DMC bug workaround.

[wxWidgets.git] / include / wx / debug.h

diff --git a/include/wx/debug.h b/include/wx/debug.h
index 3b8387efb37cbeaf508efc971197c51b949924f0..06f302d8206a1758bb30619ee8513bf09cca14de 100644 (file)
--- a/include/wx/debug.h
+++ b/include/wx/debug.h
@@ -47,6 +47,24 @@
     #endif /*  !WXDEBUG */
 #endif /*  __WXDEBUG__ */
 
     #endif /*  !WXDEBUG */
 #endif /*  __WXDEBUG__ */
 

+#ifndef __WXFUNCTION__
+    /* TODO: add more compilers supporting __FUNCTION__ */
+    #if defined(__DMC__)
+        /* 
+           __FUNCTION__ happens to be not defined within class members
+           http://www.digitalmars.com/drn-bin/wwwnews?c%2B%2B.beta/485
+        */
+        #define __WXFUNCTION__ (NULL)
+    #elif defined(__GNUC__) || \
+          (defined(_MSC_VER) && _MSC_VER >= 1300) || \
+          defined(__FUNCTION__)
+        #define __WXFUNCTION__ __FUNCTION__
+    #else
+        /* still define __WXFUNCTION__ to avoid #ifdefs elsewhere */
+        #define __WXFUNCTION__ (NULL)
+    #endif
+#endif /* __WXFUNCTION__ already defined */
+

 /*  ---------------------------------------------------------------------------- */
 /*  Debugging macros */
 /*  */
 /*  ---------------------------------------------------------------------------- */
 /*  Debugging macros */
 /*  */


@@ -72,16 +90,19 @@
 /*  NB: these functions are implemented in src/common/appcmn.cpp */
 #if defined(__cplusplus) && defined(__WXDEBUG__)
   /*
 /*  NB: these functions are implemented in src/common/appcmn.cpp */
 #if defined(__cplusplus) && defined(__WXDEBUG__)
   /*

-    this function may be redefined to do something non trivial and is called
-    whenever one of debugging macros fails (i.e. condition is false in an
-    assertion)
+    This function is called whenever one of debugging macros fails (i.e.
+    condition is false in an assertion). To customize its behaviour, override
+    wxApp::OnAssert().

 
 

-    parameters:
+    Parameters:

        szFile and nLine - file name and line number of the ASSERT
        szFile and nLine - file name and line number of the ASSERT

+       szFunc           - function name of the ASSERT, may be NULL (NB: ASCII)
+       szCond           - text form of the condition which failed

        szMsg            - optional message explaining the reason
   */
   extern void WXDLLIMPEXP_BASE wxOnAssert(const wxChar *szFile,
                                           int nLine,
        szMsg            - optional message explaining the reason
   */
   extern void WXDLLIMPEXP_BASE wxOnAssert(const wxChar *szFile,
                                           int nLine,

+                                          const char *szFunc,

                                           const wxChar *szCond,
                                           const wxChar *szMsg = NULL);
 
                                           const wxChar *szCond,
                                           const wxChar *szMsg = NULL);
 


@@ -89,23 +110,25 @@
   /*  the program is running under debugger, of course) */
   extern void WXDLLIMPEXP_BASE wxTrap();
 
   /*  the program is running under debugger, of course) */
   extern void WXDLLIMPEXP_BASE wxTrap();
 

-  /*  helper function used to implement wxASSERT and wxASSERT_MSG */
-  /*  */
-  /*  note using "int" and not "bool" for cond to avoid VC++ warnings about */
-  /*  implicit conversions when doing "wxAssert( pointer )" and also use of */
-  /*  "!!cond" below to ensure that everything is converted to int */
-  extern void WXDLLIMPEXP_BASE wxAssert(int cond,
-                                        const wxChar *szFile,
-                                        int nLine,
-                                        const wxChar *szCond,
-                                        const wxChar *szMsg = NULL) ;
-

   /*  generic assert macro */
   /*  generic assert macro */

-  #define wxASSERT(cond) wxAssert(!!(cond), __TFILE__, __LINE__, _T(#cond))
+  #define wxASSERT(cond) wxASSERT_MSG(cond, NULL)

