A question about the precompiled directive ASSERT

Hi, everyone!

Please look at the following code,

--------
#if ASSERT
sprintf (s, "_Assert: %s, %d",__FILE__, __LINE__ );
#else
//...
#endif
--------

I want to know where is the precompiled directive ASSERT defined?
Is it compiler system defined variable? What is the meaning and
function of it?


Thanks in advance,
George

It depends on your compiler; it's my understanding that ASSERT
isn't part of the C standard so using it might be nonportable
[as opposed to assert(), which should be portable]. Anyway,
in my compiler, ASSERT is #define'd in crtdbg.h, afx.h, and I'm sure
it's #define'd other ways in other places as well. Do a grep or
similar search through your compiler's header files and find out
for yourself where it'll be #define'd on your system.

--Paul

Thanks!

George

Quote:

---

Originally posted by PaulWendt
It depends on your compiler; it's my understanding that ASSERT
isn't part of the C standard so using it might be nonportable
[as opposed to assert(), which should be portable]. Anyway,
in my compiler, ASSERT is #define'd in crtdbg.h, afx.h, and I'm sure
it's #define'd other ways in other places as well. Do a grep or
similar search through your compiler's header files and find out
for yourself where it'll be #define'd on your system.

--Paul

---

Moreover, ASSERT is a non-standard Microsoft MFC substitution for standard C assert macro. Nota bene, ASSERT is in effect only when the MFC macro _DEBUG defined, opposed to assert, which depends on the standard NDEBUG macro.