-        }
-
-        if( !ctx.completedCycle() && !tracker->isComplete() ) {
-            if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
-                tracker->moveNext();
-            tracker->open();
-        }
-
-        return *tracker;
-    }
-
-    int IndexTracker::index() const { return m_index; }
-
-    void IndexTracker::moveNext() {
-        m_index++;
-        m_children.clear();
-    }
-
-    void IndexTracker::close() {
-        TrackerBase::close();
-        if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
-            m_runState = Executing;
-    }
-
-} // namespace TestCaseTracking
-
-using TestCaseTracking::ITracker;
-using TestCaseTracking::TrackerContext;
-using TestCaseTracking::SectionTracker;
-using TestCaseTracking::IndexTracker;
-
-} // namespace Catch
-
-#if defined(__clang__)
-#    pragma clang diagnostic pop
-#endif
-// end catch_test_case_tracker.cpp
-// start catch_test_registry.cpp
-
-namespace Catch {
-
-    auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker* {
-        return new(std::nothrow) TestInvokerAsFunction( testAsFunction );
-    }
-
-    NameAndTags::NameAndTags( StringRef const& name_ , StringRef const& tags_ ) noexcept : name( name_ ), tags( tags_ ) {}
-
-    AutoReg::AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept {
-        try {
-            getMutableRegistryHub()
-                    .registerTest(
-                        makeTestCase(
-                            invoker,
-                            extractClassName( classOrMethod ),
-                            nameAndTags,
-                            lineInfo));
-        } catch (...) {
-            // Do not throw when constructing global objects, instead register the exception to be processed later
-            getMutableRegistryHub().registerStartupException();
-        }
-    }
-
-    AutoReg::~AutoReg() = default;
-}
-// end catch_test_registry.cpp
-// start catch_test_spec.cpp
-
-#include <algorithm>
-#include <string>
-#include <vector>
-#include <memory>
-
-namespace Catch {
-
-    TestSpec::Pattern::~Pattern() = default;
-    TestSpec::NamePattern::~NamePattern() = default;
-    TestSpec::TagPattern::~TagPattern() = default;
-    TestSpec::ExcludedPattern::~ExcludedPattern() = default;
-
-    TestSpec::NamePattern::NamePattern( std::string const& name )
-    : m_wildcardPattern( toLower( name ), CaseSensitive::No )
-    {}
-    bool TestSpec::NamePattern::matches( TestCaseInfo const& testCase ) const {
-        return m_wildcardPattern.matches( toLower( testCase.name ) );
-    }
-
-    TestSpec::TagPattern::TagPattern( std::string const& tag ) : m_tag( toLower( tag ) ) {}
-    bool TestSpec::TagPattern::matches( TestCaseInfo const& testCase ) const {
-        return std::find(begin(testCase.lcaseTags),
-                         end(testCase.lcaseTags),
-                         m_tag) != end(testCase.lcaseTags);
-    }
-
-    TestSpec::ExcludedPattern::ExcludedPattern( PatternPtr const& underlyingPattern ) : m_underlyingPattern( underlyingPattern ) {}
-    bool TestSpec::ExcludedPattern::matches( TestCaseInfo const& testCase ) const { return !m_underlyingPattern->matches( testCase ); }
-
-    bool TestSpec::Filter::matches( TestCaseInfo const& testCase ) const {
-        // All patterns in a filter must match for the filter to be a match
-        for( auto const& pattern : m_patterns ) {
-            if( !pattern->matches( testCase ) )
-                return false;
-        }
-        return true;
-    }
-
-    bool TestSpec::hasFilters() const {
-        return !m_filters.empty();
-    }
-    bool TestSpec::matches( TestCaseInfo const& testCase ) const {
-        // A TestSpec matches if any filter matches
-        for( auto const& filter : m_filters )
-            if( filter.matches( testCase ) )
-                return true;
-        return false;
-    }
-}
-// end catch_test_spec.cpp
-// start catch_test_spec_parser.cpp
-
-namespace Catch {
-
-    TestSpecParser::TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}
-
-    TestSpecParser& TestSpecParser::parse( std::string const& arg ) {
-        m_mode = None;
-        m_exclusion = false;
-        m_start = std::string::npos;
-        m_arg = m_tagAliases->expandAliases( arg );
-        m_escapeChars.clear();
-        for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
-            visitChar( m_arg[m_pos] );
-        if( m_mode == Name )
-            addPattern<TestSpec::NamePattern>();
-        return *this;
-    }
-    TestSpec TestSpecParser::testSpec() {
-        addFilter();
-        return m_testSpec;
-    }
-
-    void TestSpecParser::visitChar( char c ) {
-        if( m_mode == None ) {
-            switch( c ) {
-            case ' ': return;
-            case '~': m_exclusion = true; return;
-            case '[': return startNewMode( Tag, ++m_pos );
-            case '"': return startNewMode( QuotedName, ++m_pos );
-            case '\\': return escape();
-            default: startNewMode( Name, m_pos ); break;
-            }
-        }
-        if( m_mode == Name ) {
-            if( c == ',' ) {
-                addPattern<TestSpec::NamePattern>();
-                addFilter();
-            }
-            else if( c == '[' ) {
-                if( subString() == "exclude:" )
-                    m_exclusion = true;
-                else
-                    addPattern<TestSpec::NamePattern>();
-                startNewMode( Tag, ++m_pos );
-            }
-            else if( c == '\\' )
-                escape();
-        }
-        else if( m_mode == EscapedName )
-            m_mode = Name;
-        else if( m_mode == QuotedName && c == '"' )
-            addPattern<TestSpec::NamePattern>();
-        else if( m_mode == Tag && c == ']' )
-            addPattern<TestSpec::TagPattern>();
-    }
-    void TestSpecParser::startNewMode( Mode mode, std::size_t start ) {
-        m_mode = mode;
-        m_start = start;
-    }
-    void TestSpecParser::escape() {
-        if( m_mode == None )
-            m_start = m_pos;
-        m_mode = EscapedName;
-        m_escapeChars.push_back( m_pos );
-    }
-    std::string TestSpecParser::subString() const { return m_arg.substr( m_start, m_pos - m_start ); }
-
-    void TestSpecParser::addFilter() {
-        if( !m_currentFilter.m_patterns.empty() ) {
-            m_testSpec.m_filters.push_back( m_currentFilter );
-            m_currentFilter = TestSpec::Filter();
-        }
-    }
-
-    TestSpec parseTestSpec( std::string const& arg ) {
-        return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
-    }
-
-} // namespace Catch
-// end catch_test_spec_parser.cpp
-// start catch_timer.cpp
-
-#include <chrono>
-
-static const uint64_t nanosecondsInSecond = 1000000000;
-
-namespace Catch {
-
-    auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
-        return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
-    }
-
-    auto estimateClockResolution() -> uint64_t {
-        uint64_t sum = 0;
-        static const uint64_t iterations = 1000000;
-
-        auto startTime = getCurrentNanosecondsSinceEpoch();
-
-        for( std::size_t i = 0; i < iterations; ++i ) {
-
-            uint64_t ticks;
-            uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
-            do {
-                ticks = getCurrentNanosecondsSinceEpoch();
-            } while( ticks == baseTicks );
-
-            auto delta = ticks - baseTicks;
-            sum += delta;
-
-            // If we have been calibrating for over 3 seconds -- the clock
-            // is terrible and we should move on.
-            // TBD: How to signal that the measured resolution is probably wrong?
-            if (ticks > startTime + 3 * nanosecondsInSecond) {
-                return sum / i;
-            }
-        }
-
-        // We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
-        // - and potentially do more iterations if there's a high variance.
-        return sum/iterations;
-    }
-    auto getEstimatedClockResolution() -> uint64_t {
-        static auto s_resolution = estimateClockResolution();
-        return s_resolution;
-    }
-
-    void Timer::start() {
-       m_nanoseconds = getCurrentNanosecondsSinceEpoch();
-    }
-    auto Timer::getElapsedNanoseconds() const -> uint64_t {
-        return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
-    }
-    auto Timer::getElapsedMicroseconds() const -> uint64_t {
-        return getElapsedNanoseconds()/1000;
-    }
-    auto Timer::getElapsedMilliseconds() const -> unsigned int {
-        return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
-    }
-    auto Timer::getElapsedSeconds() const -> double {
-        return getElapsedMicroseconds()/1000000.0;
-    }
-
-} // namespace Catch
-// end catch_timer.cpp
-// start catch_tostring.cpp
-
-#if defined(__clang__)
-#    pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wexit-time-destructors"
-#    pragma clang diagnostic ignored "-Wglobal-constructors"
-#endif
-
-// Enable specific decls locally
-#if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
-#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
-#endif
-
-#include <cmath>
-#include <iomanip>
-
-namespace Catch {
-
-namespace Detail {
-
-    const std::string unprintableString = "{?}";
-
-    namespace {
-        const int hexThreshold = 255;
-
-        struct Endianness {
-            enum Arch { Big, Little };
-
-            static Arch which() {
-                union _{
-                    int asInt;
-                    char asChar[sizeof (int)];
-                } u;
-
-                u.asInt = 1;
-                return ( u.asChar[sizeof(int)-1] == 1 ) ? Big : Little;
-            }
-        };
-    }
-
-    std::string rawMemoryToString( const void *object, std::size_t size ) {
-        // Reverse order for little endian architectures
-        int i = 0, end = static_cast<int>( size ), inc = 1;
-        if( Endianness::which() == Endianness::Little ) {
-            i = end-1;
-            end = inc = -1;
-        }
-
-        unsigned char const *bytes = static_cast<unsigned char const *>(object);
-        ReusableStringStream rss;
-        rss << "0x" << std::setfill('0') << std::hex;
-        for( ; i != end; i += inc )
-             rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
-       return rss.str();
-    }
-}
-
-template<typename T>
-std::string fpToString( T value, int precision ) {
-    if (std::isnan(value)) {
-        return "nan";
-    }
-
-    ReusableStringStream rss;
-    rss << std::setprecision( precision )
-        << std::fixed
-        << value;
-    std::string d = rss.str();
-    std::size_t i = d.find_last_not_of( '0' );
-    if( i != std::string::npos && i != d.size()-1 ) {
-        if( d[i] == '.' )
-            i++;
-        d = d.substr( 0, i+1 );
-    }
-    return d;
-}
-
-//// ======================================================= ////
-//
-//   Out-of-line defs for full specialization of StringMaker
-//
-//// ======================================================= ////
-
-std::string StringMaker<std::string>::convert(const std::string& str) {
-    if (!getCurrentContext().getConfig()->showInvisibles()) {
-        return '"' + str + '"';
-    }
-
-    std::string s("\"");
-    for (char c : str) {
-        switch (c) {
-        case '\n':
-            s.append("\\n");
-            break;
-        case '\t':
-            s.append("\\t");
-            break;
-        default:
-            s.push_back(c);
-            break;
-        }
-    }
-    s.append("\"");
-    return s;
-}
-
-#ifdef CATCH_CONFIG_WCHAR
-std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
-    std::string s;
-    s.reserve(wstr.size());
-    for (auto c : wstr) {
-        s += (c <= 0xff) ? static_cast<char>(c) : '?';
-    }
-    return ::Catch::Detail::stringify(s);
-}
-#endif
-
-std::string StringMaker<char const*>::convert(char const* str) {
-    if (str) {
-        return ::Catch::Detail::stringify(std::string{ str });
-    } else {
-        return{ "{null string}" };
-    }
-}
-std::string StringMaker<char*>::convert(char* str) {
-    if (str) {
-        return ::Catch::Detail::stringify(std::string{ str });
-    } else {
-        return{ "{null string}" };
-    }
-}
-#ifdef CATCH_CONFIG_WCHAR
-std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
-    if (str) {
-        return ::Catch::Detail::stringify(std::wstring{ str });
-    } else {
-        return{ "{null string}" };
-    }
-}
-std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
-    if (str) {
-        return ::Catch::Detail::stringify(std::wstring{ str });
-    } else {
-        return{ "{null string}" };
-    }
-}
-#endif
-
-std::string StringMaker<int>::convert(int value) {
-    return ::Catch::Detail::stringify(static_cast<long long>(value));
-}
-std::string StringMaker<long>::convert(long value) {
-    return ::Catch::Detail::stringify(static_cast<long long>(value));
-}
-std::string StringMaker<long long>::convert(long long value) {
-    ReusableStringStream rss;
-    rss << value;
-    if (value > Detail::hexThreshold) {
-        rss << " (0x" << std::hex << value << ')';
-    }
-    return rss.str();
-}
-
-std::string StringMaker<unsigned int>::convert(unsigned int value) {
-    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
-}
-std::string StringMaker<unsigned long>::convert(unsigned long value) {
-    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
-}
-std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
-    ReusableStringStream rss;
-    rss << value;
-    if (value > Detail::hexThreshold) {
-        rss << " (0x" << std::hex << value << ')';
-    }
-    return rss.str();
-}
-
-std::string StringMaker<bool>::convert(bool b) {
-    return b ? "true" : "false";
-}
-
-std::string StringMaker<char>::convert(char value) {
-    if (value == '\r') {
-        return "'\\r'";
-    } else if (value == '\f') {
-        return "'\\f'";
-    } else if (value == '\n') {
-        return "'\\n'";
-    } else if (value == '\t') {
-        return "'\\t'";
-    } else if ('\0' <= value && value < ' ') {
-        return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
-    } else {
-        char chstr[] = "' '";
-        chstr[1] = value;
-        return chstr;
-    }
-}
-std::string StringMaker<signed char>::convert(signed char c) {
-    return ::Catch::Detail::stringify(static_cast<char>(c));
-}
-std::string StringMaker<unsigned char>::convert(unsigned char c) {
-    return ::Catch::Detail::stringify(static_cast<char>(c));
-}
-
-std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
-    return "nullptr";
-}
-
-std::string StringMaker<float>::convert(float value) {
-    return fpToString(value, 5) + 'f';
-}
-std::string StringMaker<double>::convert(double value) {
-    return fpToString(value, 10);
-}
-
-std::string ratio_string<std::atto>::symbol() { return "a"; }
-std::string ratio_string<std::femto>::symbol() { return "f"; }
-std::string  ratio_string<std::pico>::symbol() { return "p"; }
-std::string  ratio_string<std::nano>::symbol() { return "n"; }
-std::string ratio_string<std::micro>::symbol() { return "u"; }
-std::string ratio_string<std::milli>::symbol() { return "m"; }
-
-} // end namespace Catch
-
-#if defined(__clang__)
-#    pragma clang diagnostic pop
-#endif
-
-// end catch_tostring.cpp
-// start catch_totals.cpp
-
-namespace Catch {
-
-    Counts Counts::operator - ( Counts const& other ) const {
-        Counts diff;
-        diff.passed = passed - other.passed;
-        diff.failed = failed - other.failed;
-        diff.failedButOk = failedButOk - other.failedButOk;
-        return diff;
-    }
-
-    Counts& Counts::operator += ( Counts const& other ) {
-        passed += other.passed;
-        failed += other.failed;
-        failedButOk += other.failedButOk;
-        return *this;
-    }
-
-    std::size_t Counts::total() const {
-        return passed + failed + failedButOk;
-    }
-    bool Counts::allPassed() const {
-        return failed == 0 && failedButOk == 0;
-    }
-    bool Counts::allOk() const {
-        return failed == 0;
-    }
-
-    Totals Totals::operator - ( Totals const& other ) const {
-        Totals diff;
-        diff.assertions = assertions - other.assertions;
-        diff.testCases = testCases - other.testCases;
-        return diff;
-    }
-
-    Totals& Totals::operator += ( Totals const& other ) {
-        assertions += other.assertions;
-        testCases += other.testCases;
-        return *this;
-    }
-
-    Totals Totals::delta( Totals const& prevTotals ) const {
-        Totals diff = *this - prevTotals;
-        if( diff.assertions.failed > 0 )
-            ++diff.testCases.failed;
-        else if( diff.assertions.failedButOk > 0 )
-            ++diff.testCases.failedButOk;
-        else
-            ++diff.testCases.passed;
-        return diff;
-    }
-
-}
-// end catch_totals.cpp
-// start catch_uncaught_exceptions.cpp
-
-#include <exception>
-
-namespace Catch {
-    bool uncaught_exceptions() {
-#if defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
-        return std::uncaught_exceptions() > 0;
-#else
-        return std::uncaught_exception();
-#endif
-  }
-} // end namespace Catch
-// end catch_uncaught_exceptions.cpp
-// start catch_version.cpp
-
-#include <ostream>
-
-namespace Catch {
-
-    Version::Version
-        (   unsigned int _majorVersion,
-            unsigned int _minorVersion,
-            unsigned int _patchNumber,
-            char const * const _branchName,
-            unsigned int _buildNumber )
-    :   majorVersion( _majorVersion ),
-        minorVersion( _minorVersion ),
-        patchNumber( _patchNumber ),
-        branchName( _branchName ),
-        buildNumber( _buildNumber )
-    {}
-
-    std::ostream& operator << ( std::ostream& os, Version const& version ) {
-        os  << version.majorVersion << '.'
-            << version.minorVersion << '.'
-            << version.patchNumber;
-        // branchName is never null -> 0th char is \0 if it is empty
-        if (version.branchName[0]) {
-            os << '-' << version.branchName
-               << '.' << version.buildNumber;
-        }
-        return os;
-    }
-
-    Version const& libraryVersion() {
-        static Version version( 2, 2, 3, "", 0 );
-        return version;
-    }
-
-}
-// end catch_version.cpp
-// start catch_wildcard_pattern.cpp
-
-#include <sstream>
-
-namespace Catch {
-
-    WildcardPattern::WildcardPattern( std::string const& pattern,
-                                      CaseSensitive::Choice caseSensitivity )
-    :   m_caseSensitivity( caseSensitivity ),
-        m_pattern( adjustCase( pattern ) )
-    {
-        if( startsWith( m_pattern, '*' ) ) {
-            m_pattern = m_pattern.substr( 1 );
-            m_wildcard = WildcardAtStart;
-        }
-        if( endsWith( m_pattern, '*' ) ) {
-            m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
-            m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
-        }
-    }
-
-    bool WildcardPattern::matches( std::string const& str ) const {
-        switch( m_wildcard ) {
-            case NoWildcard:
-                return m_pattern == adjustCase( str );
-            case WildcardAtStart:
-                return endsWith( adjustCase( str ), m_pattern );
-            case WildcardAtEnd:
-                return startsWith( adjustCase( str ), m_pattern );
-            case WildcardAtBothEnds:
-                return contains( adjustCase( str ), m_pattern );
-            default:
-                CATCH_INTERNAL_ERROR( "Unknown enum" );
-        }
-    }
-
-    std::string WildcardPattern::adjustCase( std::string const& str ) const {
-        return m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str;
-    }
-}
-// end catch_wildcard_pattern.cpp
-// start catch_xmlwriter.cpp
-
-#include <iomanip>
-
-using uchar = unsigned char;
-
-namespace Catch {
-
-namespace {
-
-    size_t trailingBytes(unsigned char c) {
-        if ((c & 0xE0) == 0xC0) {
-            return 2;
-        }
-        if ((c & 0xF0) == 0xE0) {
-            return 3;
-        }
-        if ((c & 0xF8) == 0xF0) {
-            return 4;
-        }
-        CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
-    }
-
-    uint32_t headerValue(unsigned char c) {
-        if ((c & 0xE0) == 0xC0) {
-            return c & 0x1F;
-        }
-        if ((c & 0xF0) == 0xE0) {
-            return c & 0x0F;
-        }
-        if ((c & 0xF8) == 0xF0) {
-            return c & 0x07;
-        }
-        CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
-    }
-
-    void hexEscapeChar(std::ostream& os, unsigned char c) {
-        os << "\\x"
-            << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
-            << static_cast<int>(c);
-    }
-
-} // anonymous namespace
-
-    XmlEncode::XmlEncode( std::string const& str, ForWhat forWhat )
-    :   m_str( str ),
-        m_forWhat( forWhat )
-    {}
-
-    void XmlEncode::encodeTo( std::ostream& os ) const {
-        // Apostrophe escaping not necessary if we always use " to write attributes
-        // (see: http://www.w3.org/TR/xml/#syntax)
-
-        for( std::size_t idx = 0; idx < m_str.size(); ++ idx ) {
-            uchar c = m_str[idx];
-            switch (c) {
-            case '<':   os << "&lt;"; break;
-            case '&':   os << "&amp;"; break;
-
-            case '>':
-                // See: http://www.w3.org/TR/xml/#syntax
-                if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
-                    os << "&gt;";
-                else
-                    os << c;
-                break;
-
-            case '\"':
-                if (m_forWhat == ForAttributes)
-                    os << "&quot;";
-                else
-                    os << c;
-                break;
-
-            default:
-                // Check for control characters and invalid utf-8
-
-                // Escape control characters in standard ascii
-                // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
-                if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
-                    hexEscapeChar(os, c);
-                    break;
-                }
-
-                // Plain ASCII: Write it to stream
-                if (c < 0x7F) {
-                    os << c;
-                    break;
-                }
-
-                // UTF-8 territory
-                // Check if the encoding is valid and if it is not, hex escape bytes.
-                // Important: We do not check the exact decoded values for validity, only the encoding format
-                // First check that this bytes is a valid lead byte:
-                // This means that it is not encoded as 1111 1XXX
-                // Or as 10XX XXXX
-                if (c <  0xC0 ||
-                    c >= 0xF8) {
-                    hexEscapeChar(os, c);
-                    break;
-                }
-
-                auto encBytes = trailingBytes(c);
-                // Are there enough bytes left to avoid accessing out-of-bounds memory?
