document various enumerations defined in defs.h; give a name to the anonymous enum...

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

diff --git a/include/wx/debug.h b/include/wx/debug.h
index e1d1f8a8212e6e748a363e06dd92c4cf91075ea1..fab0b7c3b3d118b27ea8d9c368970055d76479ce 100644 (file)
--- a/include/wx/debug.h
+++ b/include/wx/debug.h
@@ -14,12 +14,14 @@
 #ifndef   _WX_DEBUG_H_
 #define   _WX_DEBUG_H_
 
 #ifndef   _WX_DEBUG_H_
 #define   _WX_DEBUG_H_
 

+#ifndef __WXPALMOS5__

 #ifndef __WXWINCE__
 #include  <assert.h>
 #endif
 #ifndef __WXWINCE__
 #include  <assert.h>
 #endif

+#endif // ! __WXPALMOS5__

 #include  <limits.h>            /*  for CHAR_BIT used below */
 
 #include  <limits.h>            /*  for CHAR_BIT used below */
 

-#include  "wx/wxchar.h"         /*  for __TFILE__ and wxChar */
+#include  "wx/chartype.h"     /*  for __TFILE__ and wxChar */

 
 /*  ---------------------------------------------------------------------------- */
 /*  Defines controlling the debugging macros */
 
 /*  ---------------------------------------------------------------------------- */
 /*  Defines controlling the debugging macros */


@@ -47,10 +49,28 @@
     #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 */
 /*  */

-/*  All debugging macros rely on ASSERT() which in turn calls user-defined */
+/*  All debugging macros rely on ASSERT() which in turn calls the user-defined */

 /*  OnAssert() function. To keep things simple, it's called even when the */
 /*  expression is true (i.e. everything is ok) and by default does nothing: just */
 /*  returns the same value back. But if you redefine it to do something more sexy */
 /*  OnAssert() function. To keep things simple, it's called even when the */
 /*  expression is true (i.e. everything is ok) and by default does nothing: just */
 /*  returns the same value back. But if you redefine it to do something more sexy */


@@ -74,52 +94,120 @@
   /*
     This function is called whenever one of debugging macros fails (i.e.
     condition is false in an assertion). To customize its behaviour, override
   /*
     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().
+    wxApp::OnAssertFailure().

 
     Parameters:
        szFile and nLine - file name and line number of the ASSERT
 
     Parameters:
        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
   */
        szCond           - text form of the condition which failed
        szMsg            - optional message explaining the reason
   */

+
+  /* this version is for compatibility with wx 2.8 Unicode build only: */

   extern void WXDLLIMPEXP_BASE wxOnAssert(const wxChar *szFile,
                                           int nLine,
   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);
 

+#if wxUSE_UNICODE
+  /* char versions are used by debugging macros; we have to provide
+     wxChar* szMsg version because it's common to use _T() in the macros
+     and finally, we can't use const wx(char)* szMsg = NULL, because that
+     would be ambiguous: */
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const char *szFile,
+                                          int nLine,
+                                          const char *szFunc,
+                                          const char *szCond);
+
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const char *szFile,
+                                          int nLine,
+                                          const char *szFunc,
+                                          const char *szCond,
+                                          const char *szMsg);
+
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const char *szFile,
+                                          int nLine,
+                                          const char *szFunc,
+                                          const char *szCond,
+                                          const wxChar *szMsg);
+#endif /* wxUSE_UNICODE */
+
+  class WXDLLIMPEXP_FWD_BASE wxString;
+  class WXDLLIMPEXP_FWD_BASE wxCStrData;
+
+  /* these two work when szMsg passed to debug macro is a string,
+     we also have to provide wxCStrData overload to resolve ambiguity
+     which would otherwise arise from wxASSERT( s.c_str() ): */
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const wxString& szFile,
+                                          int nLine,
+                                          const wxString& szFunc,
+                                          const wxString& szCond,
+                                          const wxString& szMsg);
+
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const wxString& szFile,
+                                          int nLine,
+                                          const wxString& szFunc,
+                                          const wxString& szCond);
+
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const char *szFile,
+                                          int nLine,
+                                          const char *szFunc,
+                                          const char *szCond,
+                                          const wxCStrData& msg);
+
+  extern void WXDLLIMPEXP_BASE wxOnAssert(const char *szFile,
+                                          int nLine,
+                                          const char *szFunc,
+                                          const char *szCond,
+                                          const wxString& szMsg);
+

   /*  call this function to break into the debugger unconditionally (assuming */
   /*  the program is running under debugger, of course) */
   extern void WXDLLIMPEXP_BASE wxTrap();
 
   /*  generic assert macro */
   /*  call this function to break into the debugger unconditionally (assuming */
   /*  the program is running under debugger, of course) */
   extern void WXDLLIMPEXP_BASE wxTrap();
 
