Base: modernize C++11

* use nullptr

src/Base/Interpreter.cpp

@@ -80,7 +80,7 @@ PyException::PyException()
         // destroyed, so we don't keep reference here to save book-keeping in
         // our copy constructor and destructor
         Py_DECREF(PP_last_exception_type);
-        PP_last_exception_type = 0;
+        PP_last_exception_type = nullptr;
 
     }
 

src/Base/Interpreter.h

@@ -116,14 +116,14 @@ protected:
     PyObject *_exceptionType;
 };
 
-inline Py::Object pyCall(PyObject *callable, PyObject *args=0) {
+inline Py::Object pyCall(PyObject *callable, PyObject *args=nullptr) {
     PyObject *result = PyObject_CallObject(callable, args);
     if(!result)
         throw Py::Exception();
     return Py::asObject(result);
 }
 
-inline Py::Object pyCallWithKeywords(PyObject *callable, PyObject *args, PyObject *kwds=0) {
+inline Py::Object pyCallWithKeywords(PyObject *callable, PyObject *args, PyObject *kwds=nullptr) {
     PyObject *result = PyObject_Call(callable, args, kwds);
     if(!result)
         throw Py::Exception();

src/Base/Parameter.cpp

@@ -595,7 +595,7 @@ std::vector<std::pair<std::string,unsigned long> > ParameterGrp::GetUnsignedMap(
     while ( pcTemp ) {
         Name = StrX(static_cast<DOMElement*>(pcTemp)->getAttributes()->getNamedItem(XStr("Name").unicodeForm())->getNodeValue()).c_str();
         // check on filter condition
-        if (sFilter == NULL || Name.find(sFilter)!= std::string::npos) {
+        if (sFilter == nullptr || Name.find(sFilter)!= std::string::npos) {
             vrValues.emplace_back(Name,
                                ( strtoul (StrX(static_cast<DOMElement*>(pcTemp)->getAttribute(XStr("Value").unicodeForm())).c_str(),nullptr,10) ));
         }
@@ -940,7 +940,7 @@ void ParameterGrp::Clear(void)
     }
 
     // searching all non-group nodes
-    for (DOMNode *child = _pGroupNode->getFirstChild(); child != 0;  child = child->getNextSibling()) {
+    for (DOMNode *child = _pGroupNode->getFirstChild(); child != nullptr;  child = child->getNextSibling()) {
         if (XMLString::compareString(child->getNodeName(), XStr("FCParamGroup").unicodeForm()) != 0)
             vecNodes.push_back(child);
     }

src/Base/PlacementPyImp.cpp

@@ -167,7 +167,7 @@ PyObject* PlacementPy::rotate(PyObject *args) {
     PyObject *obj1, *obj2;
     double angle;
     if (!PyArg_ParseTuple(args, "OOd", &obj1, &obj2, &angle))
-        return NULL;
+        return nullptr;
 
     try {
         Py::Sequence p1(obj1), p2(obj2);
@@ -182,7 +182,7 @@ PyObject* PlacementPy::rotate(PyObject *args) {
         Py_Return;
     }
     catch (const Py::Exception&) {
-        return NULL;
+        return nullptr;
     }
 }
 

src/Base/PyObjectBase.cpp

@@ -103,13 +103,13 @@ static void
 PyBaseProxy_dealloc(PyObject* self)
 {
     /* Clear weakrefs first before calling any destructors */
-    if (reinterpret_cast<PyBaseProxy*>(self)->weakreflist != NULL)
+    if (reinterpret_cast<PyBaseProxy*>(self)->weakreflist != nullptr)
         PyObject_ClearWeakRefs(self);
     Py_TYPE(self)->tp_free(self);
 }
 
 static PyTypeObject PyBaseProxyType = {
-    PyVarObject_HEAD_INIT(NULL, 0)
+    PyVarObject_HEAD_INIT(nullptr, 0)
     "PyBaseProxy",                                          /*tp_name*/
     sizeof(PyBaseProxy),                                    /*tp_basicsize*/
     0,                                                      /*tp_itemsize*/

src/Base/QuantityPyImp.cpp

@@ -345,7 +345,7 @@ static Quantity &pyToQuantity(Quantity &q, PyObject *pyobj) {
 