-                if (idx + encBytes - 1 >= m_str.size()) {
-                    hexEscapeChar(os, c);
-                    break;
-                }
-                // The header is valid, check data
-                // The next encBytes bytes must together be a valid utf-8
-                // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
-                bool valid = true;
-                uint32_t value = headerValue(c);
-                for (std::size_t n = 1; n < encBytes; ++n) {
-                    uchar nc = m_str[idx + n];
-                    valid &= ((nc & 0xC0) == 0x80);
-                    value = (value << 6) | (nc & 0x3F);
-                }
-
-                if (
-                    // Wrong bit pattern of following bytes
-                    (!valid) ||
-                    // Overlong encodings
-                    (value < 0x80) ||
-                    (0x80 <= value && value < 0x800   && encBytes > 2) ||
-                    (0x800 < value && value < 0x10000 && encBytes > 3) ||
-                    // Encoded value out of range
-                    (value >= 0x110000)
-                    ) {
-                    hexEscapeChar(os, c);
-                    break;
-                }
-
-                // If we got here, this is in fact a valid(ish) utf-8 sequence
-                for (std::size_t n = 0; n < encBytes; ++n) {
-                    os << m_str[idx + n];
-                }
-                idx += encBytes - 1;
-                break;
-            }
-        }
-    }
-
-    std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
-        xmlEncode.encodeTo( os );
-        return os;
-    }
-
-    XmlWriter::ScopedElement::ScopedElement( XmlWriter* writer )
-    :   m_writer( writer )
-    {}
-
-    XmlWriter::ScopedElement::ScopedElement( ScopedElement&& other ) noexcept
-    :   m_writer( other.m_writer ){
-        other.m_writer = nullptr;
-    }
-    XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=( ScopedElement&& other ) noexcept {
-        if ( m_writer ) {
-            m_writer->endElement();
-        }
-        m_writer = other.m_writer;
-        other.m_writer = nullptr;
-        return *this;
-    }
-
-    XmlWriter::ScopedElement::~ScopedElement() {
-        if( m_writer )
-            m_writer->endElement();
-    }
-
-    XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText( std::string const& text, bool indent ) {
-        m_writer->writeText( text, indent );
-        return *this;
-    }
-
-    XmlWriter::XmlWriter( std::ostream& os ) : m_os( os )
-    {
-        writeDeclaration();
-    }
-
-    XmlWriter::~XmlWriter() {
-        while( !m_tags.empty() )
-            endElement();
-    }
-
-    XmlWriter& XmlWriter::startElement( std::string const& name ) {
-        ensureTagClosed();
-        newlineIfNecessary();
-        m_os << m_indent << '<' << name;
-        m_tags.push_back( name );
-        m_indent += "  ";
-        m_tagIsOpen = true;
-        return *this;
-    }
-
-    XmlWriter::ScopedElement XmlWriter::scopedElement( std::string const& name ) {
-        ScopedElement scoped( this );
-        startElement( name );
-        return scoped;
-    }
-
-    XmlWriter& XmlWriter::endElement() {
-        newlineIfNecessary();
-        m_indent = m_indent.substr( 0, m_indent.size()-2 );
-        if( m_tagIsOpen ) {
-            m_os << "/>";
-            m_tagIsOpen = false;
-        }
-        else {
-            m_os << m_indent << "</" << m_tags.back() << ">";
-        }
-        m_os << std::endl;
-        m_tags.pop_back();
-        return *this;
-    }
-
-    XmlWriter& XmlWriter::writeAttribute( std::string const& name, std::string const& attribute ) {
-        if( !name.empty() && !attribute.empty() )
-            m_os << ' ' << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << '"';
-        return *this;
-    }
-
-    XmlWriter& XmlWriter::writeAttribute( std::string const& name, bool attribute ) {
-        m_os << ' ' << name << "=\"" << ( attribute ? "true" : "false" ) << '"';
-        return *this;
-    }
-
-    XmlWriter& XmlWriter::writeText( std::string const& text, bool indent ) {
-        if( !text.empty() ){
-            bool tagWasOpen = m_tagIsOpen;
-            ensureTagClosed();
-            if( tagWasOpen && indent )
-                m_os << m_indent;
-            m_os << XmlEncode( text );
-            m_needsNewline = true;
-        }
-        return *this;
-    }
-
-    XmlWriter& XmlWriter::writeComment( std::string const& text ) {
-        ensureTagClosed();
-        m_os << m_indent << "<!--" << text << "-->";
-        m_needsNewline = true;
-        return *this;
-    }
-
-    void XmlWriter::writeStylesheetRef( std::string const& url ) {
-        m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
-    }
-
-    XmlWriter& XmlWriter::writeBlankLine() {
-        ensureTagClosed();
-        m_os << '\n';
-        return *this;
-    }
-
-    void XmlWriter::ensureTagClosed() {
-        if( m_tagIsOpen ) {
-            m_os << ">" << std::endl;
-            m_tagIsOpen = false;
-        }
-    }
-
-    void XmlWriter::writeDeclaration() {
-        m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
-    }
-
-    void XmlWriter::newlineIfNecessary() {
-        if( m_needsNewline ) {
-            m_os << std::endl;
-            m_needsNewline = false;
-        }
-    }
-}
-// end catch_xmlwriter.cpp
-// start catch_reporter_bases.cpp
-
-#include <cstring>
-#include <cfloat>
-#include <cstdio>
-#include <cassert>
-#include <memory>
-
-namespace Catch {
-    void prepareExpandedExpression(AssertionResult& result) {
-        result.getExpandedExpression();
-    }
-
-    // Because formatting using c++ streams is stateful, drop down to C is required
-    // Alternatively we could use stringstream, but its performance is... not good.
-    std::string getFormattedDuration( double duration ) {
-        // Max exponent + 1 is required to represent the whole part
-        // + 1 for decimal point
-        // + 3 for the 3 decimal places
-        // + 1 for null terminator
-        const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
-        char buffer[maxDoubleSize];
-
-        // Save previous errno, to prevent sprintf from overwriting it
-        ErrnoGuard guard;
-#ifdef _MSC_VER
-        sprintf_s(buffer, "%.3f", duration);
-#else
-        sprintf(buffer, "%.3f", duration);
-#endif
-        return std::string(buffer);
-    }
-
-    TestEventListenerBase::TestEventListenerBase(ReporterConfig const & _config)
-        :StreamingReporterBase(_config) {}
-
-    void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}
-
-    bool TestEventListenerBase::assertionEnded(AssertionStats const &) {
-        return false;
-    }
-
-} // end namespace Catch
-// end catch_reporter_bases.cpp
-// start catch_reporter_compact.cpp
-
-namespace {
-
-#ifdef CATCH_PLATFORM_MAC
-    const char* failedString() { return "FAILED"; }
-    const char* passedString() { return "PASSED"; }
-#else
-    const char* failedString() { return "failed"; }
-    const char* passedString() { return "passed"; }
-#endif
-
-    // Colour::LightGrey
-    Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }
-
-    std::string bothOrAll( std::size_t count ) {
-        return count == 1 ? std::string() :
-               count == 2 ? "both " : "all " ;
-    }
-
-} // anon namespace
-
-namespace Catch {
-namespace {
-// Colour, message variants:
-// - white: No tests ran.
-// -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
-// - white: Passed [both/all] N test cases (no assertions).
-// -   red: Failed N tests cases, failed M assertions.
-// - green: Passed [both/all] N tests cases with M assertions.
-void printTotals(std::ostream& out, const Totals& totals) {
-    if (totals.testCases.total() == 0) {
-        out << "No tests ran.";
-    } else if (totals.testCases.failed == totals.testCases.total()) {
-        Colour colour(Colour::ResultError);
-        const std::string qualify_assertions_failed =
-            totals.assertions.failed == totals.assertions.total() ?
-            bothOrAll(totals.assertions.failed) : std::string();
-        out <<
-            "Failed " << bothOrAll(totals.testCases.failed)
-            << pluralise(totals.testCases.failed, "test case") << ", "
-            "failed " << qualify_assertions_failed <<
-            pluralise(totals.assertions.failed, "assertion") << '.';
-    } else if (totals.assertions.total() == 0) {
-        out <<
-            "Passed " << bothOrAll(totals.testCases.total())
-            << pluralise(totals.testCases.total(), "test case")
-            << " (no assertions).";
-    } else if (totals.assertions.failed) {
-        Colour colour(Colour::ResultError);
-        out <<
-            "Failed " << pluralise(totals.testCases.failed, "test case") << ", "
-            "failed " << pluralise(totals.assertions.failed, "assertion") << '.';
-    } else {
-        Colour colour(Colour::ResultSuccess);
-        out <<
-            "Passed " << bothOrAll(totals.testCases.passed)
-            << pluralise(totals.testCases.passed, "test case") <<
-            " with " << pluralise(totals.assertions.passed, "assertion") << '.';
-    }
-}
-
-// Implementation of CompactReporter formatting
-class AssertionPrinter {
-public:
-    AssertionPrinter& operator= (AssertionPrinter const&) = delete;
-    AssertionPrinter(AssertionPrinter const&) = delete;
-    AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
-        : stream(_stream)
-        , result(_stats.assertionResult)
-        , messages(_stats.infoMessages)
-        , itMessage(_stats.infoMessages.begin())
-        , printInfoMessages(_printInfoMessages) {}
-
-    void print() {
-        printSourceInfo();
-
-        itMessage = messages.begin();
-
-        switch (result.getResultType()) {
-        case ResultWas::Ok:
-            printResultType(Colour::ResultSuccess, passedString());
-            printOriginalExpression();
-            printReconstructedExpression();
-            if (!result.hasExpression())
-                printRemainingMessages(Colour::None);
-            else
-                printRemainingMessages();
-            break;
-        case ResultWas::ExpressionFailed:
-            if (result.isOk())
-                printResultType(Colour::ResultSuccess, failedString() + std::string(" - but was ok"));
-            else
-                printResultType(Colour::Error, failedString());
-            printOriginalExpression();
-            printReconstructedExpression();
-            printRemainingMessages();
-            break;
-        case ResultWas::ThrewException:
-            printResultType(Colour::Error, failedString());
-            printIssue("unexpected exception with message:");
-            printMessage();
-            printExpressionWas();
-            printRemainingMessages();
-            break;
-        case ResultWas::FatalErrorCondition:
-            printResultType(Colour::Error, failedString());
-            printIssue("fatal error condition with message:");
-            printMessage();
-            printExpressionWas();
-            printRemainingMessages();
-            break;
-        case ResultWas::DidntThrowException:
-            printResultType(Colour::Error, failedString());
-            printIssue("expected exception, got none");
-            printExpressionWas();
-            printRemainingMessages();
-            break;
-        case ResultWas::Info:
-            printResultType(Colour::None, "info");
-            printMessage();
-            printRemainingMessages();
-            break;
-        case ResultWas::Warning:
-            printResultType(Colour::None, "warning");
-            printMessage();
-            printRemainingMessages();
-            break;
-        case ResultWas::ExplicitFailure:
-            printResultType(Colour::Error, failedString());
-            printIssue("explicitly");
-            printRemainingMessages(Colour::None);
-            break;
-            // These cases are here to prevent compiler warnings
-        case ResultWas::Unknown:
-        case ResultWas::FailureBit:
-        case ResultWas::Exception:
-            printResultType(Colour::Error, "** internal error **");
-            break;
-        }
-    }
-
-private:
-    void printSourceInfo() const {
-        Colour colourGuard(Colour::FileName);
-        stream << result.getSourceInfo() << ':';
-    }
-
-    void printResultType(Colour::Code colour, std::string const& passOrFail) const {
-        if (!passOrFail.empty()) {
-            {
-                Colour colourGuard(colour);
-                stream << ' ' << passOrFail;
-            }
-            stream << ':';
-        }
-    }
-
-    void printIssue(std::string const& issue) const {
-        stream << ' ' << issue;
-    }
-
-    void printExpressionWas() {
-        if (result.hasExpression()) {
-            stream << ';';
-            {
-                Colour colour(dimColour());
-                stream << " expression was:";
-            }
-            printOriginalExpression();
-        }
-    }
-
-    void printOriginalExpression() const {
-        if (result.hasExpression()) {
-            stream << ' ' << result.getExpression();
-        }
-    }
-
-    void printReconstructedExpression() const {
-        if (result.hasExpandedExpression()) {
-            {
-                Colour colour(dimColour());
-                stream << " for: ";
-            }
-            stream << result.getExpandedExpression();
-        }
-    }
-
-    void printMessage() {
-        if (itMessage != messages.end()) {
-            stream << " '" << itMessage->message << '\'';
-            ++itMessage;
-        }
-    }
-
-    void printRemainingMessages(Colour::Code colour = dimColour()) {
-        if (itMessage == messages.end())
-            return;
-
-        // using messages.end() directly yields (or auto) compilation error:
-        std::vector<MessageInfo>::const_iterator itEnd = messages.end();
-        const std::size_t N = static_cast<std::size_t>(std::distance(itMessage, itEnd));
-
-        {
-            Colour colourGuard(colour);
-            stream << " with " << pluralise(N, "message") << ':';
-        }
-
-        for (; itMessage != itEnd; ) {
-            // If this assertion is a warning ignore any INFO messages
-            if (printInfoMessages || itMessage->type != ResultWas::Info) {
-                stream << " '" << itMessage->message << '\'';
-                if (++itMessage != itEnd) {
-                    Colour colourGuard(dimColour());
-                    stream << " and";
-                }
-            }
-        }
-    }
-
-private:
-    std::ostream& stream;
-    AssertionResult const& result;
-    std::vector<MessageInfo> messages;
-    std::vector<MessageInfo>::const_iterator itMessage;
-    bool printInfoMessages;
-};
-
-} // anon namespace
-
-        std::string CompactReporter::getDescription() {
-            return "Reports test results on a single line, suitable for IDEs";
-        }
-
-        ReporterPreferences CompactReporter::getPreferences() const {
-            ReporterPreferences prefs;
-            prefs.shouldRedirectStdOut = false;
-            return prefs;
-        }
-
-        void CompactReporter::noMatchingTestCases( std::string const& spec ) {
-            stream << "No test cases matched '" << spec << '\'' << std::endl;
-        }
-
-        void CompactReporter::assertionStarting( AssertionInfo const& ) {}
-
-        bool CompactReporter::assertionEnded( AssertionStats const& _assertionStats ) {
-            AssertionResult const& result = _assertionStats.assertionResult;
-
-            bool printInfoMessages = true;
-
-            // Drop out if result was successful and we're not printing those
-            if( !m_config->includeSuccessfulResults() && result.isOk() ) {
-                if( result.getResultType() != ResultWas::Warning )
-                    return false;
-                printInfoMessages = false;
-            }
-
-            AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
-            printer.print();
-
-            stream << std::endl;
-            return true;
-        }
-
-        void CompactReporter::sectionEnded(SectionStats const& _sectionStats) {
-            if (m_config->showDurations() == ShowDurations::Always) {
-                stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
-            }
-        }
-
-        void CompactReporter::testRunEnded( TestRunStats const& _testRunStats ) {
-            printTotals( stream, _testRunStats.totals );
-            stream << '\n' << std::endl;
-            StreamingReporterBase::testRunEnded( _testRunStats );
-        }
-
-        CompactReporter::~CompactReporter() {}
-
-    CATCH_REGISTER_REPORTER( "compact", CompactReporter )
-
-} // end namespace Catch
-// end catch_reporter_compact.cpp
-// start catch_reporter_console.cpp
-
-#include <cfloat>
-#include <cstdio>
-
-#if defined(_MSC_VER)
-#pragma warning(push)
-#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
- // Note that 4062 (not all labels are handled
- // and default is missing) is enabled
-#endif
-
-namespace Catch {
-
-namespace {
-
-// Formatter impl for ConsoleReporter
-class ConsoleAssertionPrinter {
-public:
-    ConsoleAssertionPrinter& operator= (ConsoleAssertionPrinter const&) = delete;
-    ConsoleAssertionPrinter(ConsoleAssertionPrinter const&) = delete;
-    ConsoleAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
-        : stream(_stream),
-        stats(_stats),
-        result(_stats.assertionResult),
-        colour(Colour::None),
-        message(result.getMessage()),
-        messages(_stats.infoMessages),
-        printInfoMessages(_printInfoMessages) {
-        switch (result.getResultType()) {
-        case ResultWas::Ok:
-            colour = Colour::Success;
-            passOrFail = "PASSED";
-            //if( result.hasMessage() )
-            if (_stats.infoMessages.size() == 1)
-                messageLabel = "with message";
-            if (_stats.infoMessages.size() > 1)
-                messageLabel = "with messages";
-            break;
-        case ResultWas::ExpressionFailed:
-            if (result.isOk()) {
-                colour = Colour::Success;
-                passOrFail = "FAILED - but was ok";
-            } else {
-                colour = Colour::Error;
-                passOrFail = "FAILED";
-            }
-            if (_stats.infoMessages.size() == 1)
-                messageLabel = "with message";
-            if (_stats.infoMessages.size() > 1)
-                messageLabel = "with messages";
-            break;
-        case ResultWas::ThrewException:
-            colour = Colour::Error;
-            passOrFail = "FAILED";
-            messageLabel = "due to unexpected exception with ";
-            if (_stats.infoMessages.size() == 1)
-                messageLabel += "message";
-            if (_stats.infoMessages.size() > 1)
-                messageLabel += "messages";
-            break;
-        case ResultWas::FatalErrorCondition:
-            colour = Colour::Error;
-            passOrFail = "FAILED";
-            messageLabel = "due to a fatal error condition";
-            break;
-        case ResultWas::DidntThrowException:
-            colour = Colour::Error;
-            passOrFail = "FAILED";
-            messageLabel = "because no exception was thrown where one was expected";
-            break;
-        case ResultWas::Info:
-            messageLabel = "info";
-            break;
-        case ResultWas::Warning:
-            messageLabel = "warning";
-            break;
-        case ResultWas::ExplicitFailure:
-            passOrFail = "FAILED";
-            colour = Colour::Error;
-            if (_stats.infoMessages.size() == 1)
-                messageLabel = "explicitly with message";
-            if (_stats.infoMessages.size() > 1)
-                messageLabel = "explicitly with messages";
-            break;
-            // These cases are here to prevent compiler warnings
-        case ResultWas::Unknown:
-        case ResultWas::FailureBit:
-        case ResultWas::Exception:
-            passOrFail = "** internal error **";
-            colour = Colour::Error;
-            break;
-        }
-    }
-
-    void print() const {
-        printSourceInfo();
-        if (stats.totals.assertions.total() > 0) {
-            if (result.isOk())
-                stream << '\n';
-            printResultType();
-            printOriginalExpression();
-            printReconstructedExpression();
-        } else {
-            stream << '\n';
-        }
-        printMessage();
-    }
-
-private:
-    void printResultType() const {
-        if (!passOrFail.empty()) {
-            Colour colourGuard(colour);
-            stream << passOrFail << ":\n";
-        }
-    }
-    void printOriginalExpression() const {
-        if (result.hasExpression()) {
-            Colour colourGuard(Colour::OriginalExpression);
-            stream << "  ";
-            stream << result.getExpressionInMacro();
-            stream << '\n';
-        }
-    }
-    void printReconstructedExpression() const {
-        if (result.hasExpandedExpression()) {
-            stream << "with expansion:\n";
-            Colour colourGuard(Colour::ReconstructedExpression);
-            stream << Column(result.getExpandedExpression()).indent(2) << '\n';
-        }
-    }
-    void printMessage() const {
-        if (!messageLabel.empty())
-            stream << messageLabel << ':' << '\n';
-        for (auto const& msg : messages) {
-            // If this assertion is a warning ignore any INFO messages
-            if (printInfoMessages || msg.type != ResultWas::Info)
-                stream << Column(msg.message).indent(2) << '\n';
-        }
-    }
-    void printSourceInfo() const {
-        Colour colourGuard(Colour::FileName);
-        stream << result.getSourceInfo() << ": ";
-    }
-
-    std::ostream& stream;
-    AssertionStats const& stats;
-    AssertionResult const& result;
-    Colour::Code colour;
-    std::string passOrFail;
-    std::string messageLabel;
-    std::string message;
-    std::vector<MessageInfo> messages;
-    bool printInfoMessages;
-};
-
-std::size_t makeRatio(std::size_t number, std::size_t total) {
-    std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
-    return (ratio == 0 && number > 0) ? 1 : ratio;
-}
-
-std::size_t& findMax(std::size_t& i, std::size_t& j, std::size_t& k) {
-    if (i > j && i > k)
-        return i;
-    else if (j > k)
-        return j;
-    else
-        return k;
-}
-
-struct ColumnInfo {
-    enum Justification { Left, Right };
-    std::string name;
-    int width;
-    Justification justification;
-};
-struct ColumnBreak {};
-struct RowBreak {};
-
-class Duration {
-    enum class Unit {
-        Auto,
-        Nanoseconds,
-        Microseconds,
-        Milliseconds,
-        Seconds,
-        Minutes
-    };
-    static const uint64_t s_nanosecondsInAMicrosecond = 1000;
-    static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
-    static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
-    static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;
-
-    uint64_t m_inNanoseconds;
-    Unit m_units;
-
-public:
-    explicit Duration(uint64_t inNanoseconds, Unit units = Unit::Auto)
-        : m_inNanoseconds(inNanoseconds),
-        m_units(units) {
-        if (m_units == Unit::Auto) {
-            if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
-                m_units = Unit::Nanoseconds;
-            else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
-                m_units = Unit::Microseconds;
-            else if (m_inNanoseconds < s_nanosecondsInASecond)
-                m_units = Unit::Milliseconds;
-            else if (m_inNanoseconds < s_nanosecondsInAMinute)
-                m_units = Unit::Seconds;
-            else
-                m_units = Unit::Minutes;
-        }
-
-    }
-
-    auto value() const -> double {
-        switch (m_units) {
-        case Unit::Microseconds:
-            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
-        case Unit::Milliseconds:
-            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
-        case Unit::Seconds:
-            return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
-        case Unit::Minutes:
-            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
-        default:
-            return static_cast<double>(m_inNanoseconds);
-        }
-    }
-    auto unitsAsString() const -> std::string {
-        switch (m_units) {
-        case Unit::Nanoseconds:
-            return "ns";
-        case Unit::Microseconds:
-            return "µs";
-        case Unit::Milliseconds:
-            return "ms";
-        case Unit::Seconds:
-            return "s";
-        case Unit::Minutes:
-            return "m";
-        default:
-            return "** internal error **";
-        }
-
-    }
-    friend auto operator << (std::ostream& os, Duration const& duration) -> std::ostream& {
-        return os << duration.value() << " " << duration.unitsAsString();
-    }
-};
-} // end anon namespace
-
-class TablePrinter {
-    std::ostream& m_os;
-    std::vector<ColumnInfo> m_columnInfos;
-    std::ostringstream m_oss;
-    int m_currentColumn = -1;
-    bool m_isOpen = false;
-
-public:
-    TablePrinter( std::ostream& os, std::vector<ColumnInfo> columnInfos )
-    :   m_os( os ),
-        m_columnInfos( std::move( columnInfos ) ) {}
-
-    auto columnInfos() const -> std::vector<ColumnInfo> const& {
-        return m_columnInfos;
-    }
-
-    void open() {
-        if (!m_isOpen) {
-            m_isOpen = true;
-            *this << RowBreak();
-            for (auto const& info : m_columnInfos)
-                *this << info.name << ColumnBreak();
-            *this << RowBreak();
-            m_os << Catch::getLineOfChars<'-'>() << "\n";
-        }
-    }
-    void close() {
-        if (m_isOpen) {
-            *this << RowBreak();
-            m_os << std::endl;
-            m_isOpen = false;
-        }
-    }
-
-    template<typename T>
-    friend TablePrinter& operator << (TablePrinter& tp, T const& value) {
-        tp.m_oss << value;
-        return tp;
-    }
-
-    friend TablePrinter& operator << (TablePrinter& tp, ColumnBreak) {
-        auto colStr = tp.m_oss.str();
-        // This takes account of utf8 encodings
-        auto strSize = Catch::StringRef(colStr).numberOfCharacters();
-        tp.m_oss.str("");
-        tp.open();
-        if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
-            tp.m_currentColumn = -1;
-            tp.m_os << "\n";
-        }
-        tp.m_currentColumn++;
-
-        auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
-        auto padding = (strSize + 2 < static_cast<std::size_t>(colInfo.width))
-            ? std::string(colInfo.width - (strSize + 2), ' ')
-            : std::string();
-        if (colInfo.justification == ColumnInfo::Left)
-            tp.m_os << colStr << padding << " ";
-        else
-            tp.m_os << padding << colStr << " ";
-        return tp;
-    }
-
-    friend TablePrinter& operator << (TablePrinter& tp, RowBreak) {
-        if (tp.m_currentColumn > 0) {
-            tp.m_os << "\n";
-            tp.m_currentColumn = -1;
-        }
-        return tp;
-    }
-};
-
-ConsoleReporter::ConsoleReporter(ReporterConfig const& config)
-    : StreamingReporterBase(config),
-    m_tablePrinter(new TablePrinter(config.stream(),
-    {
-        { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32, ColumnInfo::Left },
-        { "iters", 8, ColumnInfo::Right },
-        { "elapsed ns", 14, ColumnInfo::Right },
-        { "average", 14, ColumnInfo::Right }
-    })) {}
-ConsoleReporter::~ConsoleReporter() = default;
-
-std::string ConsoleReporter::getDescription() {
-    return "Reports test results as plain lines of text";
-}
-
-void ConsoleReporter::noMatchingTestCases(std::string const& spec) {
-    stream << "No test cases matched '" << spec << '\'' << std::endl;
-}
-
-void ConsoleReporter::assertionStarting(AssertionInfo const&) {}
-
-bool ConsoleReporter::assertionEnded(AssertionStats const& _assertionStats) {
-    AssertionResult const& result = _assertionStats.assertionResult;
-
-    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
-
-    // Drop out if result was successful but we're not printing them.