   /*  generic assert macro */

-  #define wxASSERT(cond) wxASSERT_MSG(cond, NULL)
+  #define wxASSERT(cond) wxASSERT_MSG(cond, (const char*)NULL)

 
 

-  /*  assert with additional message explaining it's cause */
-  #define wxASSERT_MSG(cond, msg) \
-    if (cond) ; else wxOnAssert(__TFILE__, __LINE__, _T(#cond), msg)
+
+  /*  assert with additional message explaining its cause */
+
+  /*  Note: some compilers will give  a warning (such as           */
+  /*  "possible unwanted ;") when using a ";" instead of the "{}". */
+  #define wxASSERT_MSG(cond, msg)                                           \
+    if ( cond )                                                             \
+    {}                                                                      \
+    else                                                                    \
+        wxOnAssert(__FILE__, __LINE__, __WXFUNCTION__, #cond, msg)

 
   /*  special form of assert: always triggers it (in debug mode) */
 
   /*  special form of assert: always triggers it (in debug mode) */

-  #define wxFAIL wxFAIL_MSG(NULL)
+  #define wxFAIL wxFAIL_MSG((const char*)NULL)

 
   /*  FAIL with some message */
 
   /*  FAIL with some message */

-  #define wxFAIL_MSG(msg) wxOnAssert(__TFILE__, __LINE__, wxT("wxAssertFailure"), msg)
+  #define wxFAIL_MSG(msg) wxFAIL_COND_MSG("wxAssertFailure", msg)

 
 

-  /*  an assert helper used to avoid warning when testing constant expressions, */
+  /*  FAIL with some message and a condition */
+  #define wxFAIL_COND_MSG(cond, msg)                                          \
+      wxOnAssert(__FILE__, __LINE__,  __WXFUNCTION__, 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 */
   /*  expression being always true, but not using */
   /*  wxASSERT( wxAssertIsEqual(sizeof(int), 4) ) */
   /*  */
   /*  i.e. wxASSERT( sizeof(int) == 4 ) can generate a compiler warning about */
   /*  expression being always true, but not using */
   /*  wxASSERT( wxAssertIsEqual(sizeof(int), 4) ) */
   /*  */

-  /*  NB: this is made obsolete by wxCOMPILE_TIME_ASSERT() and shouldn't be */
-  /*      used any longer */
+  /*  NB: this is made obsolete by wxCOMPILE_TIME_ASSERT() and should no */
+  /*      longer be used. */

   extern bool WXDLLIMPEXP_BASE wxAssertIsEqual(int x, int y);
 #else
   #define wxTrap()
 
   extern bool WXDLLIMPEXP_BASE wxAssertIsEqual(int x, int y);
 #else
   #define wxTrap()
 

-  /*  nothing to do in release modes (hopefully at this moment there are */
+  /*  nothing to do in release mode (hopefully at this moment there are */

   /*  no more bugs ;-) */
   #define wxASSERT(cond)
   /*  no more bugs ;-) */
   #define wxASSERT(cond)

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

   #define wxFAIL
   #define wxFAIL_MSG(msg)
   #define wxFAIL
   #define wxFAIL_MSG(msg)

+  #define wxFAIL_COND_MSG(cond, msg)

 #endif  /* __WXDEBUG__ */
 
 #ifdef __cplusplus
 #endif  /* __WXDEBUG__ */
 
 #ifdef __cplusplus


@@ -130,26 +218,35 @@
 
 #define wxAssertFailure wxFalse
 
 
 #define wxAssertFailure wxFalse
 

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

 
 /*
   These macros must be used only in invalid situation: for example, an
 
 /*
   These macros must be used only in invalid situation: for example, an

-  invalid parameter (NULL pointer) is passed to a function. Instead of
+  invalid parameter (e.g. a NULL pointer) is passed to a function. Instead of

   dereferencing it and causing core dump the function might try using
   CHECK( p != NULL ) or CHECK( p != NULL, return LogError("p is NULL!!") )
 */
 
 /*  check that expression is true, "return" if not (also FAILs in debug mode) */
   dereferencing it and causing core dump the function might try using
   CHECK( p != NULL ) or CHECK( p != NULL, return LogError("p is NULL!!") )
 */
 
 /*  check that expression is true, "return" if not (also FAILs in debug mode) */

-#define wxCHECK(x, rc)            wxCHECK_MSG(x, rc, NULL)
+#define wxCHECK(cond, rc)            wxCHECK_MSG(cond, rc, (const char*)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)   wxCHECK2_MSG(x, return rc, msg)
+#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)           wxCHECK2_MSG(x, op, NULL)
+#define wxCHECK2(cond, op)           wxCHECK2_MSG(cond, op, (const char*)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) ; else do { wxFAIL_MSG(msg); op; } while (0)
+
+#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 */
 /*  */


@@ -157,7 +254,7 @@
 /*      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)       wxCHECK2_MSG(x, return, msg)
+#define wxCHECK_RET(cond, msg)       wxCHECK2_MSG(cond, return, msg)

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