 
   /*  assert with additional message explaining it's cause */
 
   /*  assert with additional message explaining it's cause */

-  #define wxASSERT_MSG(cond, msg) \
-    wxAssert(!!(cond), __TFILE__, __LINE__, _T(#cond), msg)
+  #define wxASSERT_MSG(cond, msg)                                             \
+    if ( cond )                                                               \
+        ;                                                                     \
+    else                                                                      \
+        wxOnAssert(__TFILE__, __LINE__, __WXFUNCTION__, _T(#cond), msg)
+
+  /*  special form of assert: always triggers it (in debug mode) */
+  #define wxFAIL wxFAIL_MSG(NULL)
+
+  /*  FAIL with some message */
+  #define wxFAIL_MSG(msg) wxFAIL_COND_MSG("wxAssertFailure", msg)
+
+  /*  FAIL with some message and a condition */
+  #define wxFAIL_COND_MSG(cond, msg)                                          \
+      wxOnAssert(__TFILE__, __LINE__,  __WXFUNCTION__, _T(cond), msg)

 
   /*  an assert helper used to avoid warning when testing constant expressions, */
   /*  i.e. wxASSERT( sizeof(int) == 4 ) can generate a compiler warning about */
 
   /*  an assert helper used to avoid warning when testing constant expressions, */
   /*  i.e. wxASSERT( sizeof(int) == 4 ) can generate a compiler warning about */


@@ -121,23 +144,20 @@
   /*  nothing to do in release modes (hopefully at this moment there are */
   /*  no more bugs ;-) */
   #define wxASSERT(cond)
   /*  nothing to do in release modes (hopefully at this moment there are */
   /*  no more bugs ;-) */
   #define wxASSERT(cond)

-  #define wxASSERT_MSG(x, m)
+  #define wxASSERT_MSG(cond, msg)
+  #define wxFAIL
+  #define wxFAIL_MSG(msg)
+  #define wxFAIL_COND_MSG(cond, msg)

 #endif  /* __WXDEBUG__ */
 
 #ifdef __cplusplus
     /*  Use of wxFalse instead of false suppresses compiler warnings about testing */
     /*  constant expression */
 #endif  /* __WXDEBUG__ */
 
 #ifdef __cplusplus
     /*  Use of wxFalse instead of false suppresses compiler warnings about testing */
     /*  constant expression */

-    WXDLLIMPEXP_DATA_BASE(extern const bool) wxFalse;
+    extern WXDLLIMPEXP_DATA_BASE(const bool) wxFalse;

 #endif
 
 #define wxAssertFailure wxFalse
 
 #endif
 
 #define wxAssertFailure wxFalse
 

-/*  special form of assert: always triggers it (in debug mode) */
-#define wxFAIL                 wxASSERT(wxAssertFailure)
-
-/*  FAIL with some message */
-#define wxFAIL_MSG(msg)        wxASSERT_MSG(wxAssertFailure, msg)
-

 /*  NB: the following macros work also in release mode! */
 
 /*
 /*  NB: the following macros work also in release mode! */
 
 /*


@@ -148,16 +168,24 @@
 */
 
 /*  check that expression is true, "return" if not (also FAILs in debug mode) */
 */
 
 /*  check that expression is true, "return" if not (also FAILs in debug mode) */

-#define wxCHECK(x, rc)            if (!(x)) {wxFAIL; return rc; }
+#define wxCHECK(cond, rc)            wxCHECK_MSG(cond, rc, NULL)

 
 /*  as wxCHECK but with a message explaining why we fail */
 
 /*  as wxCHECK but with a message explaining why we fail */

-#define wxCHECK_MSG(x, rc, msg)   if (!(x)) {wxFAIL_MSG(msg); return rc; }
+#define wxCHECK_MSG(cond, rc, msg)   wxCHECK2_MSG(cond, return rc, msg)

 
 /*  check that expression is true, perform op if not */
 
 /*  check that expression is true, perform op if not */

-#define wxCHECK2(x, op)           if (!(x)) {wxFAIL; op; }
+#define wxCHECK2(cond, op)           wxCHECK2_MSG(cond, op, NULL)