-    if (!includeResults && result.getResultType() != ResultWas::Warning)
-        return false;
-
-    lazyPrint();
-
-    ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
-    printer.print();
-    stream << std::endl;
-    return true;
-}
-
-void ConsoleReporter::sectionStarting(SectionInfo const& _sectionInfo) {
-    m_headerPrinted = false;
-    StreamingReporterBase::sectionStarting(_sectionInfo);
-}
-void ConsoleReporter::sectionEnded(SectionStats const& _sectionStats) {
-    m_tablePrinter->close();
-    if (_sectionStats.missingAssertions) {
-        lazyPrint();
-        Colour colour(Colour::ResultError);
-        if (m_sectionStack.size() > 1)
-            stream << "\nNo assertions in section";
-        else
-            stream << "\nNo assertions in test case";
-        stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
-    }
-    if (m_config->showDurations() == ShowDurations::Always) {
-        stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
-    }
-    if (m_headerPrinted) {
-        m_headerPrinted = false;
-    }
-    StreamingReporterBase::sectionEnded(_sectionStats);
-}
-
-void ConsoleReporter::benchmarkStarting(BenchmarkInfo const& info) {
-    lazyPrintWithoutClosingBenchmarkTable();
-
-    auto nameCol = Column( info.name ).width( static_cast<std::size_t>( m_tablePrinter->columnInfos()[0].width - 2 ) );
-
-    bool firstLine = true;
-    for (auto line : nameCol) {
-        if (!firstLine)
-            (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
-        else
-            firstLine = false;
-
-        (*m_tablePrinter) << line << ColumnBreak();
-    }
-}
-void ConsoleReporter::benchmarkEnded(BenchmarkStats const& stats) {
-    Duration average(stats.elapsedTimeInNanoseconds / stats.iterations);
-    (*m_tablePrinter)
-        << stats.iterations << ColumnBreak()
-        << stats.elapsedTimeInNanoseconds << ColumnBreak()
-        << average << ColumnBreak();
-}
-
-void ConsoleReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
-    m_tablePrinter->close();
-    StreamingReporterBase::testCaseEnded(_testCaseStats);
-    m_headerPrinted = false;
-}
-void ConsoleReporter::testGroupEnded(TestGroupStats const& _testGroupStats) {
-    if (currentGroupInfo.used) {
-        printSummaryDivider();
-        stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
-        printTotals(_testGroupStats.totals);
-        stream << '\n' << std::endl;
-    }
-    StreamingReporterBase::testGroupEnded(_testGroupStats);
-}
-void ConsoleReporter::testRunEnded(TestRunStats const& _testRunStats) {
-    printTotalsDivider(_testRunStats.totals);
-    printTotals(_testRunStats.totals);
-    stream << std::endl;
-    StreamingReporterBase::testRunEnded(_testRunStats);
-}
-
-void ConsoleReporter::lazyPrint() {
-
-    m_tablePrinter->close();
-    lazyPrintWithoutClosingBenchmarkTable();
-}
-
-void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {
-
-    if (!currentTestRunInfo.used)
-        lazyPrintRunInfo();
-    if (!currentGroupInfo.used)
-        lazyPrintGroupInfo();
-
-    if (!m_headerPrinted) {
-        printTestCaseAndSectionHeader();
-        m_headerPrinted = true;
-    }
-}
-void ConsoleReporter::lazyPrintRunInfo() {
-    stream << '\n' << getLineOfChars<'~'>() << '\n';
-    Colour colour(Colour::SecondaryText);
-    stream << currentTestRunInfo->name
-        << " is a Catch v" << libraryVersion() << " host application.\n"
-        << "Run with -? for options\n\n";
-
-    if (m_config->rngSeed() != 0)
-        stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";
-
-    currentTestRunInfo.used = true;
-}
-void ConsoleReporter::lazyPrintGroupInfo() {
-    if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1) {
-        printClosedHeader("Group: " + currentGroupInfo->name);
-        currentGroupInfo.used = true;
-    }
-}
-void ConsoleReporter::printTestCaseAndSectionHeader() {
-    assert(!m_sectionStack.empty());
-    printOpenHeader(currentTestCaseInfo->name);
-
-    if (m_sectionStack.size() > 1) {
-        Colour colourGuard(Colour::Headers);
-
-        auto
-            it = m_sectionStack.begin() + 1, // Skip first section (test case)
-            itEnd = m_sectionStack.end();
-        for (; it != itEnd; ++it)
-            printHeaderString(it->name, 2);
-    }
-
-    SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;
-
-    if (!lineInfo.empty()) {
-        stream << getLineOfChars<'-'>() << '\n';
-        Colour colourGuard(Colour::FileName);
-        stream << lineInfo << '\n';
-    }
-    stream << getLineOfChars<'.'>() << '\n' << std::endl;
-}
-
-void ConsoleReporter::printClosedHeader(std::string const& _name) {
-    printOpenHeader(_name);
-    stream << getLineOfChars<'.'>() << '\n';
-}
-void ConsoleReporter::printOpenHeader(std::string const& _name) {
-    stream << getLineOfChars<'-'>() << '\n';
-    {
-        Colour colourGuard(Colour::Headers);
-        printHeaderString(_name);
-    }
-}
-
-// if string has a : in first line will set indent to follow it on
-// subsequent lines
-void ConsoleReporter::printHeaderString(std::string const& _string, std::size_t indent) {
-    std::size_t i = _string.find(": ");
-    if (i != std::string::npos)
-        i += 2;
-    else
-        i = 0;
-    stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
-}
-
-struct SummaryColumn {
-
-    SummaryColumn( std::string _label, Colour::Code _colour )
-    :   label( std::move( _label ) ),
-        colour( _colour ) {}
-    SummaryColumn addRow( std::size_t count ) {
-        ReusableStringStream rss;
-        rss << count;
-        std::string row = rss.str();
-        for (auto& oldRow : rows) {
-            while (oldRow.size() < row.size())
-                oldRow = ' ' + oldRow;
-            while (oldRow.size() > row.size())
-                row = ' ' + row;
-        }
-        rows.push_back(row);
-        return *this;
-    }
-
-    std::string label;
-    Colour::Code colour;
-    std::vector<std::string> rows;
-
-};
-
-void ConsoleReporter::printTotals( Totals const& totals ) {
-    if (totals.testCases.total() == 0) {
-        stream << Colour(Colour::Warning) << "No tests ran\n";
-    } else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
-        stream << Colour(Colour::ResultSuccess) << "All tests passed";
-        stream << " ("
-            << pluralise(totals.assertions.passed, "assertion") << " in "
-            << pluralise(totals.testCases.passed, "test case") << ')'
-            << '\n';
-    } else {
-
-        std::vector<SummaryColumn> columns;
-        columns.push_back(SummaryColumn("", Colour::None)
-                          .addRow(totals.testCases.total())
-                          .addRow(totals.assertions.total()));
-        columns.push_back(SummaryColumn("passed", Colour::Success)
-                          .addRow(totals.testCases.passed)
-                          .addRow(totals.assertions.passed));
-        columns.push_back(SummaryColumn("failed", Colour::ResultError)
-                          .addRow(totals.testCases.failed)
-                          .addRow(totals.assertions.failed));
-        columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
-                          .addRow(totals.testCases.failedButOk)
-                          .addRow(totals.assertions.failedButOk));
-
-        printSummaryRow("test cases", columns, 0);
-        printSummaryRow("assertions", columns, 1);
-    }
-}
-void ConsoleReporter::printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row) {
-    for (auto col : cols) {
-        std::string value = col.rows[row];
-        if (col.label.empty()) {
-            stream << label << ": ";
-            if (value != "0")
-                stream << value;
-            else
-                stream << Colour(Colour::Warning) << "- none -";
-        } else if (value != "0") {
-            stream << Colour(Colour::LightGrey) << " | ";
-            stream << Colour(col.colour)
-                << value << ' ' << col.label;
-        }
-    }
-    stream << '\n';
-}
-
-void ConsoleReporter::printTotalsDivider(Totals const& totals) {
-    if (totals.testCases.total() > 0) {
-        std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
-        std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
-        std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
-        while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
-            findMax(failedRatio, failedButOkRatio, passedRatio)++;
-        while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
-            findMax(failedRatio, failedButOkRatio, passedRatio)--;
-
-        stream << Colour(Colour::Error) << std::string(failedRatio, '=');
-        stream << Colour(Colour::ResultExpectedFailure) << std::string(failedButOkRatio, '=');
-        if (totals.testCases.allPassed())
-            stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
-        else
-            stream << Colour(Colour::Success) << std::string(passedRatio, '=');
-    } else {
-        stream << Colour(Colour::Warning) << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
-    }
-    stream << '\n';
-}
-void ConsoleReporter::printSummaryDivider() {
-    stream << getLineOfChars<'-'>() << '\n';
-}
-
-CATCH_REGISTER_REPORTER("console", ConsoleReporter)
-
-} // end namespace Catch
-
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
-// end catch_reporter_console.cpp
-// start catch_reporter_junit.cpp
-
-#include <cassert>
-#include <sstream>
-#include <ctime>
-#include <algorithm>
-
-namespace Catch {
-
-    namespace {
-        std::string getCurrentTimestamp() {
-            // Beware, this is not reentrant because of backward compatibility issues
-            // Also, UTC only, again because of backward compatibility (%z is C++11)
-            time_t rawtime;
-            std::time(&rawtime);
-            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
-
-#ifdef _MSC_VER
-            std::tm timeInfo = {};
-            gmtime_s(&timeInfo, &rawtime);
-#else
-            std::tm* timeInfo;
-            timeInfo = std::gmtime(&rawtime);
-#endif
-
-            char timeStamp[timeStampSize];
-            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
-
-#ifdef _MSC_VER
-            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
-#else
-            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
-#endif
-            return std::string(timeStamp);
-        }
-
-        std::string fileNameTag(const std::vector<std::string> &tags) {
-            auto it = std::find_if(begin(tags),
-                                   end(tags),
-                                   [] (std::string const& tag) {return tag.front() == '#'; });
-            if (it != tags.end())
-                return it->substr(1);
-            return std::string();
-        }
-    } // anonymous namespace
-
-    JunitReporter::JunitReporter( ReporterConfig const& _config )
-        :   CumulativeReporterBase( _config ),
-            xml( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = true;
-        }
-
-    JunitReporter::~JunitReporter() {}
-
-    std::string JunitReporter::getDescription() {
-        return "Reports test results in an XML format that looks like Ant's junitreport target";
-    }
-
-    void JunitReporter::noMatchingTestCases( std::string const& /*spec*/ ) {}
-
-    void JunitReporter::testRunStarting( TestRunInfo const& runInfo )  {
-        CumulativeReporterBase::testRunStarting( runInfo );
-        xml.startElement( "testsuites" );
-    }
-
-    void JunitReporter::testGroupStarting( GroupInfo const& groupInfo ) {
-        suiteTimer.start();
-        stdOutForSuite.clear();
-        stdErrForSuite.clear();
-        unexpectedExceptions = 0;
-        CumulativeReporterBase::testGroupStarting( groupInfo );
-    }
-
-    void JunitReporter::testCaseStarting( TestCaseInfo const& testCaseInfo ) {
-        m_okToFail = testCaseInfo.okToFail();
-    }
-
-    bool JunitReporter::assertionEnded( AssertionStats const& assertionStats ) {
-        if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail )
-            unexpectedExceptions++;
-        return CumulativeReporterBase::assertionEnded( assertionStats );
-    }
-
-    void JunitReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
-        stdOutForSuite += testCaseStats.stdOut;
-        stdErrForSuite += testCaseStats.stdErr;
-        CumulativeReporterBase::testCaseEnded( testCaseStats );
-    }
-
-    void JunitReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
-        double suiteTime = suiteTimer.getElapsedSeconds();
-        CumulativeReporterBase::testGroupEnded( testGroupStats );
-        writeGroup( *m_testGroups.back(), suiteTime );
-    }
-
-    void JunitReporter::testRunEndedCumulative() {
-        xml.endElement();
-    }
-
-    void JunitReporter::writeGroup( TestGroupNode const& groupNode, double suiteTime ) {
-        XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );
-        TestGroupStats const& stats = groupNode.value;
-        xml.writeAttribute( "name", stats.groupInfo.name );
-        xml.writeAttribute( "errors", unexpectedExceptions );
-        xml.writeAttribute( "failures", stats.totals.assertions.failed-unexpectedExceptions );
-        xml.writeAttribute( "tests", stats.totals.assertions.total() );
-        xml.writeAttribute( "hostname", "tbd" ); // !TBD
-        if( m_config->showDurations() == ShowDurations::Never )
-            xml.writeAttribute( "time", "" );
-        else
-            xml.writeAttribute( "time", suiteTime );
-        xml.writeAttribute( "timestamp", getCurrentTimestamp() );
-
-        // Write test cases
-        for( auto const& child : groupNode.children )
-            writeTestCase( *child );
-
-        xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite ), false );
-        xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite ), false );
-    }
-
-    void JunitReporter::writeTestCase( TestCaseNode const& testCaseNode ) {
-        TestCaseStats const& stats = testCaseNode.value;
-
-        // All test cases have exactly one section - which represents the
-        // test case itself. That section may have 0-n nested sections
-        assert( testCaseNode.children.size() == 1 );
-        SectionNode const& rootSection = *testCaseNode.children.front();
-
-        std::string className = stats.testInfo.className;
-
-        if( className.empty() ) {
-            className = fileNameTag(stats.testInfo.tags);
-            if ( className.empty() )
-                className = "global";
-        }
-
-        if ( !m_config->name().empty() )
-            className = m_config->name() + "." + className;
-
-        writeSection( className, "", rootSection );
-    }
-
-    void JunitReporter::writeSection(  std::string const& className,
-                        std::string const& rootName,
-                        SectionNode const& sectionNode ) {
-        std::string name = trim( sectionNode.stats.sectionInfo.name );
-        if( !rootName.empty() )
-            name = rootName + '/' + name;
-
-        if( !sectionNode.assertions.empty() ||
-            !sectionNode.stdOut.empty() ||
-            !sectionNode.stdErr.empty() ) {
-            XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
-            if( className.empty() ) {
-                xml.writeAttribute( "classname", name );
-                xml.writeAttribute( "name", "root" );
-            }
-            else {
-                xml.writeAttribute( "classname", className );
-                xml.writeAttribute( "name", name );
-            }
-            xml.writeAttribute( "time", ::Catch::Detail::stringify( sectionNode.stats.durationInSeconds ) );
-
-            writeAssertions( sectionNode );
-
-            if( !sectionNode.stdOut.empty() )
-                xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), false );
-            if( !sectionNode.stdErr.empty() )
-                xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), false );
-        }
-        for( auto const& childNode : sectionNode.childSections )
-            if( className.empty() )
-                writeSection( name, "", *childNode );
-            else
-                writeSection( className, name, *childNode );
-    }
-
-    void JunitReporter::writeAssertions( SectionNode const& sectionNode ) {
-        for( auto const& assertion : sectionNode.assertions )
-            writeAssertion( assertion );
-    }
-
-    void JunitReporter::writeAssertion( AssertionStats const& stats ) {
-        AssertionResult const& result = stats.assertionResult;
-        if( !result.isOk() ) {
-            std::string elementName;
-            switch( result.getResultType() ) {
-                case ResultWas::ThrewException:
-                case ResultWas::FatalErrorCondition:
-                    elementName = "error";
-                    break;
-                case ResultWas::ExplicitFailure:
-                    elementName = "failure";
-                    break;
-                case ResultWas::ExpressionFailed:
-                    elementName = "failure";
-                    break;
-                case ResultWas::DidntThrowException:
-                    elementName = "failure";
-                    break;
-
-                // We should never see these here:
-                case ResultWas::Info:
-                case ResultWas::Warning:
-                case ResultWas::Ok:
-                case ResultWas::Unknown:
-                case ResultWas::FailureBit:
-                case ResultWas::Exception:
-                    elementName = "internalError";
-                    break;
-            }
-
-            XmlWriter::ScopedElement e = xml.scopedElement( elementName );
-
-            xml.writeAttribute( "message", result.getExpandedExpression() );
-            xml.writeAttribute( "type", result.getTestMacroName() );
-
-            ReusableStringStream rss;
-            if( !result.getMessage().empty() )
-                rss << result.getMessage() << '\n';
-            for( auto const& msg : stats.infoMessages )
-                if( msg.type == ResultWas::Info )
-                    rss << msg.message << '\n';
-
-            rss << "at " << result.getSourceInfo();
-            xml.writeText( rss.str(), false );
-        }
-    }
-
-    CATCH_REGISTER_REPORTER( "junit", JunitReporter )
-
-} // end namespace Catch
-// end catch_reporter_junit.cpp
-// start catch_reporter_listening.cpp
-
-#include <cassert>
-
-namespace Catch {
-
-    void ListeningReporter::addListener( IStreamingReporterPtr&& listener ) {
-        m_listeners.push_back( std::move( listener ) );
-    }
-
-    void ListeningReporter::addReporter(IStreamingReporterPtr&& reporter) {
-        assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
-        m_reporter = std::move( reporter );
-    }
-
-    ReporterPreferences ListeningReporter::getPreferences() const {
-        return m_reporter->getPreferences();
-    }
-
-    std::set<Verbosity> ListeningReporter::getSupportedVerbosities() {
-        return std::set<Verbosity>{ };
-    }
-
-    void ListeningReporter::noMatchingTestCases( std::string const& spec ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->noMatchingTestCases( spec );
-        }
-        m_reporter->noMatchingTestCases( spec );
-    }
-
-    void ListeningReporter::benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->benchmarkStarting( benchmarkInfo );
-        }
-        m_reporter->benchmarkStarting( benchmarkInfo );
-    }
-    void ListeningReporter::benchmarkEnded( BenchmarkStats const& benchmarkStats ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->benchmarkEnded( benchmarkStats );
-        }
-        m_reporter->benchmarkEnded( benchmarkStats );
-    }
-
-    void ListeningReporter::testRunStarting( TestRunInfo const& testRunInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testRunStarting( testRunInfo );
-        }
-        m_reporter->testRunStarting( testRunInfo );
-    }
-
-    void ListeningReporter::testGroupStarting( GroupInfo const& groupInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testGroupStarting( groupInfo );
-        }
-        m_reporter->testGroupStarting( groupInfo );
-    }
-
-    void ListeningReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testCaseStarting( testInfo );
-        }
-        m_reporter->testCaseStarting( testInfo );
-    }
-
-    void ListeningReporter::sectionStarting( SectionInfo const& sectionInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->sectionStarting( sectionInfo );
-        }
-        m_reporter->sectionStarting( sectionInfo );
-    }
-
-    void ListeningReporter::assertionStarting( AssertionInfo const& assertionInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->assertionStarting( assertionInfo );
-        }
-        m_reporter->assertionStarting( assertionInfo );
-    }
-
-    // The return value indicates if the messages buffer should be cleared:
-    bool ListeningReporter::assertionEnded( AssertionStats const& assertionStats ) {
-        for( auto const& listener : m_listeners ) {
-            static_cast<void>( listener->assertionEnded( assertionStats ) );
-        }
-        return m_reporter->assertionEnded( assertionStats );
-    }
-
-    void ListeningReporter::sectionEnded( SectionStats const& sectionStats ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->sectionEnded( sectionStats );
-        }
-        m_reporter->sectionEnded( sectionStats );
-    }
-
-    void ListeningReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testCaseEnded( testCaseStats );
-        }
-        m_reporter->testCaseEnded( testCaseStats );
-    }
-
-    void ListeningReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testGroupEnded( testGroupStats );
-        }
-        m_reporter->testGroupEnded( testGroupStats );
-    }
-
-    void ListeningReporter::testRunEnded( TestRunStats const& testRunStats ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->testRunEnded( testRunStats );
-        }
-        m_reporter->testRunEnded( testRunStats );
-    }
-
-    void ListeningReporter::skipTest( TestCaseInfo const& testInfo ) {
-        for ( auto const& listener : m_listeners ) {
-            listener->skipTest( testInfo );
-        }
-        m_reporter->skipTest( testInfo );
-    }
-
-    bool ListeningReporter::isMulti() const {
-        return true;
-    }
-
-} // end namespace Catch
-// end catch_reporter_listening.cpp
-// start catch_reporter_xml.cpp
-
-#if defined(_MSC_VER)
-#pragma warning(push)
-#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
-                              // Note that 4062 (not all labels are handled
-                              // and default is missing) is enabled
-#endif
-
-namespace Catch {
-    XmlReporter::XmlReporter( ReporterConfig const& _config )
-    :   StreamingReporterBase( _config ),
-        m_xml(_config.stream())
-    {
-        m_reporterPrefs.shouldRedirectStdOut = true;
-    }
-
-    XmlReporter::~XmlReporter() = default;
-
-    std::string XmlReporter::getDescription() {
-        return "Reports test results as an XML document";
-    }
-
-    std::string XmlReporter::getStylesheetRef() const {
-        return std::string();
-    }
-
-    void XmlReporter::writeSourceInfo( SourceLineInfo const& sourceInfo ) {
-        m_xml
-            .writeAttribute( "filename", sourceInfo.file )
-            .writeAttribute( "line", sourceInfo.line );
-    }
-
-    void XmlReporter::noMatchingTestCases( std::string const& s ) {
-        StreamingReporterBase::noMatchingTestCases( s );
-    }
-
-    void XmlReporter::testRunStarting( TestRunInfo const& testInfo ) {
-        StreamingReporterBase::testRunStarting( testInfo );
-        std::string stylesheetRef = getStylesheetRef();
-        if( !stylesheetRef.empty() )
-            m_xml.writeStylesheetRef( stylesheetRef );
-        m_xml.startElement( "Catch" );
-        if( !m_config->name().empty() )
-            m_xml.writeAttribute( "name", m_config->name() );
-    }
-
-    void XmlReporter::testGroupStarting( GroupInfo const& groupInfo ) {
-        StreamingReporterBase::testGroupStarting( groupInfo );
-        m_xml.startElement( "Group" )
-            .writeAttribute( "name", groupInfo.name );
-    }
-
-    void XmlReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
-        StreamingReporterBase::testCaseStarting(testInfo);
-        m_xml.startElement( "TestCase" )
-            .writeAttribute( "name", trim( testInfo.name ) )
-            .writeAttribute( "description", testInfo.description )
-            .writeAttribute( "tags", testInfo.tagsAsString() );
-
-        writeSourceInfo( testInfo.lineInfo );
-
-        if ( m_config->showDurations() == ShowDurations::Always )
-            m_testCaseTimer.start();
-        m_xml.ensureTagClosed();
-    }
-
-    void XmlReporter::sectionStarting( SectionInfo const& sectionInfo ) {
-        StreamingReporterBase::sectionStarting( sectionInfo );
-        if( m_sectionDepth++ > 0 ) {
-            m_xml.startElement( "Section" )
-                .writeAttribute( "name", trim( sectionInfo.name ) )
-                .writeAttribute( "description", sectionInfo.description );
-            writeSourceInfo( sectionInfo.lineInfo );
-            m_xml.ensureTagClosed();
-        }
-    }
-
-    void XmlReporter::assertionStarting( AssertionInfo const& ) { }
-
-    bool XmlReporter::assertionEnded( AssertionStats const& assertionStats ) {
-
-        AssertionResult const& result = assertionStats.assertionResult;
-
-        bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
-
-        if( includeResults || result.getResultType() == ResultWas::Warning ) {
-            // Print any info messages in <Info> tags.
