App: modernize C++11

* use nullptr
2022-03-23 17:29:23 +01:00
parent 4183c45a01
commit 1a20b7f119
67 changed files with 647 additions and 643 deletions
--- a/src/App/DocumentObserver.h
+++ b/src/App/DocumentObserver.h
@@ -206,7 +206,7 @@ public:
    /** Return the old style sub-element name
     * @param index: if given, then return the element type, and extract the index
     */
-    std::string getOldElementName(int *index=0) const;
+    std::string getOldElementName(int *index=nullptr) const;

    /// Return the sub-object
    DocumentObject *getSubObject() const;