Re: attribute decl in version decl
On 09/18/2011 06:55 PM, Ellery Newcomer wrote:
Just came across some old D code that does this:
version(linux){
extern(C):
}
Hundreds of OpenGL decls
in dmd 2.055, the extern(C) is not being applied to the OpenGL decls.
should it?
Yes they should be applied, unless they declare D functions, which is
seldom the case for Hundreds of OpenGL decls.
If you are asking, if the D compiler is wrong here: No, it is by design,
you can check with the D grammar.
Re: attribute decl in version decl
On 09/18/2011 01:02 PM, Timon Gehr wrote: If you are asking, if the D compiler is wrong here: No, it is by design, you can check with the D grammar. Nah, just confirming that failure to apply the externs is a bug.
Re: attribute decl in version decl
On 09/18/2011 10:46 PM, Ellery Newcomer wrote:
On 09/18/2011 01:02 PM, Timon Gehr wrote:
If you are asking, if the D compiler is wrong here: No, it is by design,
you can check with the D grammar.
Nah, just confirming that failure to apply the externs is a bug.
version(linux){
extern(C):
} // affected declarations end here, because '}' is not a declaration.
ConditionalDeclarations don't work like the C preprocessor, the code is
parsed before the ConditionalDeclaration is applied, not the other way
round.
It would indeed be desirable to have it work like this, but it would be
a special case.
Re: attribute decl in version decl
On 09/18/2011 04:09 PM, Trass3r wrote:
Am 18.09.2011, 18:55 Uhr, schrieb Ellery Newcomer
ellery-newco...@utulsa.edu:
Just came across some old D code that does this:
version(linux){
extern(C):
}
Hundreds of OpenGL decls
in dmd 2.055, the extern(C) is not being applied to the OpenGL decls.
should it?
Walter once said it was deliberate.
That extern(C) is only valid inside the version block.
But I also think it should be the other way around.
Really.
Wonder how gunroar ever compiled
Re: attribute decl in version decl
Am 18.09.2011, 18:55 Uhr, schrieb Ellery Newcomer
ellery-newco...@utulsa.edu:
Just came across some old D code that does this:
version(linux){
extern(C):
}
Hundreds of OpenGL decls
in dmd 2.055, the extern(C) is not being applied to the OpenGL decls.
should it?
Walter once said it was deliberate.
That extern(C) is only valid inside the version block.
But I also think it should be the other way around.
Re: attribute decl in version decl
Ellery Newcomer ellery-newco...@utulsa.edu wrote in message
news:j557r6$vgt$1...@digitalmars.com...
Just came across some old D code that does this:
version(linux){
extern(C):
}
Are the prototypes extern(Windows) when not on linux, by any chance? That
is the only combination I've ever had to use, and is supported by
extern(System).
Re: attribute decl in version decl
On 9/19/2011 1:55 AM, Ellery Newcomer wrote:
Just came across some old D code that does this:
version(linux){
extern(C):
}
Hundreds of OpenGL decls
in dmd 2.055, the extern(C) is not being applied to the OpenGL decls.
should it?
Change it to the following, and you're golden.
extern(System):
Hundreds of OpenGL decls
Re: attribute decl in version decl
Change it to the following, and you're golden.
extern(System):
Hundreds of OpenGL decls
That only fixes this particular issue.
I once had the following case that can't be done:
version(V1)
{
extern(System):
}
else
{
extern(C):
}
Re: attribute decl in version decl
On 09/19/2011 03:37 PM, Trass3r wrote:
Change it to the following, and you're golden.
extern(System):
Hundreds of OpenGL decls
That only fixes this particular issue.
I once had the following case that can't be done:
version(V1)
{
extern(System):
}
else
{
extern(C):
}
You could use the C preprocessor ;). Or this, that does the same thing:
version(V1) private enum _v1=true;
else private enum _v1=false;
mixin((_v1?extern(System)::extern(C):)~q{
// all declarations that should be affected.
});
Re: attribute decl in version decl
On 09/18/2011 11:04 PM, Daniel Murphy wrote:
Ellery Newcomer ellery-newco...@utulsa.edu wrote in message
news:j557r6$vgt$1...@digitalmars.com...
Just came across some old D code that does this:
version(linux){
extern(C):
}
Are the prototypes extern(Windows) when not on linux, by any chance? That
is the only combination I've ever had to use, and is supported by
extern(System).
yep. didn't know about System. Thanks.
Re: attribute decl in version decl
On 09/19/2011 08:59 AM, Timon Gehr wrote:
You could use the C preprocessor ;). Or this, that does the same thing:
version(V1) private enum _v1=true;
else private enum _v1=false;
mixin((_v1?extern(System)::extern(C):)~q{
// all declarations that should be affected.
});
code golf
or this:
version(linux){
extern(C):
mixin(s);
}
version(Win32){
extern(Windows):
mixin(s);
}
enum s = q{
hundreds of opengl decls
};
/code golf