-            for( auto const& msg : assertionStats.infoMessages ) {
-                if( msg.type == ResultWas::Info && includeResults ) {
-                    m_xml.scopedElement( "Info" )
-                            .writeText( msg.message );
-                } else if ( msg.type == ResultWas::Warning ) {
-                    m_xml.scopedElement( "Warning" )
-                            .writeText( msg.message );
-                }
-            }
-        }
-
-        // Drop out if result was successful but we're not printing them.
-        if( !includeResults && result.getResultType() != ResultWas::Warning )
-            return true;
-
-        // Print the expression if there is one.
-        if( result.hasExpression() ) {
-            m_xml.startElement( "Expression" )
-                .writeAttribute( "success", result.succeeded() )
-                .writeAttribute( "type", result.getTestMacroName() );
-
-            writeSourceInfo( result.getSourceInfo() );
-
-            m_xml.scopedElement( "Original" )
-                .writeText( result.getExpression() );
-            m_xml.scopedElement( "Expanded" )
-                .writeText( result.getExpandedExpression() );
-        }
-
-        // And... Print a result applicable to each result type.
-        switch( result.getResultType() ) {
-            case ResultWas::ThrewException:
-                m_xml.startElement( "Exception" );
-                writeSourceInfo( result.getSourceInfo() );
-                m_xml.writeText( result.getMessage() );
-                m_xml.endElement();
-                break;
-            case ResultWas::FatalErrorCondition:
-                m_xml.startElement( "FatalErrorCondition" );
-                writeSourceInfo( result.getSourceInfo() );
-                m_xml.writeText( result.getMessage() );
-                m_xml.endElement();
-                break;
-            case ResultWas::Info:
-                m_xml.scopedElement( "Info" )
-                    .writeText( result.getMessage() );
-                break;
-            case ResultWas::Warning:
-                // Warning will already have been written
-                break;
-            case ResultWas::ExplicitFailure:
-                m_xml.startElement( "Failure" );
-                writeSourceInfo( result.getSourceInfo() );
-                m_xml.writeText( result.getMessage() );
-                m_xml.endElement();
-                break;
-            default:
-                break;
-        }
-
-        if( result.hasExpression() )
-            m_xml.endElement();
-
-        return true;
-    }
-
-    void XmlReporter::sectionEnded( SectionStats const& sectionStats ) {
-        StreamingReporterBase::sectionEnded( sectionStats );
-        if( --m_sectionDepth > 0 ) {
-            XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
-            e.writeAttribute( "successes", sectionStats.assertions.passed );
-            e.writeAttribute( "failures", sectionStats.assertions.failed );
-            e.writeAttribute( "expectedFailures", sectionStats.assertions.failedButOk );
-
-            if ( m_config->showDurations() == ShowDurations::Always )
-                e.writeAttribute( "durationInSeconds", sectionStats.durationInSeconds );
-
-            m_xml.endElement();
-        }
-    }
-
-    void XmlReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
-        StreamingReporterBase::testCaseEnded( testCaseStats );
-        XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
-        e.writeAttribute( "success", testCaseStats.totals.assertions.allOk() );
-
-        if ( m_config->showDurations() == ShowDurations::Always )
-            e.writeAttribute( "durationInSeconds", m_testCaseTimer.getElapsedSeconds() );
-
-        if( !testCaseStats.stdOut.empty() )
-            m_xml.scopedElement( "StdOut" ).writeText( trim( testCaseStats.stdOut ), false );
-        if( !testCaseStats.stdErr.empty() )
-            m_xml.scopedElement( "StdErr" ).writeText( trim( testCaseStats.stdErr ), false );
-
-        m_xml.endElement();
-    }
-
-    void XmlReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
-        StreamingReporterBase::testGroupEnded( testGroupStats );
-        // TODO: Check testGroupStats.aborting and act accordingly.
-        m_xml.scopedElement( "OverallResults" )
-            .writeAttribute( "successes", testGroupStats.totals.assertions.passed )
-            .writeAttribute( "failures", testGroupStats.totals.assertions.failed )
-            .writeAttribute( "expectedFailures", testGroupStats.totals.assertions.failedButOk );
-        m_xml.endElement();
-    }
-
-    void XmlReporter::testRunEnded( TestRunStats const& testRunStats ) {
-        StreamingReporterBase::testRunEnded( testRunStats );
-        m_xml.scopedElement( "OverallResults" )
-            .writeAttribute( "successes", testRunStats.totals.assertions.passed )
-            .writeAttribute( "failures", testRunStats.totals.assertions.failed )
-            .writeAttribute( "expectedFailures", testRunStats.totals.assertions.failedButOk );
-        m_xml.endElement();
-    }
-
-    CATCH_REGISTER_REPORTER( "xml", XmlReporter )
-
-} // end namespace Catch
-
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
-// end catch_reporter_xml.cpp
-
-namespace Catch {
-    LeakDetector leakDetector;
-}
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// end catch_impl.hpp
-#endif
-
-#ifdef CATCH_CONFIG_MAIN
-// start catch_default_main.hpp
-
-#ifndef __OBJC__
-
-#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
-// Standard C/C++ Win32 Unicode wmain entry point
-extern "C" int wmain (int argc, wchar_t * argv[], wchar_t * []) {
-#else
-// Standard C/C++ main entry point
-int main (int argc, char * argv[]) {
-#endif
-
-    return Catch::Session().run( argc, argv );
-}
-
-#else // __OBJC__
-
-// Objective-C entry point
-int main (int argc, char * const argv[]) {
-#if !CATCH_ARC_ENABLED
-    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
-#endif
-
-    Catch::registerTestMethods();
-    int result = Catch::Session().run( argc, (char**)argv );
-
-#if !CATCH_ARC_ENABLED
-    [pool drain];
-#endif
-
-    return result;
-}
-
-#endif // __OBJC__
-
-// end catch_default_main.hpp
-#endif
-
-#if !defined(CATCH_CONFIG_IMPL_ONLY)
-
-#ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
-#  undef CLARA_CONFIG_MAIN
-#endif
-
-#if !defined(CATCH_CONFIG_DISABLE)
-//////
-// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
-#ifdef CATCH_CONFIG_PREFIX_ALL
-
-#define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
-#define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
-
-#define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, "", __VA_ARGS__ )
-#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
-#define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
-#endif// CATCH_CONFIG_DISABLE_MATCHERS
-#define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
-
-#define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
-#define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
-
-#define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, "", __VA_ARGS__ )
-#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
-#define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
-
-#define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-
-#define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
-#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
-#define CATCH_CAPTURE( msg ) INTERNAL_CATCH_INFO( "CATCH_CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )
-
-#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
-#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
-#define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
-#define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
-#define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
-#define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
-#define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-
-#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
-
-// "BDD-style" convenience wrappers
-#define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
-#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
-#define CATCH_GIVEN( desc )    CATCH_SECTION( std::string( "Given: ") + desc )
-#define CATCH_WHEN( desc )     CATCH_SECTION( std::string( " When: ") + desc )
-#define CATCH_AND_WHEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )
-#define CATCH_THEN( desc )     CATCH_SECTION( std::string( " Then: ") + desc )
-#define CATCH_AND_THEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )
-
-// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
-#else
-
-#define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
-#define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
-
-#define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
-#define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
-#define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
-
-#define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
-#define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
-
-#define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
-#define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
-
-#define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-
-#define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
-#define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
-#define CAPTURE( msg ) INTERNAL_CATCH_INFO( "CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )
-
-#define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
-#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
-#define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
-#define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
-#define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
-#define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
-#define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
-#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
-
-#endif
-
-#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )
-
-// "BDD-style" convenience wrappers
-#define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
-#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
-
-#define GIVEN( desc )    SECTION( std::string("   Given: ") + desc )
-#define WHEN( desc )     SECTION( std::string("    When: ") + desc )
-#define AND_WHEN( desc ) SECTION( std::string("And when: ") + desc )
-#define THEN( desc )     SECTION( std::string("    Then: ") + desc )
-#define AND_THEN( desc ) SECTION( std::string("     And: ") + desc )
-
-using Catch::Detail::Approx;
-
-#else
-//////
-// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
-#ifdef CATCH_CONFIG_PREFIX_ALL
-
-#define CATCH_REQUIRE( ... )        (void)(0)
-#define CATCH_REQUIRE_FALSE( ... )  (void)(0)
-
-#define CATCH_REQUIRE_THROWS( ... ) (void)(0)
-#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
-#define CATCH_REQUIRE_THROWS_WITH( expr, matcher )     (void)(0)
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
-#endif// CATCH_CONFIG_DISABLE_MATCHERS
-#define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)
-
-#define CATCH_CHECK( ... )         (void)(0)
-#define CATCH_CHECK_FALSE( ... )   (void)(0)
-#define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
-#define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
-#define CATCH_CHECK_NOFAIL( ... )  (void)(0)
-
-#define CATCH_CHECK_THROWS( ... )  (void)(0)
-#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
-#define CATCH_CHECK_THROWS_WITH( expr, matcher )     (void)(0)
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define CATCH_CHECK_NOTHROW( ... ) (void)(0)
-
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CATCH_CHECK_THAT( arg, matcher )   (void)(0)
-
-#define CATCH_REQUIRE_THAT( arg, matcher ) (void)(0)
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-
-#define CATCH_INFO( msg )    (void)(0)
-#define CATCH_WARN( msg )    (void)(0)
-#define CATCH_CAPTURE( msg ) (void)(0)
-
-#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-#define CATCH_METHOD_AS_TEST_CASE( method, ... )
-#define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
-#define CATCH_SECTION( ... )
-#define CATCH_FAIL( ... ) (void)(0)
-#define CATCH_FAIL_CHECK( ... ) (void)(0)
-#define CATCH_SUCCEED( ... ) (void)(0)
-
-#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-
-// "BDD-style" convenience wrappers
-#define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
-#define CATCH_GIVEN( desc )
-#define CATCH_WHEN( desc )
-#define CATCH_AND_WHEN( desc )
-#define CATCH_THEN( desc )
-#define CATCH_AND_THEN( desc )
-
-// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
-#else
-
-#define REQUIRE( ... )       (void)(0)
-#define REQUIRE_FALSE( ... ) (void)(0)
-
-#define REQUIRE_THROWS( ... ) (void)(0)
-#define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
-#define REQUIRE_THROWS_WITH( expr, matcher ) (void)(0)
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define REQUIRE_NOTHROW( ... ) (void)(0)
-
-#define CHECK( ... ) (void)(0)
-#define CHECK_FALSE( ... ) (void)(0)
-#define CHECKED_IF( ... ) if (__VA_ARGS__)
-#define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
-#define CHECK_NOFAIL( ... ) (void)(0)
-
-#define CHECK_THROWS( ... )  (void)(0)
-#define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
-#define CHECK_THROWS_WITH( expr, matcher ) (void)(0)
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-#define CHECK_NOTHROW( ... ) (void)(0)
-
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
-#define CHECK_THAT( arg, matcher ) (void)(0)
-
-#define REQUIRE_THAT( arg, matcher ) (void)(0)
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
-
-#define INFO( msg ) (void)(0)
-#define WARN( msg ) (void)(0)
-#define CAPTURE( msg ) (void)(0)
-
-#define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-#define METHOD_AS_TEST_CASE( method, ... )
-#define REGISTER_TEST_CASE( Function, ... ) (void)(0)
-#define SECTION( ... )
-#define FAIL( ... ) (void)(0)
-#define FAIL_CHECK( ... ) (void)(0)
-#define SUCCEED( ... ) (void)(0)
-#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
-
-#endif
-
-#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
-
-// "BDD-style" convenience wrappers
-#define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ) )
-#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
-
-#define GIVEN( desc )
-#define WHEN( desc )
-#define AND_WHEN( desc )
-#define THEN( desc )
-#define AND_THEN( desc )
-
-using Catch::Detail::Approx;
-
-#endif
-
-#endif // ! CATCH_CONFIG_IMPL_ONLY
-
-// start catch_reenable_warnings.h
-
-
-#ifdef __clang__
-#    ifdef __ICC // icpc defines the __clang__ macro
-#        pragma warning(pop)
-#    else
-#        pragma clang diagnostic pop
-#    endif
-#elif defined __GNUC__
-#    pragma GCC diagnostic pop
-#endif
-
-// end catch_reenable_warnings.h
-// end catch.hpp
-#endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
-
+     }
+ }
+ 
+ template<typename T>
+ std::string fpToString( T value, int precision ) {
+     if (Catch::isnan(value)) {
+         return "nan";
+     }
+ 
+     ReusableStringStream rss;
+     rss << std::setprecision( precision )
+         << std::fixed
+         << value;
+     std::string d = rss.str();
+     std::size_t i = d.find_last_not_of( '0' );
+     if( i != std::string::npos && i != d.size()-1 ) {
+         if( d[i] == '.' )
+             i++;
+         d = d.substr( 0, i+1 );
+     }
+     return d;
+ }
+ 
+ //// ======================================================= ////
+ //
+ //   Out-of-line defs for full specialization of StringMaker
+ //
+ //// ======================================================= ////
+ 
+ std::string StringMaker<std::string>::convert(const std::string& str) {
+     if (!getCurrentContext().getConfig()->showInvisibles()) {
+         return '"' + str + '"';
+     }
+ 
+     std::string s("\"");
+     for (char c : str) {
+         switch (c) {
+         case '\n':
+             s.append("\\n");
+             break;
+         case '\t':
+             s.append("\\t");
+             break;
+         default:
+             s.push_back(c);
+             break;
+         }
+     }
+     s.append("\"");
+     return s;
+ }
+ 
+ #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+ std::string StringMaker<std::string_view>::convert(std::string_view str) {
+     return ::Catch::Detail::stringify(std::string{ str });
+ }
+ #endif
+ 
+ std::string StringMaker<char const*>::convert(char const* str) {
+     if (str) {
+         return ::Catch::Detail::stringify(std::string{ str });
+     } else {
+         return{ "{null string}" };
+     }
+ }
+ std::string StringMaker<char*>::convert(char* str) {
+     if (str) {
+         return ::Catch::Detail::stringify(std::string{ str });
+     } else {
+         return{ "{null string}" };
+     }
+ }
+ 
+ #ifdef CATCH_CONFIG_WCHAR
+ std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
+     std::string s;
+     s.reserve(wstr.size());
+     for (auto c : wstr) {
+         s += (c <= 0xff) ? static_cast<char>(c) : '?';
+     }
+     return ::Catch::Detail::stringify(s);
+ }
+ 
+ # ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+ std::string StringMaker<std::wstring_view>::convert(std::wstring_view str) {
+     return StringMaker<std::wstring>::convert(std::wstring(str));
+ }
+ # endif
+ 
+ std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
+     if (str) {
+         return ::Catch::Detail::stringify(std::wstring{ str });
+     } else {
+         return{ "{null string}" };
+     }
+ }
+ std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
+     if (str) {
+         return ::Catch::Detail::stringify(std::wstring{ str });
+     } else {
+         return{ "{null string}" };
+     }
+ }
+ #endif
+ 
+ #if defined(CATCH_CONFIG_CPP17_BYTE)
+ #include <cstddef>
+ std::string StringMaker<std::byte>::convert(std::byte value) {
+     return ::Catch::Detail::stringify(std::to_integer<unsigned long long>(value));
+ }
+ #endif // defined(CATCH_CONFIG_CPP17_BYTE)
+ 
+ std::string StringMaker<int>::convert(int value) {
+     return ::Catch::Detail::stringify(static_cast<long long>(value));
+ }
+ std::string StringMaker<long>::convert(long value) {
+     return ::Catch::Detail::stringify(static_cast<long long>(value));
+ }
+ std::string StringMaker<long long>::convert(long long value) {
+     ReusableStringStream rss;
+     rss << value;
+     if (value > Detail::hexThreshold) {
+         rss << " (0x" << std::hex << value << ')';
+     }
+     return rss.str();
+ }
+ 
+ std::string StringMaker<unsigned int>::convert(unsigned int value) {
+     return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
+ }
+ std::string StringMaker<unsigned long>::convert(unsigned long value) {
+     return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
+ }
+ std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
+     ReusableStringStream rss;
+     rss << value;
+     if (value > Detail::hexThreshold) {
+         rss << " (0x" << std::hex << value << ')';
+     }
+     return rss.str();
+ }
+ 
+ std::string StringMaker<bool>::convert(bool b) {
+     return b ? "true" : "false";
+ }
+ 
+ std::string StringMaker<signed char>::convert(signed char value) {
+     if (value == '\r') {
+         return "'\\r'";
+     } else if (value == '\f') {
+         return "'\\f'";
+     } else if (value == '\n') {
+         return "'\\n'";
+     } else if (value == '\t') {
+         return "'\\t'";
+     } else if ('\0' <= value && value < ' ') {
+         return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
+     } else {
+         char chstr[] = "' '";
+         chstr[1] = value;
+         return chstr;
+     }
+ }
+ std::string StringMaker<char>::convert(char c) {
+     return ::Catch::Detail::stringify(static_cast<signed char>(c));
+ }
+ std::string StringMaker<unsigned char>::convert(unsigned char c) {
+     return ::Catch::Detail::stringify(static_cast<char>(c));
+ }
+ 
+ std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
+     return "nullptr";
+ }
+ 
+ int StringMaker<float>::precision = 5;
+ 
+ std::string StringMaker<float>::convert(float value) {
+     return fpToString(value, precision) + 'f';
+ }
+ 
+ int StringMaker<double>::precision = 10;
+ 
+ std::string StringMaker<double>::convert(double value) {
+     return fpToString(value, precision);
+ }
+ 
+ std::string ratio_string<std::atto>::symbol() { return "a"; }
+ std::string ratio_string<std::femto>::symbol() { return "f"; }
+ std::string ratio_string<std::pico>::symbol() { return "p"; }
+ std::string ratio_string<std::nano>::symbol() { return "n"; }
+ std::string ratio_string<std::micro>::symbol() { return "u"; }
+ std::string ratio_string<std::milli>::symbol() { return "m"; }
+ 
+ } // end namespace Catch
+ 
+ #if defined(__clang__)
+ #    pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_tostring.cpp
+ // start catch_totals.cpp
+ 
+ namespace Catch {
+ 
+     Counts Counts::operator - ( Counts const& other ) const {
+         Counts diff;
+         diff.passed = passed - other.passed;
+         diff.failed = failed - other.failed;
+         diff.failedButOk = failedButOk - other.failedButOk;
+         return diff;
+     }
+ 
+     Counts& Counts::operator += ( Counts const& other ) {
+         passed += other.passed;
+         failed += other.failed;
+         failedButOk += other.failedButOk;
+         return *this;
+     }
+ 
+     std::size_t Counts::total() const {
+         return passed + failed + failedButOk;
+     }
+     bool Counts::allPassed() const {
+         return failed == 0 && failedButOk == 0;
+     }
+     bool Counts::allOk() const {
+         return failed == 0;
+     }
+ 
+     Totals Totals::operator - ( Totals const& other ) const {
+         Totals diff;
+         diff.assertions = assertions - other.assertions;
+         diff.testCases = testCases - other.testCases;
+         return diff;
+     }
+ 
+     Totals& Totals::operator += ( Totals const& other ) {
+         assertions += other.assertions;
+         testCases += other.testCases;
+         return *this;
+     }
+ 
+     Totals Totals::delta( Totals const& prevTotals ) const {
+         Totals diff = *this - prevTotals;
+         if( diff.assertions.failed > 0 )
+             ++diff.testCases.failed;
+         else if( diff.assertions.failedButOk > 0 )
+             ++diff.testCases.failedButOk;
+         else
+             ++diff.testCases.passed;
+         return diff;
+     }
+ 
+ }
+ // end catch_totals.cpp
+ // start catch_uncaught_exceptions.cpp
+ 
+ // start catch_config_uncaught_exceptions.hpp
+ 
+ //              Copyright Catch2 Authors
+ // Distributed under the Boost Software License, Version 1.0.
