/**
-* Name: wx/debug.h
-* Purpose: Misc debug functions and macros
-* Author: Vadim Zeitlin
+* Name: wx/debug.h
+* Purpose: Misc debug functions and macros
+* Author: Vadim Zeitlin
* Modified by: Ryan Norton (Converted to C)
-* Created: 29/01/98
-* RCS-ID: $Id$
-* Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-* Licence: wxWindows licence
+* Created: 29/01/98
+* RCS-ID: $Id$
+* Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+* Licence: wxWindows licence
*/
/* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
#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 */
/* */
-/* 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 */
+/* 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 */
/* (popping up a message box in your favourite GUI, sending you e-mail or */
/* whatever) it will affect all ASSERTs, FAILs and CHECKs in your code. */
/* 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
+ 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,
+ const char *szFunc,
const wxChar *szCond,
const wxChar *szMsg = NULL);
/* 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 */
- #define wxASSERT(cond) wxAssert(!!(cond), __TFILE__, __LINE__, _T(#cond))
-
- /* assert with additional message explaining it's cause */
- #define wxASSERT_MSG(cond, msg) \
- wxAssert(!!(cond), __TFILE__, __LINE__, _T(#cond), msg)
-
- /* an assert helper used to avoid warning when testing constant expressions, */
+ #define wxASSERT(cond) wxASSERT_MSG(cond, NULL)
+
+
+ /* assert with additional message explaining its cause */
+
+ /* compilers can give a warning (such as "possible unwanted ;") when using */
+ /* the default definition of wxASSERT_MSG so we provide an alternative */
+ #if defined(__MWERKS__)
+ #define wxASSERT_MSG(cond, msg) \
+ if ( cond ) \
+ {} \
+ else \
+ wxOnAssert(__TFILE__, __LINE__, __WXFUNCTION__, _T(#cond), msg)
+ #else
+ #define wxASSERT_MSG(cond, msg) \
+ if ( cond ) \
+ ; \
+ else \
+ wxOnAssert(__TFILE__, __LINE__, __WXFUNCTION__, _T(#cond), msg)
+ #endif
+
+ /* 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 */
/* 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()
- /* 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)
- #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 */
+ /* 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
-/* 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 also work in release mode! */
/*
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) */
-#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 */
-#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 */
-#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 */
-#define wxCHECK2_MSG(x, op, msg) if (!(x)) {wxFAIL_MSG(msg); op; }
+
+/* see comment near the definition of wxASSERT_MSG for the # if/else reason */
+#if defined(__MWERKS__)
+ #define wxCHECK2_MSG(cond, op, msg) \
+ if ( cond ) \
+ {} \
+ else \
+ { \
+ wxFAIL_COND_MSG(#cond, msg); \
+ op; \
+ } \
+ struct wxDummyCheckStruct /* just to force a semicolon */
+#else
+ #define wxCHECK2_MSG(cond, op, msg) \
+ if ( cond ) \
+ ; \
+ else \
+ { \
+ wxFAIL_COND_MSG(#cond, msg); \
+ op; \
+ } \
+ struct wxDummyCheckStruct /* just to force a semicolon */
+#endif
/* special form of wxCHECK2: as wxCHECK, but for use in void functions */
/* */
/* 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 */
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
/* 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 __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; }
#endif /* __cplusplus */
#endif /* _WX_DEBUG_H_ */
-
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