include/wx/msw/msvcrt.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/msvcrt.h
   3 // Purpose:     macros to use some non-standard features of MS Visual C++
   4 //              C run-time library
   5 // Author:      Vadim Zeitlin
   6 // Modified by:
   7 // Created:     31.01.1999
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) Vadim Zeitlin
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // the goal of this file is to define wxCrtSetDbgFlag() macro which may be
  14 // used like this:
  15 //      wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
  16 // to turn on memory leak checks for programs compiled with Microsoft Visual
  17 // C++ (5.0+). The macro will expand to nothing under other compilers.
  18
  19 #ifndef _MSW_MSVCRT_H_
  20 #define _MSW_MSVCRT_H_
  21
  22 // use debug CRT functions for memory leak detections in VC++ 5.0+ in debug
  23 // builds
  24 #undef wxUSE_VC_CRTDBG
  25 #if defined(__WXDEBUG__) && defined(__VISUALC__) && (__VISUALC__ >= 1000)
  26     // it doesn't combine well with wxWin own memory debugging methods
  27     #if !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__)
  28         #define wxUSE_VC_CRTDBG
  29     #endif
  30 #endif
  31
  32 #ifdef wxUSE_VC_CRTDBG
  33     // VC++ uses this macro as debug/release mode indicator
  34     #ifndef _DEBUG
  35         #define _DEBUG
  36     #endif
  37
  38     // Need to undef new if including crtdbg.h which redefines new itself
  39     #ifdef new
  40         #undef new
  41     #endif
  42
  43     // we need this to show file & line number of the allocation that caused
  44     // the leak
  45     #define _CRTDBG_MAP_ALLOC
  46     #include <stdlib.h>
  47     #include <crtdbg.h>
  48
  49     // this define works around a bug with inline declarations of new, see
  50     //
  51     //      http://support.microsoft.com/support/kb/articles/Q140/8/58.asp
  52     //
  53     // for the details
  54     #define new  new( _NORMAL_BLOCK, __FILE__, __LINE__)
  55
  56     #define wxCrtSetDbgFlag(flag) \
  57         _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | (flag))
  58 #else // !using VC CRT
  59     #define wxCrtSetDbgFlag(flag)
  60 #endif // wxUSE_VC_CRTDBG
  61
  62 #endif // _MSW_MSVCRT_H_
  63