X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a9a0ceca5b549414a6119e98bc6d868c071a8b1b..50e27899137071a7379e0bcca3ced4097d982e5b:/include/wx/defs.h

diff --git a/include/wx/defs.h b/include/wx/defs.h
index d5fc6c3c56..b3ae230a05 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -523,6 +523,17 @@ typedef int wxWindowID;
     #define wxDEPRECATED(x) x
 #endif
 
+/*
+   Special variant of the macro above which should be used for the functions
+   which are deprecated but called by wx itself: this often happens with
+   deprecated virtual functions which are called by the library.
+ */
+#ifdef WXBUILDING
+#   define wxDEPRECATED_BUT_USED_INTERNALLY(x) x
+#else
+#   define wxDEPRECATED_BUT_USED_INTERNALLY(x) wxDEPRECATED(x)
+#endif
+
 /*  everybody gets the assert and other debug macros */
 #include "wx/debug.h"
 
@@ -1141,6 +1152,18 @@ typedef float wxFloat32;
 #   endif
 #endif /* wxUSE_WCHAR_T */
 
+/*
+   This constant should be used instead of NULL in vararg functions taking
+   wxChar* arguments: passing NULL (which is the same as 0, unless the compiler
+   defines it specially, e.g. like gcc does with its __null built-in) doesn't
+   work in this case as va_arg() wouldn't interpret the integer 0 correctly
+   when trying to convert it to a pointer on architectures where sizeof(int) is
+   strictly less than sizeof(void *).
+
+   Examples of places where this must be used include wxFileTypeInfo ctor.
+ */
+#define wxNullPtr ((void *)NULL)
+
 /*  ---------------------------------------------------------------------------- */
 /*  byte ordering related definition and macros */
 /*  ---------------------------------------------------------------------------- */