From: Rozental, Gennadiy (gennadiy.rozental_at_[hidden])
Date: 2002-12-10 16:06:21
> >> > \runtime-link-dynamic\execution_monitor.obj
> >> >> ### mwcc Compiler:
> >> >> # File: ..\libs\test\src\execution_monitor.cpp
> >> >> # -----------------------------------------------
> >> >> # 157: case _CRT_ASSERT:
> >> >> # Error: ^^^^^^^^^^^
> >> >> # undefined identifier '_CRT_ASSERT'
> >> >> ### mwcc Compiler:
> >> >> # 161: case _CRT_ERROR:
> >> >> # Error: ^^^^^^^^^^
> >> >> # undefined identifier '_CRT_ERROR'
> >> >
> >> > This one appears to be caused by the fact that metrowerks
> >> tools does not
> >> > define the symbol _DEBUG in debug mode
> >>
> >> Why don't you fix that one, too?
> >> _DEBUG is an MSVC-specific symbol.
> >
> > MSVC toolset defines it.
>
> I see no evidence to support that claim.
>
> The msvc compiler flags which turn on debug symbols, etc., also cause
> _DEBUG to be defined. The toolset never touches "_DEBUG".
Whatever. The net result is that C runtime debug hooks are gets defined in
debug mode.
> > While metrowerks don't. Do you want me to fix the latter?
>
> I don't think I want you to "fix" it. As a user, you're not allowed
> to #define _DEBUG, since that symbol is reserved to the
> implementation.
>
> > Where would be the best place to put debug specific definitions?
>
> #ifndef NDEBUG
> ...
> #endif
I am already doing this in mycode. But it only hides the problem. Metrowerks
has the header <crtdbg.h> similar to MSVC one. If you will take a look into
this header you see that C runtime debug hooks (_CRT_ERROR is part if this
API) are gets defined if _DEBUG is defined. I think that it is natural to
assume that debug hooks should be defined in debug mode. So I still believe
that some compiler option is missing and that needs to be fixed.
Gennadiy.