+ //   (See accompanying file LICENSE_1_0.txt or copy at
+ //        https://www.boost.org/LICENSE_1_0.txt)
+ 
+ // SPDX-License-Identifier: BSL-1.0
+ 
+ #ifndef CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP
+ #define CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP
+ 
+ #if defined(_MSC_VER)
+ #  if _MSC_VER >= 1900 // Visual Studio 2015 or newer
+ #    define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
+ #  endif
+ #endif
+ 
+ #include <exception>
+ 
+ #if defined(__cpp_lib_uncaught_exceptions) \
+     && !defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
+ 
+ #  define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
+ #endif // __cpp_lib_uncaught_exceptions
+ 
+ #if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) \
+     && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) \
+     && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
+ 
+ #  define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
+ #endif
+ 
+ #endif // CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP
+ // end catch_config_uncaught_exceptions.hpp
+ #include <exception>
+ 
+ namespace Catch {
+     bool uncaught_exceptions() {
+ #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+         return false;
+ #elif defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
+         return std::uncaught_exceptions() > 0;
+ #else
+         return std::uncaught_exception();
+ #endif
+   }
+ } // end namespace Catch
+ // end catch_uncaught_exceptions.cpp
+ // start catch_version.cpp
+ 
+ #include <ostream>
+ 
+ namespace Catch {
+ 
+     Version::Version
+         (   unsigned int _majorVersion,
+             unsigned int _minorVersion,
+             unsigned int _patchNumber,
+             char const * const _branchName,
+             unsigned int _buildNumber )
+     :   majorVersion( _majorVersion ),
+         minorVersion( _minorVersion ),
+         patchNumber( _patchNumber ),
+         branchName( _branchName ),
+         buildNumber( _buildNumber )
+     {}
+ 
+     std::ostream& operator << ( std::ostream& os, Version const& version ) {
+         os  << version.majorVersion << '.'
+             << version.minorVersion << '.'
+             << version.patchNumber;
+         // branchName is never null -> 0th char is \0 if it is empty
+         if (version.branchName[0]) {
+             os << '-' << version.branchName
+                << '.' << version.buildNumber;
+         }
+         return os;
+     }
+ 
+     Version const& libraryVersion() {
+         static Version version( 2, 13, 10, "", 0 );
+         return version;
+     }
+ 
+ }
+ // end catch_version.cpp
+ // start catch_wildcard_pattern.cpp
+ 
+ namespace Catch {
+ 
+     WildcardPattern::WildcardPattern( std::string const& pattern,
+                                       CaseSensitive::Choice caseSensitivity )
+     :   m_caseSensitivity( caseSensitivity ),
+         m_pattern( normaliseString( pattern ) )
+     {
+         if( startsWith( m_pattern, '*' ) ) {
+             m_pattern = m_pattern.substr( 1 );
+             m_wildcard = WildcardAtStart;
+         }
+         if( endsWith( m_pattern, '*' ) ) {
+             m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
+             m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
+         }
+     }
+ 
+     bool WildcardPattern::matches( std::string const& str ) const {
+         switch( m_wildcard ) {
+             case NoWildcard:
+                 return m_pattern == normaliseString( str );
+             case WildcardAtStart:
+                 return endsWith( normaliseString( str ), m_pattern );
+             case WildcardAtEnd:
+                 return startsWith( normaliseString( str ), m_pattern );
+             case WildcardAtBothEnds:
+                 return contains( normaliseString( str ), m_pattern );
+             default:
+                 CATCH_INTERNAL_ERROR( "Unknown enum" );
+         }
+     }
+ 
+     std::string WildcardPattern::normaliseString( std::string const& str ) const {
+         return trim( m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str );
+     }
+ }
+ // end catch_wildcard_pattern.cpp
+ // start catch_xmlwriter.cpp
+ 
+ #include <iomanip>
+ #include <type_traits>
+ 
+ namespace Catch {
+ 
+ namespace {
+ 
+     size_t trailingBytes(unsigned char c) {
+         if ((c & 0xE0) == 0xC0) {
+             return 2;
+         }
+         if ((c & 0xF0) == 0xE0) {
+             return 3;
+         }
+         if ((c & 0xF8) == 0xF0) {
+             return 4;
+         }
+         CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
+     }
+ 
+     uint32_t headerValue(unsigned char c) {
+         if ((c & 0xE0) == 0xC0) {
+             return c & 0x1F;
+         }
+         if ((c & 0xF0) == 0xE0) {
+             return c & 0x0F;
+         }
+         if ((c & 0xF8) == 0xF0) {
+             return c & 0x07;
+         }
+         CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
+     }
+ 
+     void hexEscapeChar(std::ostream& os, unsigned char c) {
+         std::ios_base::fmtflags f(os.flags());
+         os << "\\x"
+             << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
+             << static_cast<int>(c);
+         os.flags(f);
+     }
+ 
+     bool shouldNewline(XmlFormatting fmt) {
+         return !!(static_cast<std::underlying_type<XmlFormatting>::type>(fmt & XmlFormatting::Newline));
+     }
+ 
+     bool shouldIndent(XmlFormatting fmt) {
+         return !!(static_cast<std::underlying_type<XmlFormatting>::type>(fmt & XmlFormatting::Indent));
+     }
+ 
+ } // anonymous namespace
+ 
+     XmlFormatting operator | (XmlFormatting lhs, XmlFormatting rhs) {
+         return static_cast<XmlFormatting>(
+             static_cast<std::underlying_type<XmlFormatting>::type>(lhs) |
+             static_cast<std::underlying_type<XmlFormatting>::type>(rhs)
+         );
+     }
+ 
+     XmlFormatting operator & (XmlFormatting lhs, XmlFormatting rhs) {
+         return static_cast<XmlFormatting>(
+             static_cast<std::underlying_type<XmlFormatting>::type>(lhs) &
+             static_cast<std::underlying_type<XmlFormatting>::type>(rhs)
+         );
+     }
+ 
+     XmlEncode::XmlEncode( std::string const& str, ForWhat forWhat )
+     :   m_str( str ),
+         m_forWhat( forWhat )
+     {}
+ 
+     void XmlEncode::encodeTo( std::ostream& os ) const {
+         // Apostrophe escaping not necessary if we always use " to write attributes
+         // (see: http://www.w3.org/TR/xml/#syntax)
+ 
+         for( std::size_t idx = 0; idx < m_str.size(); ++ idx ) {
+             unsigned char c = m_str[idx];
+             switch (c) {
+             case '<':   os << "&lt;"; break;
+             case '&':   os << "&amp;"; break;
+ 
+             case '>':
+                 // See: http://www.w3.org/TR/xml/#syntax
+                 if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
+                     os << "&gt;";
+                 else
+                     os << c;
+                 break;
+ 
+             case '\"':
+                 if (m_forWhat == ForAttributes)
+                     os << "&quot;";
+                 else
+                     os << c;
+                 break;
+ 
+             default:
+                 // Check for control characters and invalid utf-8
+ 
+                 // Escape control characters in standard ascii
+                 // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
+                 if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
+                     hexEscapeChar(os, c);
+                     break;
+                 }
+ 
+                 // Plain ASCII: Write it to stream
+                 if (c < 0x7F) {
+                     os << c;
+                     break;
+                 }
+ 
+                 // UTF-8 territory
+                 // Check if the encoding is valid and if it is not, hex escape bytes.
+                 // Important: We do not check the exact decoded values for validity, only the encoding format
+                 // First check that this bytes is a valid lead byte:
+                 // This means that it is not encoded as 1111 1XXX
+                 // Or as 10XX XXXX
+                 if (c <  0xC0 ||
+                     c >= 0xF8) {
+                     hexEscapeChar(os, c);
+                     break;
+                 }
+ 
+                 auto encBytes = trailingBytes(c);
+                 // Are there enough bytes left to avoid accessing out-of-bounds memory?
+                 if (idx + encBytes - 1 >= m_str.size()) {
+                     hexEscapeChar(os, c);
+                     break;
+                 }
+                 // The header is valid, check data
+                 // The next encBytes bytes must together be a valid utf-8
+                 // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
+                 bool valid = true;
+                 uint32_t value = headerValue(c);
+                 for (std::size_t n = 1; n < encBytes; ++n) {
+                     unsigned char nc = m_str[idx + n];
+                     valid &= ((nc & 0xC0) == 0x80);
+                     value = (value << 6) | (nc & 0x3F);
+                 }
+ 
+                 if (
+                     // Wrong bit pattern of following bytes
+                     (!valid) ||
+                     // Overlong encodings
+                     (value < 0x80) ||
+                     (0x80 <= value && value < 0x800   && encBytes > 2) ||
+                     (0x800 < value && value < 0x10000 && encBytes > 3) ||
+                     // Encoded value out of range
+                     (value >= 0x110000)
+                     ) {
+                     hexEscapeChar(os, c);
+                     break;
+                 }
+ 
+                 // If we got here, this is in fact a valid(ish) utf-8 sequence
+                 for (std::size_t n = 0; n < encBytes; ++n) {
+                     os << m_str[idx + n];
+                 }
+                 idx += encBytes - 1;
+                 break;
+             }
+         }
+     }
+ 
+     std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
+         xmlEncode.encodeTo( os );
+         return os;
+     }
+ 
+     XmlWriter::ScopedElement::ScopedElement( XmlWriter* writer, XmlFormatting fmt )
+     :   m_writer( writer ),
+         m_fmt(fmt)
+     {}
+ 
+     XmlWriter::ScopedElement::ScopedElement( ScopedElement&& other ) noexcept
+     :   m_writer( other.m_writer ),
+         m_fmt(other.m_fmt)
+     {
+         other.m_writer = nullptr;
+         other.m_fmt = XmlFormatting::None;
+     }
+     XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=( ScopedElement&& other ) noexcept {
+         if ( m_writer ) {
+             m_writer->endElement();
+         }
+         m_writer = other.m_writer;
+         other.m_writer = nullptr;
+         m_fmt = other.m_fmt;
+         other.m_fmt = XmlFormatting::None;
+         return *this;
+     }
+ 
+     XmlWriter::ScopedElement::~ScopedElement() {
+         if (m_writer) {
+             m_writer->endElement(m_fmt);
+         }
+     }
+ 
+     XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText( std::string const& text, XmlFormatting fmt ) {
+         m_writer->writeText( text, fmt );
+         return *this;
+     }
+ 
+     XmlWriter::XmlWriter( std::ostream& os ) : m_os( os )
+     {
+         writeDeclaration();
+     }
+ 
+     XmlWriter::~XmlWriter() {
+         while (!m_tags.empty()) {
+             endElement();
+         }
+         newlineIfNecessary();
+     }
+ 
+     XmlWriter& XmlWriter::startElement( std::string const& name, XmlFormatting fmt ) {
+         ensureTagClosed();
+         newlineIfNecessary();
+         if (shouldIndent(fmt)) {
+             m_os << m_indent;
+             m_indent += "  ";
+         }
+         m_os << '<' << name;
+         m_tags.push_back( name );
+         m_tagIsOpen = true;
+         applyFormatting(fmt);
+         return *this;
+     }
+ 
+     XmlWriter::ScopedElement XmlWriter::scopedElement( std::string const& name, XmlFormatting fmt ) {
+         ScopedElement scoped( this, fmt );
+         startElement( name, fmt );
+         return scoped;
+     }
+ 
+     XmlWriter& XmlWriter::endElement(XmlFormatting fmt) {
+         m_indent = m_indent.substr(0, m_indent.size() - 2);
+ 
+         if( m_tagIsOpen ) {
+             m_os << "/>";
+             m_tagIsOpen = false;
+         } else {
+             newlineIfNecessary();
+             if (shouldIndent(fmt)) {
+                 m_os << m_indent;
+             }
+             m_os << "</" << m_tags.back() << ">";
+         }
+         m_os << std::flush;
+         applyFormatting(fmt);
+         m_tags.pop_back();
+         return *this;
+     }
+ 
+     XmlWriter& XmlWriter::writeAttribute( std::string const& name, std::string const& attribute ) {
+         if( !name.empty() && !attribute.empty() )
+             m_os << ' ' << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << '"';
+         return *this;
+     }
+ 
+     XmlWriter& XmlWriter::writeAttribute( std::string const& name, bool attribute ) {
+         m_os << ' ' << name << "=\"" << ( attribute ? "true" : "false" ) << '"';
+         return *this;
+     }
+ 
+     XmlWriter& XmlWriter::writeText( std::string const& text, XmlFormatting fmt) {
+         if( !text.empty() ){
+             bool tagWasOpen = m_tagIsOpen;
+             ensureTagClosed();
+             if (tagWasOpen && shouldIndent(fmt)) {
+                 m_os << m_indent;
+             }
+             m_os << XmlEncode( text );
+             applyFormatting(fmt);
+         }
+         return *this;
+     }
+ 
+     XmlWriter& XmlWriter::writeComment( std::string const& text, XmlFormatting fmt) {
+         ensureTagClosed();
+         if (shouldIndent(fmt)) {
+             m_os << m_indent;
+         }
+         m_os << "<!--" << text << "-->";
+         applyFormatting(fmt);
+         return *this;
+     }
+ 
+     void XmlWriter::writeStylesheetRef( std::string const& url ) {
+         m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
+     }
+ 
+     XmlWriter& XmlWriter::writeBlankLine() {
+         ensureTagClosed();
+         m_os << '\n';
+         return *this;
+     }
+ 
+     void XmlWriter::ensureTagClosed() {
+         if( m_tagIsOpen ) {
+             m_os << '>' << std::flush;
+             newlineIfNecessary();
+             m_tagIsOpen = false;
+         }
+     }
+ 
+     void XmlWriter::applyFormatting(XmlFormatting fmt) {
+         m_needsNewline = shouldNewline(fmt);
+     }
+ 
+     void XmlWriter::writeDeclaration() {
+         m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
+     }
+ 
+     void XmlWriter::newlineIfNecessary() {
+         if( m_needsNewline ) {
+             m_os << std::endl;
+             m_needsNewline = false;
+         }
+     }
+ }
+ // end catch_xmlwriter.cpp
+ // start catch_reporter_bases.cpp
+ 
+ #include <cstring>
+ #include <cfloat>
+ #include <cstdio>
+ #include <cassert>
+ #include <memory>
+ 
+ namespace Catch {
+     void prepareExpandedExpression(AssertionResult& result) {
+         result.getExpandedExpression();
+     }
+ 
+     // Because formatting using c++ streams is stateful, drop down to C is required
+     // Alternatively we could use stringstream, but its performance is... not good.
+     std::string getFormattedDuration( double duration ) {
+         // Max exponent + 1 is required to represent the whole part
+         // + 1 for decimal point
+         // + 3 for the 3 decimal places
+         // + 1 for null terminator
+         const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
+         char buffer[maxDoubleSize];
+ 
+         // Save previous errno, to prevent sprintf from overwriting it
+         ErrnoGuard guard;
+ #ifdef _MSC_VER
+         sprintf_s(buffer, "%.3f", duration);
+ #else
+         std::sprintf(buffer, "%.3f", duration);
+ #endif
+         return std::string(buffer);
+     }
+ 
+     bool shouldShowDuration( IConfig const& config, double duration ) {
+         if ( config.showDurations() == ShowDurations::Always ) {
+             return true;
+         }
+         if ( config.showDurations() == ShowDurations::Never ) {
+             return false;
+         }
+         const double min = config.minDuration();
+         return min >= 0 && duration >= min;
+     }
+ 
+     std::string serializeFilters( std::vector<std::string> const& container ) {
+         ReusableStringStream oss;
+         bool first = true;
+         for (auto&& filter : container)
+         {
+             if (!first)
+                 oss << ' ';
+             else
+                 first = false;
+ 
+             oss << filter;
+         }
+         return oss.str();
+     }
+ 
+     TestEventListenerBase::TestEventListenerBase(ReporterConfig const & _config)
+         :StreamingReporterBase(_config) {}
+ 
+     std::set<Verbosity> TestEventListenerBase::getSupportedVerbosities() {
+         return { Verbosity::Quiet, Verbosity::Normal, Verbosity::High };
+     }
+ 
+     void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}
+ 
+     bool TestEventListenerBase::assertionEnded(AssertionStats const &) {
+         return false;
+     }
+ 
+ } // end namespace Catch
+ // end catch_reporter_bases.cpp
+ // start catch_reporter_compact.cpp
+ 
+ namespace {
+ 
+ #ifdef CATCH_PLATFORM_MAC
+     const char* failedString() { return "FAILED"; }
+     const char* passedString() { return "PASSED"; }
+ #else
+     const char* failedString() { return "failed"; }
+     const char* passedString() { return "passed"; }
+ #endif
+ 
+     // Colour::LightGrey
+     Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }
+ 
+     std::string bothOrAll( std::size_t count ) {
+         return count == 1 ? std::string() :
+                count == 2 ? "both " : "all " ;
+     }
+ 
+ } // anon namespace
+ 
+ namespace Catch {
+ namespace {
+ // Colour, message variants:
+ // - white: No tests ran.
+ // -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
+ // - white: Passed [both/all] N test cases (no assertions).
+ // -   red: Failed N tests cases, failed M assertions.
+ // - green: Passed [both/all] N tests cases with M assertions.
+ void printTotals(std::ostream& out, const Totals& totals) {
+     if (totals.testCases.total() == 0) {
+         out << "No tests ran.";
+     } else if (totals.testCases.failed == totals.testCases.total()) {
+         Colour colour(Colour::ResultError);
+         const std::string qualify_assertions_failed =
+             totals.assertions.failed == totals.assertions.total() ?
