Thread: string operation and related exception

Originally Posted by George2

I am wondering how assert is implemented internally? Using some soft interrupt or through by exception handling approach?

something like

Code:

#undef  assert

#ifdef  NDEBUG

#define assert(exp)     ((void)0)

#else

#ifdef  __cplusplus
extern "C" {
#endif

_CRTIMP void __cdecl _assert(void *, void *, unsigned);

#ifdef  __cplusplus
}
#endif

#define assert(exp) (void)( (exp) || (_assert(#exp, __FILE__, __LINE__), 0) )

#endif  /* NDEBUG */

<removed copyrighted code, sorry - CornedBee>

So it is just an __crtMessageBoxA call followed by _DbgBreak to start debugging