Re: how do i implement double-dispatching?

[Stephen Leake <stephen_leake@acm.org>]

cl1motorsports <cwlambert76@yahoo.com> writes:

> On Sun, 21 Dec 2003 08:39:59 -0500, Stephen Leake wrote:
> 
> > cl1motorsports <cwlambert76@yahoo.com> writes:
> > 
> >> Seriously though, the most common preprocessor is
> >> the one that comes with gcc, and it puts alot of non standard C stuff in
> >> its output. 
> > 
> > Hmm. I never noticed anything that was not in the ANSI C standard. Are
> > you sure it is truly not in that standard? Or is it just something you
> > are not familiar with? In any case, you can disable any non-standard
> > stuff by specifying -ansi.
> 
> extern int vsnprintf (char *   __s, size_t __maxlen,
> 		      __const char *   __format, __gnuc_va_list  __arg)
>        __attribute__ ((__format__ (__printf__, 3, 0)));

> the __attribute__ keyword gets processed even when -ansi is used.

By the compiler, true (although maybe not with -pedantic?). But we
were talking about the preprocessor; it just passes __attribute__
thru.

> But from what i can tell, that is only used in the system header
> files. I mean it is not created by the preprocessor. I have a newer
> version of GCC since i last checked this. so maybe it was only in
> one version or something like that *shrugs*.

Ok. So as far as you know, the gcc preprocessor is ANSI compliant.
That was my point.

-- 
-- Stephe