+             bothOrAll(totals.assertions.failed) : std::string();
+         out <<
+             "Failed " << bothOrAll(totals.testCases.failed)
+             << pluralise(totals.testCases.failed, "test case") << ", "
+             "failed " << qualify_assertions_failed <<
+             pluralise(totals.assertions.failed, "assertion") << '.';
+     } else if (totals.assertions.total() == 0) {
+         out <<
+             "Passed " << bothOrAll(totals.testCases.total())
+             << pluralise(totals.testCases.total(), "test case")
+             << " (no assertions).";
+     } else if (totals.assertions.failed) {
+         Colour colour(Colour::ResultError);
+         out <<
+             "Failed " << pluralise(totals.testCases.failed, "test case") << ", "
+             "failed " << pluralise(totals.assertions.failed, "assertion") << '.';
+     } else {
+         Colour colour(Colour::ResultSuccess);
+         out <<
+             "Passed " << bothOrAll(totals.testCases.passed)
+             << pluralise(totals.testCases.passed, "test case") <<
+             " with " << pluralise(totals.assertions.passed, "assertion") << '.';
+     }
+ }
+ 
+ // Implementation of CompactReporter formatting
+ class AssertionPrinter {
+ public:
+     AssertionPrinter& operator= (AssertionPrinter const&) = delete;
+     AssertionPrinter(AssertionPrinter const&) = delete;
+     AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
+         : stream(_stream)
+         , result(_stats.assertionResult)
+         , messages(_stats.infoMessages)
+         , itMessage(_stats.infoMessages.begin())
+         , printInfoMessages(_printInfoMessages) {}
+ 
+     void print() {
+         printSourceInfo();
+ 
+         itMessage = messages.begin();
+ 
+         switch (result.getResultType()) {
+         case ResultWas::Ok:
+             printResultType(Colour::ResultSuccess, passedString());
+             printOriginalExpression();
+             printReconstructedExpression();
+             if (!result.hasExpression())
+                 printRemainingMessages(Colour::None);
+             else
+                 printRemainingMessages();
+             break;
+         case ResultWas::ExpressionFailed:
+             if (result.isOk())
+                 printResultType(Colour::ResultSuccess, failedString() + std::string(" - but was ok"));
+             else
+                 printResultType(Colour::Error, failedString());
+             printOriginalExpression();
+             printReconstructedExpression();
+             printRemainingMessages();
+             break;
+         case ResultWas::ThrewException:
+             printResultType(Colour::Error, failedString());
+             printIssue("unexpected exception with message:");
+             printMessage();
+             printExpressionWas();
+             printRemainingMessages();
+             break;
+         case ResultWas::FatalErrorCondition:
+             printResultType(Colour::Error, failedString());
+             printIssue("fatal error condition with message:");
+             printMessage();
+             printExpressionWas();
+             printRemainingMessages();
+             break;
+         case ResultWas::DidntThrowException:
+             printResultType(Colour::Error, failedString());
+             printIssue("expected exception, got none");
+             printExpressionWas();
+             printRemainingMessages();
+             break;
+         case ResultWas::Info:
+             printResultType(Colour::None, "info");
+             printMessage();
+             printRemainingMessages();
+             break;
+         case ResultWas::Warning:
+             printResultType(Colour::None, "warning");
+             printMessage();
+             printRemainingMessages();
+             break;
+         case ResultWas::ExplicitFailure:
+             printResultType(Colour::Error, failedString());
+             printIssue("explicitly");
+             printRemainingMessages(Colour::None);
+             break;
+             // These cases are here to prevent compiler warnings
+         case ResultWas::Unknown:
+         case ResultWas::FailureBit:
+         case ResultWas::Exception:
+             printResultType(Colour::Error, "** internal error **");
+             break;
+         }
+     }
+ 
+ private:
+     void printSourceInfo() const {
+         Colour colourGuard(Colour::FileName);
+         stream << result.getSourceInfo() << ':';
+     }
+ 
+     void printResultType(Colour::Code colour, std::string const& passOrFail) const {
+         if (!passOrFail.empty()) {
+             {
+                 Colour colourGuard(colour);
+                 stream << ' ' << passOrFail;
+             }
+             stream << ':';
+         }
+     }
+ 
+     void printIssue(std::string const& issue) const {
+         stream << ' ' << issue;
+     }
+ 
+     void printExpressionWas() {
+         if (result.hasExpression()) {
+             stream << ';';
+             {
+                 Colour colour(dimColour());
+                 stream << " expression was:";
+             }
+             printOriginalExpression();
+         }
+     }
+ 
+     void printOriginalExpression() const {
+         if (result.hasExpression()) {
+             stream << ' ' << result.getExpression();
+         }
+     }
+ 
+     void printReconstructedExpression() const {
+         if (result.hasExpandedExpression()) {
+             {
+                 Colour colour(dimColour());
+                 stream << " for: ";
+             }
+             stream << result.getExpandedExpression();
+         }
+     }
+ 
+     void printMessage() {
+         if (itMessage != messages.end()) {
+             stream << " '" << itMessage->message << '\'';
+             ++itMessage;
+         }
+     }
+ 
+     void printRemainingMessages(Colour::Code colour = dimColour()) {
+         if (itMessage == messages.end())
+             return;
+ 
+         const auto itEnd = messages.cend();
+         const auto N = static_cast<std::size_t>(std::distance(itMessage, itEnd));
+ 
+         {
+             Colour colourGuard(colour);
+             stream << " with " << pluralise(N, "message") << ':';
+         }
+ 
+         while (itMessage != itEnd) {
+             // If this assertion is a warning ignore any INFO messages
+             if (printInfoMessages || itMessage->type != ResultWas::Info) {
+                 printMessage();
+                 if (itMessage != itEnd) {
+                     Colour colourGuard(dimColour());
+                     stream << " and";
+                 }
+                 continue;
+             }
+             ++itMessage;
+         }
+     }
+ 
+ private:
+     std::ostream& stream;
+     AssertionResult const& result;
+     std::vector<MessageInfo> messages;
+     std::vector<MessageInfo>::const_iterator itMessage;
+     bool printInfoMessages;
+ };
+ 
+ } // anon namespace
+ 
+         std::string CompactReporter::getDescription() {
+             return "Reports test results on a single line, suitable for IDEs";
+         }
+ 
+         void CompactReporter::noMatchingTestCases( std::string const& spec ) {
+             stream << "No test cases matched '" << spec << '\'' << std::endl;
+         }
+ 
+         void CompactReporter::assertionStarting( AssertionInfo const& ) {}
+ 
+         bool CompactReporter::assertionEnded( AssertionStats const& _assertionStats ) {
+             AssertionResult const& result = _assertionStats.assertionResult;
+ 
+             bool printInfoMessages = true;
+ 
+             // Drop out if result was successful and we're not printing those
+             if( !m_config->includeSuccessfulResults() && result.isOk() ) {
+                 if( result.getResultType() != ResultWas::Warning )
+                     return false;
+                 printInfoMessages = false;
+             }
+ 
+             AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
+             printer.print();
+ 
+             stream << std::endl;
+             return true;
+         }
+ 
+         void CompactReporter::sectionEnded(SectionStats const& _sectionStats) {
+             double dur = _sectionStats.durationInSeconds;
+             if ( shouldShowDuration( *m_config, dur ) ) {
+                 stream << getFormattedDuration( dur ) << " s: " << _sectionStats.sectionInfo.name << std::endl;
+             }
+         }
+ 
+         void CompactReporter::testRunEnded( TestRunStats const& _testRunStats ) {
+             printTotals( stream, _testRunStats.totals );
+             stream << '\n' << std::endl;
+             StreamingReporterBase::testRunEnded( _testRunStats );
+         }
+ 
+         CompactReporter::~CompactReporter() {}
+ 
+     CATCH_REGISTER_REPORTER( "compact", CompactReporter )
+ 
+ } // end namespace Catch
+ // end catch_reporter_compact.cpp
+ // start catch_reporter_console.cpp
+ 
+ #include <cfloat>
+ #include <cstdio>
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(push)
+ #pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+  // Note that 4062 (not all labels are handled and default is missing) is enabled
+ #endif
+ 
+ #if defined(__clang__)
+ #  pragma clang diagnostic push
+ // For simplicity, benchmarking-only helpers are always enabled
+ #  pragma clang diagnostic ignored "-Wunused-function"
+ #endif
+ 
+ namespace Catch {
+ 
+ namespace {
+ 
+ // Formatter impl for ConsoleReporter
+ class ConsoleAssertionPrinter {
+ public:
+     ConsoleAssertionPrinter& operator= (ConsoleAssertionPrinter const&) = delete;
+     ConsoleAssertionPrinter(ConsoleAssertionPrinter const&) = delete;
+     ConsoleAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
+         : stream(_stream),
+         stats(_stats),
+         result(_stats.assertionResult),
+         colour(Colour::None),
+         message(result.getMessage()),
+         messages(_stats.infoMessages),
+         printInfoMessages(_printInfoMessages) {
+         switch (result.getResultType()) {
+         case ResultWas::Ok:
+             colour = Colour::Success;
+             passOrFail = "PASSED";
+             //if( result.hasMessage() )
+             if (_stats.infoMessages.size() == 1)
+                 messageLabel = "with message";
+             if (_stats.infoMessages.size() > 1)
+                 messageLabel = "with messages";
+             break;
+         case ResultWas::ExpressionFailed:
+             if (result.isOk()) {
+                 colour = Colour::Success;
+                 passOrFail = "FAILED - but was ok";
+             } else {
+                 colour = Colour::Error;
+                 passOrFail = "FAILED";
+             }
+             if (_stats.infoMessages.size() == 1)
+                 messageLabel = "with message";
+             if (_stats.infoMessages.size() > 1)
+                 messageLabel = "with messages";
+             break;
+         case ResultWas::ThrewException:
+             colour = Colour::Error;
+             passOrFail = "FAILED";
+             messageLabel = "due to unexpected exception with ";
+             if (_stats.infoMessages.size() == 1)
+                 messageLabel += "message";
+             if (_stats.infoMessages.size() > 1)
+                 messageLabel += "messages";
+             break;
+         case ResultWas::FatalErrorCondition:
+             colour = Colour::Error;
+             passOrFail = "FAILED";
+             messageLabel = "due to a fatal error condition";
+             break;
+         case ResultWas::DidntThrowException:
+             colour = Colour::Error;
+             passOrFail = "FAILED";
+             messageLabel = "because no exception was thrown where one was expected";
+             break;
+         case ResultWas::Info:
+             messageLabel = "info";
+             break;
+         case ResultWas::Warning:
+             messageLabel = "warning";
+             break;
+         case ResultWas::ExplicitFailure:
+             passOrFail = "FAILED";
+             colour = Colour::Error;
+             if (_stats.infoMessages.size() == 1)
+                 messageLabel = "explicitly with message";
+             if (_stats.infoMessages.size() > 1)
+                 messageLabel = "explicitly with messages";
+             break;
+             // These cases are here to prevent compiler warnings
+         case ResultWas::Unknown:
+         case ResultWas::FailureBit:
+         case ResultWas::Exception:
+             passOrFail = "** internal error **";
+             colour = Colour::Error;
+             break;
+         }
+     }
+ 
+     void print() const {
+         printSourceInfo();
+         if (stats.totals.assertions.total() > 0) {
+             printResultType();
+             printOriginalExpression();
+             printReconstructedExpression();
+         } else {
+             stream << '\n';
+         }
+         printMessage();
+     }
+ 
+ private:
+     void printResultType() const {
+         if (!passOrFail.empty()) {
+             Colour colourGuard(colour);
+             stream << passOrFail << ":\n";
+         }
+     }
+     void printOriginalExpression() const {
+         if (result.hasExpression()) {
+             Colour colourGuard(Colour::OriginalExpression);
+             stream << "  ";
+             stream << result.getExpressionInMacro();
+             stream << '\n';
+         }
+     }
+     void printReconstructedExpression() const {
+         if (result.hasExpandedExpression()) {
+             stream << "with expansion:\n";
+             Colour colourGuard(Colour::ReconstructedExpression);
+             stream << Column(result.getExpandedExpression()).indent(2) << '\n';
+         }
+     }
+     void printMessage() const {
+         if (!messageLabel.empty())
+             stream << messageLabel << ':' << '\n';
+         for (auto const& msg : messages) {
+             // If this assertion is a warning ignore any INFO messages
+             if (printInfoMessages || msg.type != ResultWas::Info)
+                 stream << Column(msg.message).indent(2) << '\n';
+         }
+     }
+     void printSourceInfo() const {
+         Colour colourGuard(Colour::FileName);
+         stream << result.getSourceInfo() << ": ";
+     }
+ 
+     std::ostream& stream;
+     AssertionStats const& stats;
+     AssertionResult const& result;
+     Colour::Code colour;
+     std::string passOrFail;
+     std::string messageLabel;
+     std::string message;
+     std::vector<MessageInfo> messages;
+     bool printInfoMessages;
+ };
+ 
+ std::size_t makeRatio(std::size_t number, std::size_t total) {
+     std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
+     return (ratio == 0 && number > 0) ? 1 : ratio;
+ }
+ 
+ std::size_t& findMax(std::size_t& i, std::size_t& j, std::size_t& k) {
+     if (i > j && i > k)
+         return i;
+     else if (j > k)
+         return j;
+     else
+         return k;
+ }
+ 
+ struct ColumnInfo {
+     enum Justification { Left, Right };
+     std::string name;
+     int width;
+     Justification justification;
+ };
+ struct ColumnBreak {};
+ struct RowBreak {};
+ 
+ class Duration {
+     enum class Unit {
+         Auto,
+         Nanoseconds,
+         Microseconds,
+         Milliseconds,
+         Seconds,
+         Minutes
+     };
+     static const uint64_t s_nanosecondsInAMicrosecond = 1000;
+     static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
+     static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
+     static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;
+ 
+     double m_inNanoseconds;
+     Unit m_units;
+ 
+ public:
+     explicit Duration(double inNanoseconds, Unit units = Unit::Auto)
+         : m_inNanoseconds(inNanoseconds),
+         m_units(units) {
+         if (m_units == Unit::Auto) {
+             if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
+                 m_units = Unit::Nanoseconds;
+             else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
+                 m_units = Unit::Microseconds;
+             else if (m_inNanoseconds < s_nanosecondsInASecond)
+                 m_units = Unit::Milliseconds;
+             else if (m_inNanoseconds < s_nanosecondsInAMinute)
+                 m_units = Unit::Seconds;
+             else
+                 m_units = Unit::Minutes;
+         }
+ 
+     }
+ 
+     auto value() const -> double {
+         switch (m_units) {
+         case Unit::Microseconds:
+             return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
+         case Unit::Milliseconds:
+             return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
+         case Unit::Seconds:
+             return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
+         case Unit::Minutes:
+             return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
+         default:
+             return m_inNanoseconds;
+         }
+     }
+     auto unitsAsString() const -> std::string {
+         switch (m_units) {
+         case Unit::Nanoseconds:
+             return "ns";
+         case Unit::Microseconds:
+             return "us";
+         case Unit::Milliseconds:
+             return "ms";
+         case Unit::Seconds:
+             return "s";
+         case Unit::Minutes:
+             return "m";
+         default:
+             return "** internal error **";
+         }
+ 
+     }
+     friend auto operator << (std::ostream& os, Duration const& duration) -> std::ostream& {
+         return os << duration.value() << ' ' << duration.unitsAsString();
+     }
+ };
+ } // end anon namespace
+ 
+ class TablePrinter {
+     std::ostream& m_os;
+     std::vector<ColumnInfo> m_columnInfos;
+     std::ostringstream m_oss;
+     int m_currentColumn = -1;
+     bool m_isOpen = false;
+ 
+ public:
+     TablePrinter( std::ostream& os, std::vector<ColumnInfo> columnInfos )
+     :   m_os( os ),
+         m_columnInfos( std::move( columnInfos ) ) {}
+ 
+     auto columnInfos() const -> std::vector<ColumnInfo> const& {
+         return m_columnInfos;
+     }
+ 
+     void open() {
+         if (!m_isOpen) {
+             m_isOpen = true;
+             *this << RowBreak();
+ 
+             Columns headerCols;
+             Spacer spacer(2);
+             for (auto const& info : m_columnInfos) {
+                 headerCols += Column(info.name).width(static_cast<std::size_t>(info.width - 2));
+                 headerCols += spacer;
+             }
+             m_os << headerCols << '\n';
+ 
+             m_os << Catch::getLineOfChars<'-'>() << '\n';
+         }
+     }
+     void close() {
+         if (m_isOpen) {
+             *this << RowBreak();
+             m_os << std::endl;
+             m_isOpen = false;
+         }
+     }
+ 
+     template<typename T>
+     friend TablePrinter& operator << (TablePrinter& tp, T const& value) {
+         tp.m_oss << value;
+         return tp;
+     }
+ 
+     friend TablePrinter& operator << (TablePrinter& tp, ColumnBreak) {
+         auto colStr = tp.m_oss.str();
+         const auto strSize = colStr.size();
+         tp.m_oss.str("");
+         tp.open();
+         if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
+             tp.m_currentColumn = -1;
+             tp.m_os << '\n';
+         }
+         tp.m_currentColumn++;
+ 
+         auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
+         auto padding = (strSize + 1 < static_cast<std::size_t>(colInfo.width))
+             ? std::string(colInfo.width - (strSize + 1), ' ')
+             : std::string();
+         if (colInfo.justification == ColumnInfo::Left)
+             tp.m_os << colStr << padding << ' ';
+         else
+             tp.m_os << padding << colStr << ' ';
+         return tp;
+     }
+ 
+     friend TablePrinter& operator << (TablePrinter& tp, RowBreak) {
+         if (tp.m_currentColumn > 0) {
+             tp.m_os << '\n';
+             tp.m_currentColumn = -1;
+         }
+         return tp;
+     }
+ };
+ 
+ ConsoleReporter::ConsoleReporter(ReporterConfig const& config)
+     : StreamingReporterBase(config),
+     m_tablePrinter(new TablePrinter(config.stream(),
+         [&config]() -> std::vector<ColumnInfo> {
+         if (config.fullConfig()->benchmarkNoAnalysis())
+         {
+             return{
+                 { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 43, ColumnInfo::Left },
+                 { "     samples", 14, ColumnInfo::Right },
+                 { "  iterations", 14, ColumnInfo::Right },
+                 { "        mean", 14, ColumnInfo::Right }
+             };
+         }
+         else
+         {
+             return{
+                 { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 43, ColumnInfo::Left },
+                 { "samples      mean       std dev", 14, ColumnInfo::Right },
+                 { "iterations   low mean   low std dev", 14, ColumnInfo::Right },
+                 { "estimated    high mean  high std dev", 14, ColumnInfo::Right }
+             };
+         }
+     }())) {}
+ ConsoleReporter::~ConsoleReporter() = default;
+ 
+ std::string ConsoleReporter::getDescription() {
+     return "Reports test results as plain lines of text";
+ }
+ 
+ void ConsoleReporter::noMatchingTestCases(std::string const& spec) {
+     stream << "No test cases matched '" << spec << '\'' << std::endl;
+ }
+ 
+ void ConsoleReporter::reportInvalidArguments(std::string const&arg){
+     stream << "Invalid Filter: " << arg << std::endl;
+ }
+ 
+ void ConsoleReporter::assertionStarting(AssertionInfo const&) {}
+ 
+ bool ConsoleReporter::assertionEnded(AssertionStats const& _assertionStats) {
+     AssertionResult const& result = _assertionStats.assertionResult;
+ 
+     bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
+ 
+     // Drop out if result was successful but we're not printing them.