 PyObject* QuantityPy::number_add_handler(PyObject *self, PyObject *other)
 {
-    Quantity *pa=0, *pb=0;
+    Quantity *pa=nullptr, *pb=nullptr;
     Quantity a,b;
     PY_TRY {
         if (PyObject_TypeCheck(self, &(QuantityPy::Type)))
@@ -363,7 +363,7 @@ PyObject* QuantityPy::number_add_handler(PyObject *self, PyObject *other)
 
 PyObject* QuantityPy::number_subtract_handler(PyObject *self, PyObject *other)
 {
-    Quantity *pa=0, *pb=0;
+    Quantity *pa=nullptr, *pb=nullptr;
     Quantity a,b;
     PY_TRY {
         if (PyObject_TypeCheck(self, &(QuantityPy::Type)))
@@ -381,7 +381,7 @@ PyObject* QuantityPy::number_subtract_handler(PyObject *self, PyObject *other)
 
 PyObject* QuantityPy::number_multiply_handler(PyObject *self, PyObject *other)
 {
-    Quantity *pa=0, *pb=0;
+    Quantity *pa=nullptr, *pb=nullptr;
     Quantity a,b;
     PY_TRY {
         if (PyObject_TypeCheck(self, &(QuantityPy::Type)))
@@ -399,7 +399,7 @@ PyObject* QuantityPy::number_multiply_handler(PyObject *self, PyObject *other)
 
 PyObject * QuantityPy::number_divide_handler (PyObject *self, PyObject *other)
 {
-    Quantity *pa=0, *pb=0;
+    Quantity *pa=nullptr, *pb=nullptr;
     Quantity a,b;
     PY_TRY {
         if (PyObject_TypeCheck(self, &(QuantityPy::Type)))

src/Base/Rotation.cpp

@@ -849,7 +849,7 @@ const char *EulerSequenceNames[] = {
 const char * Rotation::eulerSequenceName(EulerSequence seq)
 {
     if (seq == Invalid || seq >= EulerSequenceLast)
-        return 0;
+        return nullptr;
     return EulerSequenceNames[seq-1];
 }
 

src/Base/RotationPyImp.cpp

@@ -280,7 +280,7 @@ PyObject* RotationPy::slerp(PyObject * args)
     PyObject *rot;
     double t;
     if (!PyArg_ParseTuple(args, "O!d", &(RotationPy::Type), &rot, &t))
-        return 0;
+        return nullptr;
     Rotation *rot0 = this->getRotationPtr();
     Rotation *rot1 = static_cast<RotationPy*>(rot)->getRotationPtr();
     Rotation sl = Rotation::slerp(*rot0, *rot1, t);
@@ -357,7 +357,7 @@ PyObject* RotationPy::toEulerAngles(PyObject * args)
 PyObject* RotationPy::toMatrix(PyObject * args)
 {
     if (!PyArg_ParseTuple(args, ""))
-        return NULL;
+        return nullptr;
     Base::Matrix4D mat;
     getRotationPtr()->getValue(mat);
     return new MatrixPy(new Matrix4D(mat));

src/Base/TimeInfo.cpp

@@ -62,7 +62,7 @@ void TimeInfo::setCurrent()
 {
 #if defined (FC_OS_BSD) || defined(FC_OS_LINUX) || defined(__MINGW32__)
     struct timeval t;
-    gettimeofday(&t, NULL);
+    gettimeofday(&t, nullptr);
     timebuffer.time = t.tv_sec;
     timebuffer.millitm = t.tv_usec / 1000;
 #elif defined(FC_OS_WIN32)