gamedevlists-general

[GD-General] Clean way of generalizing CDECL

[Brian H. <ho...@bo...>]

I'd like to be able specify CDECL in a cross-platform manner.  On most 
x86 compilers there's just the __cdecl keywod:

void __cdecl foo( int x, int y, int z );

GCC, of course, does it completely differently:

void foo( int x, int y, int z ) __attribute((cdecl));

So a simple #define won't work.  Now, you can do a kind of convoluted 
thing using a define, but damn, it's REAL ugly.

Is there a cleaner way of doing this?

Re: [GD-General] Clean way of generalizing CDECL

[Aaron D. <ri...@in...>]

I've always just used this in my header files:

#ifdef __cplusplus
extern "C" {
#endif

// prototypes

#ifdef __cplusplus
}
#endif

Doesn't it do the same thing?

On Wed, 7 Jul 2004 08:10 am, Brian Hook wrote:
> I'd like to be able specify CDECL in a cross-platform manner.  On most
> x86 compilers there's just the __cdecl keywod:
>
> void __cdecl foo( int x, int y, int z );
>
> GCC, of course, does it completely differently:
>
> void foo( int x, int y, int z ) __attribute((cdecl));
>
> So a simple #define won't work.  Now, you can do a kind of convoluted
> thing using a define, but damn, it's REAL ugly.
>
> Is there a cleaner way of doing this?
>
>
>
>
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-- 
- Aaron

"Today's mighty oak is just yesterday's nut that held its ground."

Re: [GD-General] Clean way of generalizing CDECL

[<cas...@ya...>]

Why don't you try:

void __attribute__((cdecl)) foo( int x, int y, int z );

:)

--
Ignacio Castaño
cas...@ya...


--- Brian Hook <ho...@bo...> wrote: 
> I'd like to be able specify CDECL in a cross-platform manner.  On most
> x86 compilers there's just the __cdecl keywod:
> 
> void __cdecl foo( int x, int y, int z );
> 
> GCC, of course, does it completely differently:
> 
> void foo( int x, int y, int z ) __attribute((cdecl));
> 
> So a simple #define won't work.  Now, you can do a kind of convoluted
> thing using a define, but damn, it's REAL ugly.
> 
> Is there a cleaner way of doing this?
> 


		
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Re: [GD-General] Clean way of generalizing CDECL

[Brian H. <ho...@bo...>]

> Why don't you try:
>
> void __attribute__((cdecl)) foo( int x, int y, int z );
>
> :)

Err...hmmm, is that standard across all GCC incarnations?  The man 
pages I read indicated it had to be a suffix, but if not...well, that 
simplifies things =3D)

Brian

Re: [GD-General] Clean way of generalizing CDECL

[<cas...@ya...>]

--- Brian Hook <ho...@bo...> wrote: 
> > Why don't you try:
> >
> > void __attribute__((cdecl)) foo( int x, int y, int z );
> >
> > :)
> 
> Err...hmmm, is that standard across all GCC incarnations?  The man
> pages I read indicated it had to be a suffix, but if not...well, that
> simplifies things =)

Hmm... I'm not totally sure. I think the documentation
(http://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html) is not completely
clear, but apparently that works at least on recent gcc versions. I've been
using that for some time. So, please, let me know if you find any issue!

Thanks,

--
Ignacio Castaño
cas...@ya...



	
	
		
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