+     if (!includeResults && result.getResultType() != ResultWas::Warning)
+         return false;
+ 
+     lazyPrint();
+ 
+     ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
+     printer.print();
+     stream << std::endl;
+     return true;
+ }
+ 
+ void ConsoleReporter::sectionStarting(SectionInfo const& _sectionInfo) {
+     m_tablePrinter->close();
+     m_headerPrinted = false;
+     StreamingReporterBase::sectionStarting(_sectionInfo);
+ }
+ void ConsoleReporter::sectionEnded(SectionStats const& _sectionStats) {
+     m_tablePrinter->close();
+     if (_sectionStats.missingAssertions) {
+         lazyPrint();
+         Colour colour(Colour::ResultError);
+         if (m_sectionStack.size() > 1)
+             stream << "\nNo assertions in section";
+         else
+             stream << "\nNo assertions in test case";
+         stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
+     }
+     double dur = _sectionStats.durationInSeconds;
+     if (shouldShowDuration(*m_config, dur)) {
+         stream << getFormattedDuration(dur) << " s: " << _sectionStats.sectionInfo.name << std::endl;
+     }
+     if (m_headerPrinted) {
+         m_headerPrinted = false;
+     }
+     StreamingReporterBase::sectionEnded(_sectionStats);
+ }
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ void ConsoleReporter::benchmarkPreparing(std::string const& name) {
+     lazyPrintWithoutClosingBenchmarkTable();
+ 
+     auto nameCol = Column(name).width(static_cast<std::size_t>(m_tablePrinter->columnInfos()[0].width - 2));
+ 
+     bool firstLine = true;
+     for (auto line : nameCol) {
+         if (!firstLine)
+             (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
+         else
+             firstLine = false;
+ 
+         (*m_tablePrinter) << line << ColumnBreak();
+     }
+ }
+ 
+ void ConsoleReporter::benchmarkStarting(BenchmarkInfo const& info) {
+     (*m_tablePrinter) << info.samples << ColumnBreak()
+         << info.iterations << ColumnBreak();
+     if (!m_config->benchmarkNoAnalysis())
+         (*m_tablePrinter) << Duration(info.estimatedDuration) << ColumnBreak();
+ }
+ void ConsoleReporter::benchmarkEnded(BenchmarkStats<> const& stats) {
+     if (m_config->benchmarkNoAnalysis())
+     {
+         (*m_tablePrinter) << Duration(stats.mean.point.count()) << ColumnBreak();
+     }
+     else
+     {
+         (*m_tablePrinter) << ColumnBreak()
+             << Duration(stats.mean.point.count()) << ColumnBreak()
+             << Duration(stats.mean.lower_bound.count()) << ColumnBreak()
+             << Duration(stats.mean.upper_bound.count()) << ColumnBreak() << ColumnBreak()
+             << Duration(stats.standardDeviation.point.count()) << ColumnBreak()
+             << Duration(stats.standardDeviation.lower_bound.count()) << ColumnBreak()
+             << Duration(stats.standardDeviation.upper_bound.count()) << ColumnBreak() << ColumnBreak() << ColumnBreak() << ColumnBreak() << ColumnBreak();
+     }
+ }
+ 
+ void ConsoleReporter::benchmarkFailed(std::string const& error) {
+     Colour colour(Colour::Red);
+     (*m_tablePrinter)
+         << "Benchmark failed (" << error << ')'
+         << ColumnBreak() << RowBreak();
+ }
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+ void ConsoleReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
+     m_tablePrinter->close();
+     StreamingReporterBase::testCaseEnded(_testCaseStats);
+     m_headerPrinted = false;
+ }
+ void ConsoleReporter::testGroupEnded(TestGroupStats const& _testGroupStats) {
+     if (currentGroupInfo.used) {
+         printSummaryDivider();
+         stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
+         printTotals(_testGroupStats.totals);
+         stream << '\n' << std::endl;
+     }
+     StreamingReporterBase::testGroupEnded(_testGroupStats);
+ }
+ void ConsoleReporter::testRunEnded(TestRunStats const& _testRunStats) {
+     printTotalsDivider(_testRunStats.totals);
+     printTotals(_testRunStats.totals);
+     stream << std::endl;
+     StreamingReporterBase::testRunEnded(_testRunStats);
+ }
+ void ConsoleReporter::testRunStarting(TestRunInfo const& _testInfo) {
+     StreamingReporterBase::testRunStarting(_testInfo);
+     printTestFilters();
+ }
+ 
+ void ConsoleReporter::lazyPrint() {
+ 
+     m_tablePrinter->close();
+     lazyPrintWithoutClosingBenchmarkTable();
+ }
+ 
+ void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {
+ 
+     if (!currentTestRunInfo.used)
+         lazyPrintRunInfo();
+     if (!currentGroupInfo.used)
+         lazyPrintGroupInfo();
+ 
+     if (!m_headerPrinted) {
+         printTestCaseAndSectionHeader();
+         m_headerPrinted = true;
+     }
+ }
+ void ConsoleReporter::lazyPrintRunInfo() {
+     stream << '\n' << getLineOfChars<'~'>() << '\n';
+     Colour colour(Colour::SecondaryText);
+     stream << currentTestRunInfo->name
+         << " is a Catch v" << libraryVersion() << " host application.\n"
+         << "Run with -? for options\n\n";
+ 
+     if (m_config->rngSeed() != 0)
+         stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";
+ 
+     currentTestRunInfo.used = true;
+ }
+ void ConsoleReporter::lazyPrintGroupInfo() {
+     if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1) {
+         printClosedHeader("Group: " + currentGroupInfo->name);
+         currentGroupInfo.used = true;
+     }
+ }
+ void ConsoleReporter::printTestCaseAndSectionHeader() {
+     assert(!m_sectionStack.empty());
+     printOpenHeader(currentTestCaseInfo->name);
+ 
+     if (m_sectionStack.size() > 1) {
+         Colour colourGuard(Colour::Headers);
+ 
+         auto
+             it = m_sectionStack.begin() + 1, // Skip first section (test case)
+             itEnd = m_sectionStack.end();
+         for (; it != itEnd; ++it)
+             printHeaderString(it->name, 2);
+     }
+ 
+     SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;
+ 
+     stream << getLineOfChars<'-'>() << '\n';
+     Colour colourGuard(Colour::FileName);
+     stream << lineInfo << '\n';
+     stream << getLineOfChars<'.'>() << '\n' << std::endl;
+ }
+ 
+ void ConsoleReporter::printClosedHeader(std::string const& _name) {
+     printOpenHeader(_name);
+     stream << getLineOfChars<'.'>() << '\n';
+ }
+ void ConsoleReporter::printOpenHeader(std::string const& _name) {
+     stream << getLineOfChars<'-'>() << '\n';
+     {
+         Colour colourGuard(Colour::Headers);
+         printHeaderString(_name);
+     }
+ }
+ 
+ // if string has a : in first line will set indent to follow it on
+ // subsequent lines
+ void ConsoleReporter::printHeaderString(std::string const& _string, std::size_t indent) {
+     std::size_t i = _string.find(": ");
+     if (i != std::string::npos)
+         i += 2;
+     else
+         i = 0;
+     stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
+ }
+ 
+ struct SummaryColumn {
+ 
+     SummaryColumn( std::string _label, Colour::Code _colour )
+     :   label( std::move( _label ) ),
+         colour( _colour ) {}
+     SummaryColumn addRow( std::size_t count ) {
+         ReusableStringStream rss;
+         rss << count;
+         std::string row = rss.str();
+         for (auto& oldRow : rows) {
+             while (oldRow.size() < row.size())
+                 oldRow = ' ' + oldRow;
+             while (oldRow.size() > row.size())
+                 row = ' ' + row;
+         }
+         rows.push_back(row);
+         return *this;
+     }
+ 
+     std::string label;
+     Colour::Code colour;
+     std::vector<std::string> rows;
+ 
+ };
+ 
+ void ConsoleReporter::printTotals( Totals const& totals ) {
+     if (totals.testCases.total() == 0) {
+         stream << Colour(Colour::Warning) << "No tests ran\n";
+     } else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
+         stream << Colour(Colour::ResultSuccess) << "All tests passed";
+         stream << " ("
+             << pluralise(totals.assertions.passed, "assertion") << " in "
+             << pluralise(totals.testCases.passed, "test case") << ')'
+             << '\n';
+     } else {
+ 
+         std::vector<SummaryColumn> columns;
+         columns.push_back(SummaryColumn("", Colour::None)
+                           .addRow(totals.testCases.total())
+                           .addRow(totals.assertions.total()));
+         columns.push_back(SummaryColumn("passed", Colour::Success)
+                           .addRow(totals.testCases.passed)
+                           .addRow(totals.assertions.passed));
+         columns.push_back(SummaryColumn("failed", Colour::ResultError)
+                           .addRow(totals.testCases.failed)
+                           .addRow(totals.assertions.failed));
+         columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
+                           .addRow(totals.testCases.failedButOk)
+                           .addRow(totals.assertions.failedButOk));
+ 
+         printSummaryRow("test cases", columns, 0);
+         printSummaryRow("assertions", columns, 1);
+     }
+ }
+ void ConsoleReporter::printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row) {
+     for (auto col : cols) {
+         std::string value = col.rows[row];
+         if (col.label.empty()) {
+             stream << label << ": ";
+             if (value != "0")
+                 stream << value;
+             else
+                 stream << Colour(Colour::Warning) << "- none -";
+         } else if (value != "0") {
+             stream << Colour(Colour::LightGrey) << " | ";
+             stream << Colour(col.colour)
+                 << value << ' ' << col.label;
+         }
+     }
+     stream << '\n';
+ }
+ 
+ void ConsoleReporter::printTotalsDivider(Totals const& totals) {
+     if (totals.testCases.total() > 0) {
+         std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
+         std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
+         std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
+         while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
+             findMax(failedRatio, failedButOkRatio, passedRatio)++;
+         while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
+             findMax(failedRatio, failedButOkRatio, passedRatio)--;
+ 
+         stream << Colour(Colour::Error) << std::string(failedRatio, '=');
+         stream << Colour(Colour::ResultExpectedFailure) << std::string(failedButOkRatio, '=');
+         if (totals.testCases.allPassed())
+             stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
+         else
+             stream << Colour(Colour::Success) << std::string(passedRatio, '=');
+     } else {
+         stream << Colour(Colour::Warning) << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
+     }
+     stream << '\n';
+ }
+ void ConsoleReporter::printSummaryDivider() {
+     stream << getLineOfChars<'-'>() << '\n';
+ }
+ 
+ void ConsoleReporter::printTestFilters() {
+     if (m_config->testSpec().hasFilters()) {
+         Colour guard(Colour::BrightYellow);
+         stream << "Filters: " << serializeFilters(m_config->getTestsOrTags()) << '\n';
+     }
+ }
+ 
+ CATCH_REGISTER_REPORTER("console", ConsoleReporter)
+ 
+ } // end namespace Catch
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(pop)
+ #endif
+ 
+ #if defined(__clang__)
+ #  pragma clang diagnostic pop
+ #endif
+ // end catch_reporter_console.cpp
+ // start catch_reporter_junit.cpp
+ 
+ #include <cassert>
+ #include <sstream>
+ #include <ctime>
+ #include <algorithm>
+ #include <iomanip>
+ 
+ namespace Catch {
+ 
+     namespace {
+         std::string getCurrentTimestamp() {
+             // Beware, this is not reentrant because of backward compatibility issues
+             // Also, UTC only, again because of backward compatibility (%z is C++11)
+             time_t rawtime;
+             std::time(&rawtime);
+             auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
+ 
+ #ifdef _MSC_VER
+             std::tm timeInfo = {};
+             gmtime_s(&timeInfo, &rawtime);
+ #else
+             std::tm* timeInfo;
+             timeInfo = std::gmtime(&rawtime);
+ #endif
+ 
+             char timeStamp[timeStampSize];
+             const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
+ 
+ #ifdef _MSC_VER
+             std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
+ #else
+             std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
+ #endif
+             return std::string(timeStamp, timeStampSize-1);
+         }
+ 
+         std::string fileNameTag(const std::vector<std::string> &tags) {
+             auto it = std::find_if(begin(tags),
+                                    end(tags),
+                                    [] (std::string const& tag) {return tag.front() == '#'; });
+             if (it != tags.end())
+                 return it->substr(1);
+             return std::string();
+         }
+ 
+         // Formats the duration in seconds to 3 decimal places.
+         // This is done because some genius defined Maven Surefire schema
+         // in a way that only accepts 3 decimal places, and tools like
+         // Jenkins use that schema for validation JUnit reporter output.
+         std::string formatDuration( double seconds ) {
+             ReusableStringStream rss;
+             rss << std::fixed << std::setprecision( 3 ) << seconds;
+             return rss.str();
+         }
+ 
+     } // anonymous namespace
+ 
+     JunitReporter::JunitReporter( ReporterConfig const& _config )
+         :   CumulativeReporterBase( _config ),
+             xml( _config.stream() )
+         {
+             m_reporterPrefs.shouldRedirectStdOut = true;
+             m_reporterPrefs.shouldReportAllAssertions = true;
+         }
+ 
+     JunitReporter::~JunitReporter() {}
+ 
+     std::string JunitReporter::getDescription() {
+         return "Reports test results in an XML format that looks like Ant's junitreport target";
+     }
+ 
+     void JunitReporter::noMatchingTestCases( std::string const& /*spec*/ ) {}
+ 
+     void JunitReporter::testRunStarting( TestRunInfo const& runInfo )  {
+         CumulativeReporterBase::testRunStarting( runInfo );
+         xml.startElement( "testsuites" );
+     }
+ 
+     void JunitReporter::testGroupStarting( GroupInfo const& groupInfo ) {
+         suiteTimer.start();
+         stdOutForSuite.clear();
+         stdErrForSuite.clear();
+         unexpectedExceptions = 0;
+         CumulativeReporterBase::testGroupStarting( groupInfo );
+     }
+ 
+     void JunitReporter::testCaseStarting( TestCaseInfo const& testCaseInfo ) {
+         m_okToFail = testCaseInfo.okToFail();
+     }
+ 
+     bool JunitReporter::assertionEnded( AssertionStats const& assertionStats ) {
+         if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail )
+             unexpectedExceptions++;
+         return CumulativeReporterBase::assertionEnded( assertionStats );
+     }
+ 
+     void JunitReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
+         stdOutForSuite += testCaseStats.stdOut;
+         stdErrForSuite += testCaseStats.stdErr;
+         CumulativeReporterBase::testCaseEnded( testCaseStats );
+     }
+ 
+     void JunitReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
+         double suiteTime = suiteTimer.getElapsedSeconds();
+         CumulativeReporterBase::testGroupEnded( testGroupStats );
+         writeGroup( *m_testGroups.back(), suiteTime );
+     }
+ 
+     void JunitReporter::testRunEndedCumulative() {
+         xml.endElement();
+     }
+ 
+     void JunitReporter::writeGroup( TestGroupNode const& groupNode, double suiteTime ) {
+         XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );
+ 
+         TestGroupStats const& stats = groupNode.value;
+         xml.writeAttribute( "name", stats.groupInfo.name );
+         xml.writeAttribute( "errors", unexpectedExceptions );
+         xml.writeAttribute( "failures", stats.totals.assertions.failed-unexpectedExceptions );
+         xml.writeAttribute( "tests", stats.totals.assertions.total() );
+         xml.writeAttribute( "hostname", "tbd" ); // !TBD
+         if( m_config->showDurations() == ShowDurations::Never )
+             xml.writeAttribute( "time", "" );
+         else
+             xml.writeAttribute( "time", formatDuration( suiteTime ) );
+         xml.writeAttribute( "timestamp", getCurrentTimestamp() );
+ 
+         // Write properties if there are any
+         if (m_config->hasTestFilters() || m_config->rngSeed() != 0) {
+             auto properties = xml.scopedElement("properties");
+             if (m_config->hasTestFilters()) {
+                 xml.scopedElement("property")
+                     .writeAttribute("name", "filters")
+                     .writeAttribute("value", serializeFilters(m_config->getTestsOrTags()));
+             }
+             if (m_config->rngSeed() != 0) {
+                 xml.scopedElement("property")
+                     .writeAttribute("name", "random-seed")
+                     .writeAttribute("value", m_config->rngSeed());
+             }
+         }
+ 
+         // Write test cases
+         for( auto const& child : groupNode.children )
+             writeTestCase( *child );
+ 
+         xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite ), XmlFormatting::Newline );
+         xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite ), XmlFormatting::Newline );
+     }
+ 
+     void JunitReporter::writeTestCase( TestCaseNode const& testCaseNode ) {
+         TestCaseStats const& stats = testCaseNode.value;
+ 
+         // All test cases have exactly one section - which represents the
+         // test case itself. That section may have 0-n nested sections
+         assert( testCaseNode.children.size() == 1 );
+         SectionNode const& rootSection = *testCaseNode.children.front();
+ 
+         std::string className = stats.testInfo.className;
+ 
+         if( className.empty() ) {
+             className = fileNameTag(stats.testInfo.tags);
+             if ( className.empty() )
+                 className = "global";
+         }
+ 
+         if ( !m_config->name().empty() )
+             className = m_config->name() + "." + className;
+ 
+         writeSection( className, "", rootSection, stats.testInfo.okToFail() );
+     }
+ 
+     void JunitReporter::writeSection( std::string const& className,
+                                       std::string const& rootName,
+                                       SectionNode const& sectionNode,
+                                       bool testOkToFail) {
+         std::string name = trim( sectionNode.stats.sectionInfo.name );
+         if( !rootName.empty() )
+             name = rootName + '/' + name;
+ 
+         if( !sectionNode.assertions.empty() ||
+             !sectionNode.stdOut.empty() ||
+             !sectionNode.stdErr.empty() ) {
+             XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
+             if( className.empty() ) {
+                 xml.writeAttribute( "classname", name );
+                 xml.writeAttribute( "name", "root" );
+             }
+             else {
+                 xml.writeAttribute( "classname", className );
+                 xml.writeAttribute( "name", name );
+             }
+             xml.writeAttribute( "time", formatDuration( sectionNode.stats.durationInSeconds ) );
+             // This is not ideal, but it should be enough to mimic gtest's
+             // junit output.
+             // Ideally the JUnit reporter would also handle `skipTest`
+             // events and write those out appropriately.
+             xml.writeAttribute( "status", "run" );
+ 
+             if (sectionNode.stats.assertions.failedButOk) {
+                 xml.scopedElement("skipped")
+                     .writeAttribute("message", "TEST_CASE tagged with !mayfail");
+             }
+ 
+             writeAssertions( sectionNode );
+ 
+             if( !sectionNode.stdOut.empty() )
+                 xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), XmlFormatting::Newline );
+             if( !sectionNode.stdErr.empty() )
+                 xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), XmlFormatting::Newline );
+         }
+         for( auto const& childNode : sectionNode.childSections )
+             if( className.empty() )
+                 writeSection( name, "", *childNode, testOkToFail );
+             else
+                 writeSection( className, name, *childNode, testOkToFail );
+     }
+ 
+     void JunitReporter::writeAssertions( SectionNode const& sectionNode ) {
+         for( auto const& assertion : sectionNode.assertions )
+             writeAssertion( assertion );
+     }
+ 
+     void JunitReporter::writeAssertion( AssertionStats const& stats ) {
+         AssertionResult const& result = stats.assertionResult;
+         if( !result.isOk() ) {
+             std::string elementName;
+             switch( result.getResultType() ) {
+                 case ResultWas::ThrewException:
+                 case ResultWas::FatalErrorCondition:
+                     elementName = "error";
+                     break;
+                 case ResultWas::ExplicitFailure:
+                 case ResultWas::ExpressionFailed:
+                 case ResultWas::DidntThrowException:
+                     elementName = "failure";
+                     break;
+ 
+                 // We should never see these here:
+                 case ResultWas::Info:
+                 case ResultWas::Warning:
+                 case ResultWas::Ok:
+                 case ResultWas::Unknown:
+                 case ResultWas::FailureBit:
+                 case ResultWas::Exception:
+                     elementName = "internalError";
+                     break;
+             }
+ 
+             XmlWriter::ScopedElement e = xml.scopedElement( elementName );
+ 
+             xml.writeAttribute( "message", result.getExpression() );
+             xml.writeAttribute( "type", result.getTestMacroName() );
+ 
+             ReusableStringStream rss;
+             if (stats.totals.assertions.total() > 0) {
+                 rss << "FAILED" << ":\n";
+                 if (result.hasExpression()) {
+                     rss << "  ";
+                     rss << result.getExpressionInMacro();
+                     rss << '\n';
+                 }
+                 if (result.hasExpandedExpression()) {
+                     rss << "with expansion:\n";
+                     rss << Column(result.getExpandedExpression()).indent(2) << '\n';
+                 }
+             } else {
+                 rss << '\n';
+             }
+ 
+             if( !result.getMessage().empty() )
+                 rss << result.getMessage() << '\n';
+             for( auto const& msg : stats.infoMessages )
+                 if( msg.type == ResultWas::Info )
+                     rss << msg.message << '\n';
+ 
+             rss << "at " << result.getSourceInfo();
+             xml.writeText( rss.str(), XmlFormatting::Newline );
+         }
+     }
+ 
+     CATCH_REGISTER_REPORTER( "junit", JunitReporter )
+ 
+ } // end namespace Catch
+ // end catch_reporter_junit.cpp
+ // start catch_reporter_listening.cpp
+ 
+ #include <cassert>
+ 
+ namespace Catch {
+ 
+     ListeningReporter::ListeningReporter() {
+         // We will assume that listeners will always want all assertions
+         m_preferences.shouldReportAllAssertions = true;
+     }
+ 
+     void ListeningReporter::addListener( IStreamingReporterPtr&& listener ) {
+         m_listeners.push_back( std::move( listener ) );
+     }
+ 
+     void ListeningReporter::addReporter(IStreamingReporterPtr&& reporter) {
+         assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
+         m_reporter = std::move( reporter );
+         m_preferences.shouldRedirectStdOut = m_reporter->getPreferences().shouldRedirectStdOut;
+     }
+ 
+     ReporterPreferences ListeningReporter::getPreferences() const {
+         return m_preferences;
+     }
+ 
+     std::set<Verbosity> ListeningReporter::getSupportedVerbosities() {
+         return std::set<Verbosity>{ };
+     }
+ 
+     void ListeningReporter::noMatchingTestCases( std::string const& spec ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->noMatchingTestCases( spec );
+         }
+         m_reporter->noMatchingTestCases( spec );
+     }
+ 
+     void ListeningReporter::reportInvalidArguments(std::string const&arg){
+         for ( auto const& listener : m_listeners ) {
+             listener->reportInvalidArguments( arg );
+         }
+         m_reporter->reportInvalidArguments( arg );
+     }
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+     void ListeningReporter::benchmarkPreparing( std::string const& name ) {
+         for (auto const& listener : m_listeners) {
+             listener->benchmarkPreparing(name);
+         }
+         m_reporter->benchmarkPreparing(name);
+     }
+     void ListeningReporter::benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->benchmarkStarting( benchmarkInfo );
+         }
+         m_reporter->benchmarkStarting( benchmarkInfo );
+     }
+     void ListeningReporter::benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->benchmarkEnded( benchmarkStats );
+         }
+         m_reporter->benchmarkEnded( benchmarkStats );
+     }
+ 
+     void ListeningReporter::benchmarkFailed( std::string const& error ) {
+         for (auto const& listener : m_listeners) {
+             listener->benchmarkFailed(error);
+         }
+         m_reporter->benchmarkFailed(error);
+     }
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     void ListeningReporter::testRunStarting( TestRunInfo const& testRunInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testRunStarting( testRunInfo );
+         }
+         m_reporter->testRunStarting( testRunInfo );
+     }
+ 
+     void ListeningReporter::testGroupStarting( GroupInfo const& groupInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testGroupStarting( groupInfo );
+         }
+         m_reporter->testGroupStarting( groupInfo );
+     }
+ 
+     void ListeningReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testCaseStarting( testInfo );
+         }
+         m_reporter->testCaseStarting( testInfo );
+     }
+ 
+     void ListeningReporter::sectionStarting( SectionInfo const& sectionInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->sectionStarting( sectionInfo );
+         }
+         m_reporter->sectionStarting( sectionInfo );
+     }
+ 
+     void ListeningReporter::assertionStarting( AssertionInfo const& assertionInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->assertionStarting( assertionInfo );
+         }
+         m_reporter->assertionStarting( assertionInfo );
+     }
+ 
+     // The return value indicates if the messages buffer should be cleared:
+     bool ListeningReporter::assertionEnded( AssertionStats const& assertionStats ) {
+         for( auto const& listener : m_listeners ) {
+             static_cast<void>( listener->assertionEnded( assertionStats ) );
+         }
+         return m_reporter->assertionEnded( assertionStats );
+     }
+ 
+     void ListeningReporter::sectionEnded( SectionStats const& sectionStats ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->sectionEnded( sectionStats );
+         }
+         m_reporter->sectionEnded( sectionStats );
+     }
+ 
+     void ListeningReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testCaseEnded( testCaseStats );
+         }
+         m_reporter->testCaseEnded( testCaseStats );
+     }
+ 
+     void ListeningReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testGroupEnded( testGroupStats );
+         }
+         m_reporter->testGroupEnded( testGroupStats );
+     }
+ 
+     void ListeningReporter::testRunEnded( TestRunStats const& testRunStats ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->testRunEnded( testRunStats );
+         }
+         m_reporter->testRunEnded( testRunStats );
+     }
+ 
+     void ListeningReporter::skipTest( TestCaseInfo const& testInfo ) {
+         for ( auto const& listener : m_listeners ) {
+             listener->skipTest( testInfo );
+         }
+         m_reporter->skipTest( testInfo );
+     }
+ 
+     bool ListeningReporter::isMulti() const {
+         return true;
+     }
+ 
+ } // end namespace Catch
+ // end catch_reporter_listening.cpp
+ // start catch_reporter_xml.cpp
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(push)
+ #pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+                               // Note that 4062 (not all labels are handled
+                               // and default is missing) is enabled
+ #endif
+ 
+ namespace Catch {
+     XmlReporter::XmlReporter( ReporterConfig const& _config )
+     :   StreamingReporterBase( _config ),
+         m_xml(_config.stream())
+     {
+         m_reporterPrefs.shouldRedirectStdOut = true;
+         m_reporterPrefs.shouldReportAllAssertions = true;
+     }
+ 
+     XmlReporter::~XmlReporter() = default;
+ 
+     std::string XmlReporter::getDescription() {
+         return "Reports test results as an XML document";
+     }
+ 
+     std::string XmlReporter::getStylesheetRef() const {
+         return std::string();
+     }
+ 
+     void XmlReporter::writeSourceInfo( SourceLineInfo const& sourceInfo ) {
+         m_xml
+             .writeAttribute( "filename", sourceInfo.file )
+             .writeAttribute( "line", sourceInfo.line );
+     }
+ 
+     void XmlReporter::noMatchingTestCases( std::string const& s ) {
+         StreamingReporterBase::noMatchingTestCases( s );
+     }
+ 
+     void XmlReporter::testRunStarting( TestRunInfo const& testInfo ) {
+         StreamingReporterBase::testRunStarting( testInfo );
+         std::string stylesheetRef = getStylesheetRef();
+         if( !stylesheetRef.empty() )
+             m_xml.writeStylesheetRef( stylesheetRef );
+         m_xml.startElement( "Catch" );
+         if( !m_config->name().empty() )
+             m_xml.writeAttribute( "name", m_config->name() );
+         if (m_config->testSpec().hasFilters())
+             m_xml.writeAttribute( "filters", serializeFilters( m_config->getTestsOrTags() ) );
+         if( m_config->rngSeed() != 0 )
+             m_xml.scopedElement( "Randomness" )
+                 .writeAttribute( "seed", m_config->rngSeed() );
+     }
+ 
+     void XmlReporter::testGroupStarting( GroupInfo const& groupInfo ) {
+         StreamingReporterBase::testGroupStarting( groupInfo );
+         m_xml.startElement( "Group" )
+             .writeAttribute( "name", groupInfo.name );
+     }
+ 
+     void XmlReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
+         StreamingReporterBase::testCaseStarting(testInfo);
+         m_xml.startElement( "TestCase" )
+             .writeAttribute( "name", trim( testInfo.name ) )
+             .writeAttribute( "description", testInfo.description )
+             .writeAttribute( "tags", testInfo.tagsAsString() );
+ 
+         writeSourceInfo( testInfo.lineInfo );
+ 
+         if ( m_config->showDurations() == ShowDurations::Always )
+             m_testCaseTimer.start();
+         m_xml.ensureTagClosed();
+     }
+ 
+     void XmlReporter::sectionStarting( SectionInfo const& sectionInfo ) {
+         StreamingReporterBase::sectionStarting( sectionInfo );
+         if( m_sectionDepth++ > 0 ) {
+             m_xml.startElement( "Section" )
+                 .writeAttribute( "name", trim( sectionInfo.name ) );
+             writeSourceInfo( sectionInfo.lineInfo );
+             m_xml.ensureTagClosed();
+         }
+     }
+ 
+     void XmlReporter::assertionStarting( AssertionInfo const& ) { }
+ 
+     bool XmlReporter::assertionEnded( AssertionStats const& assertionStats ) {
+ 
+         AssertionResult const& result = assertionStats.assertionResult;
+ 
+         bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
+ 
+         if( includeResults || result.getResultType() == ResultWas::Warning ) {
+             // Print any info messages in <Info> tags.