 
 /*  as wxCHECK2 but with a message explaining why we fail */
 
 /*  as wxCHECK2 but with a message explaining why we fail */

-#define wxCHECK2_MSG(x, op, msg)  if (!(x)) {wxFAIL_MSG(msg); op; }
+#define wxCHECK2_MSG(cond, op, msg)                                           \
+    if ( cond )                                                               \
+        ;                                                                     \
+    else                                                                      \
+    {                                                                         \
+        wxFAIL_COND_MSG(#cond, msg);                                          \
+        op;                                                                   \
+    }                                                                         \
+    struct wxDummyCheckStruct /* just to force a semicolon */

 
 /*  special form of wxCHECK2: as wxCHECK, but for use in void functions */
 /*  */
 
 /*  special form of wxCHECK2: as wxCHECK, but for use in void functions */
 /*  */


@@ -165,7 +193,7 @@
 /*      there is no other way to tell the caller what exactly went wrong */
 /*      from the void function (of course, the function shouldn't be void */
 /*      to begin with...) */
 /*      there is no other way to tell the caller what exactly went wrong */
 /*      from the void function (of course, the function shouldn't be void */
 /*      to begin with...) */

-#define wxCHECK_RET(x, msg)       if (!(x)) {wxFAIL_MSG(msg); return; }
+#define wxCHECK_RET(cond, msg)       wxCHECK2_MSG(cond, return, msg)

 
 /*  ---------------------------------------------------------------------------- */
 /*  Compile time asserts */
 
 /*  ---------------------------------------------------------------------------- */
 /*  Compile time asserts */


@@ -198,8 +226,17 @@
 
  It may be used both within a function and in the global scope.
 */
 
  It may be used both within a function and in the global scope.
 */

-#define wxCOMPILE_TIME_ASSERT(expr, msg) \
-    struct wxMAKE_UNIQUE_ASSERT_NAME { unsigned int msg: expr; }
+#if defined(__WATCOMC__) && defined(__cplusplus)
+    /* avoid "unused symbol" warning */
+    #define wxCOMPILE_TIME_ASSERT(expr, msg) \
+        class wxMAKE_UNIQUE_ASSERT_NAME { \
+          unsigned int msg: expr; \
+          wxMAKE_UNIQUE_ASSERT_NAME() { wxUnusedVar(msg); } \
+        }
+#else
+    #define wxCOMPILE_TIME_ASSERT(expr, msg) \
+        struct wxMAKE_UNIQUE_ASSERT_NAME { unsigned int msg: expr; }
+#endif

 
 /*
    When using VC++ 6 with "Edit and Continue" on, the compiler completely
 
 /*
    When using VC++ 6 with "Edit and Continue" on, the compiler completely


@@ -224,12 +261,15 @@
 /*  other miscellaneous debugger-related functions */
 /*  ---------------------------------------------------------------------------- */
 
 /*  other miscellaneous debugger-related functions */
 /*  ---------------------------------------------------------------------------- */
 

-/*  return true if we're running under debugger */
-/*  */
-/*  currently this only really works under Mac in CodeWarrior builds, it always */
-/*  returns false otherwise */
+/*
+    Return true if we're running under debugger.
+
+    Currently this only really works under Win32 and Mac in CodeWarrior builds,
+    it always returns false in other cases.
+ */

 #ifdef __cplusplus
 #ifdef __cplusplus

-    #ifdef __WXMAC__
+    /* ABX: check __WIN32__ instead of __WXMSW__ for the same MSWBase in any Win32 port */
+    #if defined(__WXMAC__) || defined(__WIN32__)

         extern bool WXDLLIMPEXP_BASE wxIsDebuggerRunning();
     #else /*  !Mac */
         inline bool wxIsDebuggerRunning() { return false; }
         extern bool WXDLLIMPEXP_BASE wxIsDebuggerRunning();
     #else /*  !Mac */
         inline bool wxIsDebuggerRunning() { return false; }


@@ -237,4 +277,3 @@
 #endif /* __cplusplus */
 
 #endif  /*  _WX_DEBUG_H_ */
 #endif /* __cplusplus */
 
 #endif  /*  _WX_DEBUG_H_ */

-