https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64332
--- Comment #3 from Azat <a3at.mail at gmail dot com> ---
On Tue, Dec 16, 2014 at 07:50:48PM +0300, Azat Khuzhin wrote:
> > --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
> > I don't think it is system header which is being handled differently,
> > rather I
> > think it is warning for attribute is being handled differently.
>
> Maybe... I didn't check this.
I've checked this and you are right:
$ head main.c c-impl.h # the same is in attach
==> main.c <==
#include "c-impl.h"
==> c-impl.h <==
#pragma GCC system_header
static inline int foo(int foo)
{
}
$ gcc -Wall -Wextra -Wpedantic -Wattributes -c main.c
$ g++ -Wall -Wextra -Wpedantic -Wattributes -c main.c
Now drop system_header:
$ head main.c c-impl.h
==> main.c <==
#include "c-impl.h"
==> c-impl.h <==
static inline int foo(int foo)
{
}
$ gcc -Wall -Wextra -Wpedantic -Wattributes -c main.c
In file included from main.c:1:0:
c-impl.h: In function ‘foo’:
c-impl.h:3:1: warning: no return statement in function returning non-void
[-Wreturn-type]
}
^
c-impl.h:1:27: warning: unused parameter ‘foo’ [-Wunused-parameter]
static inline int foo(int foo)
^
$ g++ -Wall -Wextra -Wpedantic -Wattributes -c main.c
In file included from main.c:1:0:
c-impl.h: In function ‘int foo(int)’:
c-impl.h:3:1: warning: no return statement in function returning non-void
[-Wreturn-type]
}
^
c-impl.h: At global scope:
c-impl.h:1:27: warning: unused parameter ‘foo’ [-Wunused-parameter]
static inline int foo(int foo)
^