+             for( auto const& msg : assertionStats.infoMessages ) {
+                 if( msg.type == ResultWas::Info && includeResults ) {
+                     m_xml.scopedElement( "Info" )
+                             .writeText( msg.message );
+                 } else if ( msg.type == ResultWas::Warning ) {
+                     m_xml.scopedElement( "Warning" )
+                             .writeText( msg.message );
+                 }
+             }
+         }
+ 
+         // Drop out if result was successful but we're not printing them.
+         if( !includeResults && result.getResultType() != ResultWas::Warning )
+             return true;
+ 
+         // Print the expression if there is one.
+         if( result.hasExpression() ) {
+             m_xml.startElement( "Expression" )
+                 .writeAttribute( "success", result.succeeded() )
+                 .writeAttribute( "type", result.getTestMacroName() );
+ 
+             writeSourceInfo( result.getSourceInfo() );
+ 
+             m_xml.scopedElement( "Original" )
+                 .writeText( result.getExpression() );
+             m_xml.scopedElement( "Expanded" )
+                 .writeText( result.getExpandedExpression() );
+         }
+ 
+         // And... Print a result applicable to each result type.
+         switch( result.getResultType() ) {
+             case ResultWas::ThrewException:
+                 m_xml.startElement( "Exception" );
+                 writeSourceInfo( result.getSourceInfo() );
+                 m_xml.writeText( result.getMessage() );
+                 m_xml.endElement();
+                 break;
+             case ResultWas::FatalErrorCondition:
+                 m_xml.startElement( "FatalErrorCondition" );
+                 writeSourceInfo( result.getSourceInfo() );
+                 m_xml.writeText( result.getMessage() );
+                 m_xml.endElement();
+                 break;
+             case ResultWas::Info:
+                 m_xml.scopedElement( "Info" )
+                     .writeText( result.getMessage() );
+                 break;
+             case ResultWas::Warning:
+                 // Warning will already have been written
+                 break;
+             case ResultWas::ExplicitFailure:
+                 m_xml.startElement( "Failure" );
+                 writeSourceInfo( result.getSourceInfo() );
+                 m_xml.writeText( result.getMessage() );
+                 m_xml.endElement();
+                 break;
+             default:
+                 break;
+         }
+ 
+         if( result.hasExpression() )
+             m_xml.endElement();
+ 
+         return true;
+     }
+ 
+     void XmlReporter::sectionEnded( SectionStats const& sectionStats ) {
+         StreamingReporterBase::sectionEnded( sectionStats );
+         if( --m_sectionDepth > 0 ) {
+             XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
+             e.writeAttribute( "successes", sectionStats.assertions.passed );
+             e.writeAttribute( "failures", sectionStats.assertions.failed );
+             e.writeAttribute( "expectedFailures", sectionStats.assertions.failedButOk );
+ 
+             if ( m_config->showDurations() == ShowDurations::Always )
+                 e.writeAttribute( "durationInSeconds", sectionStats.durationInSeconds );
+ 
+             m_xml.endElement();
+         }
+     }
+ 
+     void XmlReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
+         StreamingReporterBase::testCaseEnded( testCaseStats );
+         XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
+         e.writeAttribute( "success", testCaseStats.totals.assertions.allOk() );
+ 
+         if ( m_config->showDurations() == ShowDurations::Always )
+             e.writeAttribute( "durationInSeconds", m_testCaseTimer.getElapsedSeconds() );
+ 
+         if( !testCaseStats.stdOut.empty() )
+             m_xml.scopedElement( "StdOut" ).writeText( trim( testCaseStats.stdOut ), XmlFormatting::Newline );
+         if( !testCaseStats.stdErr.empty() )
+             m_xml.scopedElement( "StdErr" ).writeText( trim( testCaseStats.stdErr ), XmlFormatting::Newline );
+ 
+         m_xml.endElement();
+     }
+ 
+     void XmlReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
+         StreamingReporterBase::testGroupEnded( testGroupStats );
+         // TODO: Check testGroupStats.aborting and act accordingly.
+         m_xml.scopedElement( "OverallResults" )
+             .writeAttribute( "successes", testGroupStats.totals.assertions.passed )
+             .writeAttribute( "failures", testGroupStats.totals.assertions.failed )
+             .writeAttribute( "expectedFailures", testGroupStats.totals.assertions.failedButOk );
+         m_xml.scopedElement( "OverallResultsCases")
+             .writeAttribute( "successes", testGroupStats.totals.testCases.passed )
+             .writeAttribute( "failures", testGroupStats.totals.testCases.failed )
+             .writeAttribute( "expectedFailures", testGroupStats.totals.testCases.failedButOk );
+         m_xml.endElement();
+     }
+ 
+     void XmlReporter::testRunEnded( TestRunStats const& testRunStats ) {
+         StreamingReporterBase::testRunEnded( testRunStats );
+         m_xml.scopedElement( "OverallResults" )
+             .writeAttribute( "successes", testRunStats.totals.assertions.passed )
+             .writeAttribute( "failures", testRunStats.totals.assertions.failed )
+             .writeAttribute( "expectedFailures", testRunStats.totals.assertions.failedButOk );
+         m_xml.scopedElement( "OverallResultsCases")
+             .writeAttribute( "successes", testRunStats.totals.testCases.passed )
+             .writeAttribute( "failures", testRunStats.totals.testCases.failed )
+             .writeAttribute( "expectedFailures", testRunStats.totals.testCases.failedButOk );
+         m_xml.endElement();
+     }
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+     void XmlReporter::benchmarkPreparing(std::string const& name) {
+         m_xml.startElement("BenchmarkResults")
+             .writeAttribute("name", name);
+     }
+ 
+     void XmlReporter::benchmarkStarting(BenchmarkInfo const &info) {
+         m_xml.writeAttribute("samples", info.samples)
+             .writeAttribute("resamples", info.resamples)
+             .writeAttribute("iterations", info.iterations)
+             .writeAttribute("clockResolution", info.clockResolution)
+             .writeAttribute("estimatedDuration", info.estimatedDuration)
+             .writeComment("All values in nano seconds");
+     }
+ 
+     void XmlReporter::benchmarkEnded(BenchmarkStats<> const& benchmarkStats) {
+         m_xml.startElement("mean")
+             .writeAttribute("value", benchmarkStats.mean.point.count())
+             .writeAttribute("lowerBound", benchmarkStats.mean.lower_bound.count())
+             .writeAttribute("upperBound", benchmarkStats.mean.upper_bound.count())
+             .writeAttribute("ci", benchmarkStats.mean.confidence_interval);
+         m_xml.endElement();
+         m_xml.startElement("standardDeviation")
+             .writeAttribute("value", benchmarkStats.standardDeviation.point.count())
+             .writeAttribute("lowerBound", benchmarkStats.standardDeviation.lower_bound.count())
+             .writeAttribute("upperBound", benchmarkStats.standardDeviation.upper_bound.count())
+             .writeAttribute("ci", benchmarkStats.standardDeviation.confidence_interval);
+         m_xml.endElement();
+         m_xml.startElement("outliers")
+             .writeAttribute("variance", benchmarkStats.outlierVariance)
+             .writeAttribute("lowMild", benchmarkStats.outliers.low_mild)
+             .writeAttribute("lowSevere", benchmarkStats.outliers.low_severe)
+             .writeAttribute("highMild", benchmarkStats.outliers.high_mild)
+             .writeAttribute("highSevere", benchmarkStats.outliers.high_severe);
+         m_xml.endElement();
+         m_xml.endElement();
+     }
+ 
+     void XmlReporter::benchmarkFailed(std::string const &error) {
+         m_xml.scopedElement("failed").
+             writeAttribute("message", error);
+         m_xml.endElement();
+     }
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+     CATCH_REGISTER_REPORTER( "xml", XmlReporter )
+ 
+ } // end namespace Catch
+ 
+ #if defined(_MSC_VER)
+ #pragma warning(pop)
+ #endif
+ // end catch_reporter_xml.cpp
+ 
+ namespace Catch {
+     LeakDetector leakDetector;
+ }
+ 
+ #ifdef __clang__
+ #pragma clang diagnostic pop
+ #endif
+ 
+ // end catch_impl.hpp
+ #endif
+ 
+ #ifdef CATCH_CONFIG_MAIN
+ // start catch_default_main.hpp
+ 
+ #ifndef __OBJC__
+ 
+ #ifndef CATCH_INTERNAL_CDECL
+ #ifdef _MSC_VER
+ #define CATCH_INTERNAL_CDECL __cdecl
+ #else
+ #define CATCH_INTERNAL_CDECL
+ #endif
+ #endif
+ 
+ #if defined(CATCH_CONFIG_WCHAR) && defined(CATCH_PLATFORM_WINDOWS) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
+ // Standard C/C++ Win32 Unicode wmain entry point
+ extern "C" int CATCH_INTERNAL_CDECL wmain (int argc, wchar_t * argv[], wchar_t * []) {
+ #else
+ // Standard C/C++ main entry point
+ int CATCH_INTERNAL_CDECL main (int argc, char * argv[]) {
+ #endif
+ 
+     return Catch::Session().run( argc, argv );
+ }
+ 
+ #else // __OBJC__
+ 
+ // Objective-C entry point
+ int main (int argc, char * const argv[]) {
+ #if !CATCH_ARC_ENABLED
+     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+ #endif
+ 
+     Catch::registerTestMethods();
+     int result = Catch::Session().run( argc, (char**)argv );
+ 
+ #if !CATCH_ARC_ENABLED
+     [pool drain];
+ #endif
+ 
+     return result;
+ }
+ 
+ #endif // __OBJC__
+ 
+ // end catch_default_main.hpp
+ #endif
+ 
+ #if !defined(CATCH_CONFIG_IMPL_ONLY)
+ 
+ #ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
+ #  undef CLARA_CONFIG_MAIN
+ #endif
+ 
+ #if !defined(CATCH_CONFIG_DISABLE)
+ //////
+ // If this config identifier is defined then all CATCH macros are prefixed with CATCH_
+ #ifdef CATCH_CONFIG_PREFIX_ALL
+ 
+ #define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ #define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+ 
+ #define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ #define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
+ #define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
+ #endif// CATCH_CONFIG_DISABLE_MATCHERS
+ #define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ 
+ #define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+ #define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
+ 
+ #define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
+ #define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
+ 
+ #define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ 
+ #define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
+ #define CATCH_UNSCOPED_INFO( msg ) INTERNAL_CATCH_UNSCOPED_INFO( "CATCH_UNSCOPED_INFO", msg )
+ #define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
+ #define CATCH_CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CATCH_CAPTURE",__VA_ARGS__ )
+ 
+ #define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
+ #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
+ #define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
+ #define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+ #define CATCH_DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
+ #define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ #define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ 
+ #define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
+ #else
+ #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
+ #endif
+ 
+ #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
+ #define CATCH_STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__ ,      #__VA_ARGS__ );     CATCH_SUCCEED( #__VA_ARGS__ )
+ #define CATCH_STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); CATCH_SUCCEED( #__VA_ARGS__ )
+ #else
+ #define CATCH_STATIC_REQUIRE( ... )       CATCH_REQUIRE( __VA_ARGS__ )
+ #define CATCH_STATIC_REQUIRE_FALSE( ... ) CATCH_REQUIRE_FALSE( __VA_ARGS__ )
+ #endif
+ 
+ // "BDD-style" convenience wrappers
+ #define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
+ #define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
+ #define CATCH_GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
+ #define CATCH_AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
+ #define CATCH_WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
+ #define CATCH_AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
+ #define CATCH_THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
+ #define CATCH_AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ #define CATCH_BENCHMARK(...) \
+     INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(C_A_T_C_H_B_E_N_C_H_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
+ #define CATCH_BENCHMARK_ADVANCED(name) \
+     INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(C_A_T_C_H_B_E_N_C_H_), name)
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+ // If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
+ #else
+ 
+ #define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
+ #define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+ 
+ #define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ #define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
+ #define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ 
+ #define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+ #define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
+ 
+ #define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
+ #define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
+ 
+ #define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ 
+ #define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
+ #define UNSCOPED_INFO( msg ) INTERNAL_CATCH_UNSCOPED_INFO( "UNSCOPED_INFO", msg )
+ #define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
+ #define CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CAPTURE",__VA_ARGS__ )
+ 
+ #define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
+ #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
+ #define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
+ #define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+ #define DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
+ #define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
+ #define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+ #define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ )
+ #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
+ #define TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
+ #define TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #else
+ #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
+ #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ ) )
+ #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
+ #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
+ #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ ) )
+ #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ ) )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
+ #define TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE( __VA_ARGS__ ) )
+ #define TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
+ #endif
+ 
+ #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
+ #define STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__,  #__VA_ARGS__ ); SUCCEED( #__VA_ARGS__ )
+ #define STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); SUCCEED( "!(" #__VA_ARGS__ ")" )
+ #else
+ #define STATIC_REQUIRE( ... )       REQUIRE( __VA_ARGS__ )
+ #define STATIC_REQUIRE_FALSE( ... ) REQUIRE_FALSE( __VA_ARGS__ )
+ #endif
+ 
+ #endif
+ 
+ #define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )
+ 
+ // "BDD-style" convenience wrappers
+ #define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
+ #define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
+ 
+ #define GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
+ #define AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
+ #define WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
+ #define AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
+ #define THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
+ #define AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )
+ 
+ #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+ #define BENCHMARK(...) \
+     INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(C_A_T_C_H_B_E_N_C_H_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
+ #define BENCHMARK_ADVANCED(name) \
+     INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(C_A_T_C_H_B_E_N_C_H_), name)
+ #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+ 
+ using Catch::Detail::Approx;
+ 
+ #else // CATCH_CONFIG_DISABLE
+ 
+ //////
+ // If this config identifier is defined then all CATCH macros are prefixed with CATCH_
+ #ifdef CATCH_CONFIG_PREFIX_ALL
+ 
+ #define CATCH_REQUIRE( ... )        (void)(0)
+ #define CATCH_REQUIRE_FALSE( ... )  (void)(0)
+ 
+ #define CATCH_REQUIRE_THROWS( ... ) (void)(0)
+ #define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
+ #define CATCH_REQUIRE_THROWS_WITH( expr, matcher )     (void)(0)
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+ #endif// CATCH_CONFIG_DISABLE_MATCHERS
+ #define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)
+ 
+ #define CATCH_CHECK( ... )         (void)(0)
+ #define CATCH_CHECK_FALSE( ... )   (void)(0)
+ #define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
+ #define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
+ #define CATCH_CHECK_NOFAIL( ... )  (void)(0)
+ 
+ #define CATCH_CHECK_THROWS( ... )  (void)(0)
+ #define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
+ #define CATCH_CHECK_THROWS_WITH( expr, matcher )     (void)(0)
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define CATCH_CHECK_NOTHROW( ... ) (void)(0)
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CATCH_CHECK_THAT( arg, matcher )   (void)(0)
+ 
+ #define CATCH_REQUIRE_THAT( arg, matcher ) (void)(0)
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ 
+ #define CATCH_INFO( msg )          (void)(0)
+ #define CATCH_UNSCOPED_INFO( msg ) (void)(0)
+ #define CATCH_WARN( msg )          (void)(0)
+ #define CATCH_CAPTURE( msg )       (void)(0)
+ 
+ #define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ #define CATCH_METHOD_AS_TEST_CASE( method, ... )
+ #define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
+ #define CATCH_SECTION( ... )
+ #define CATCH_DYNAMIC_SECTION( ... )
+ #define CATCH_FAIL( ... ) (void)(0)
+ #define CATCH_FAIL_CHECK( ... ) (void)(0)
+ #define CATCH_SUCCEED( ... ) (void)(0)
+ 
+ #define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
+ #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__)
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #else
+ #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__) )
+ #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__) )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ ) )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #endif
+ 
+ // "BDD-style" convenience wrappers
+ #define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ #define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ), className )
+ #define CATCH_GIVEN( desc )
+ #define CATCH_AND_GIVEN( desc )
+ #define CATCH_WHEN( desc )
+ #define CATCH_AND_WHEN( desc )
+ #define CATCH_THEN( desc )
+ #define CATCH_AND_THEN( desc )
+ 
+ #define CATCH_STATIC_REQUIRE( ... )       (void)(0)
+ #define CATCH_STATIC_REQUIRE_FALSE( ... ) (void)(0)
+ 
+ // If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
+ #else
+ 
+ #define REQUIRE( ... )       (void)(0)
+ #define REQUIRE_FALSE( ... ) (void)(0)
+ 
+ #define REQUIRE_THROWS( ... ) (void)(0)
+ #define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
+ #define REQUIRE_THROWS_WITH( expr, matcher ) (void)(0)
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define REQUIRE_NOTHROW( ... ) (void)(0)
+ 
+ #define CHECK( ... ) (void)(0)
+ #define CHECK_FALSE( ... ) (void)(0)
+ #define CHECKED_IF( ... ) if (__VA_ARGS__)
+ #define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
+ #define CHECK_NOFAIL( ... ) (void)(0)
+ 
+ #define CHECK_THROWS( ... )  (void)(0)
+ #define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
+ #define CHECK_THROWS_WITH( expr, matcher ) (void)(0)
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ #define CHECK_NOTHROW( ... ) (void)(0)
+ 
+ #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+ #define CHECK_THAT( arg, matcher ) (void)(0)
+ 
+ #define REQUIRE_THAT( arg, matcher ) (void)(0)
+ #endif // CATCH_CONFIG_DISABLE_MATCHERS
+ 
+ #define INFO( msg ) (void)(0)
+ #define UNSCOPED_INFO( msg ) (void)(0)
+ #define WARN( msg ) (void)(0)
+ #define CAPTURE( ... ) (void)(0)
+ 
+ #define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ #define METHOD_AS_TEST_CASE( method, ... )
+ #define REGISTER_TEST_CASE( Function, ... ) (void)(0)
+ #define SECTION( ... )
+ #define DYNAMIC_SECTION( ... )
+ #define FAIL( ... ) (void)(0)
+ #define FAIL_CHECK( ... ) (void)(0)
+ #define SUCCEED( ... ) (void)(0)
+ #define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ))
+ 
+ #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+ #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
+ #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
+ #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__)
+ #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #else
+ #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__) )
+ #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__) )
+ #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__ ) )
+ #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ ) )
+ #define TEMPLATE_PRODUCT_TEST_CASE( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
+ #endif
+ 
+ #define STATIC_REQUIRE( ... )       (void)(0)
+ #define STATIC_REQUIRE_FALSE( ... ) (void)(0)
+ 
+ #endif
+ 
+ #define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
+ 
+ // "BDD-style" convenience wrappers
+ #define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ) )
+ #define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( C_A_T_C_H_T_E_S_T_ ), className )
+ 
+ #define GIVEN( desc )
+ #define AND_GIVEN( desc )
+ #define WHEN( desc )
+ #define AND_WHEN( desc )
+ #define THEN( desc )
+ #define AND_THEN( desc )
+ 
+ using Catch::Detail::Approx;
+ 
+ #endif
+ 
+ #endif // ! CATCH_CONFIG_IMPL_ONLY
+ 
+ // start catch_reenable_warnings.h
+ 
+ 
+ #ifdef __clang__
+ #    ifdef __ICC // icpc defines the __clang__ macro
+ #        pragma warning(pop)
+ #    else
+ #        pragma clang diagnostic pop
+ #    endif
+ #elif defined __GNUC__
+ #    pragma GCC diagnostic pop
+ #endif
+ 
+ // end catch_reenable_warnings.h
+ // end catch.hpp
+ #endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
+ 
\ No newline at end of file