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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/107266] Reject kind=4 characters for BIND(C) – it invalid and generates wrong code
Date: Fri, 14 Oct 2022 18:31:30 +0000 [thread overview]
Message-ID: <bug-107266-4-FFMQQFqPa4@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-107266-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107266
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
--- Comment #2 from kargl at gcc dot gnu.org ---
(In reply to Tobias Burnus from comment #1)
> Better example:
>
> character(kind=4) function f(x) bind(C)
> character(kind=4), value :: x
> end
>
>
> Has the dump:
>
> __attribute__((fn spec (". w ")))
> character(kind=1) f (character(kind=1) x)
> {
> (void) 0;
> }
>
>
> Note the change to kind=1
So, you want gfortran to reject the function.
It gets real ugly with
function f(x) bind(C) result(a)
character(kind=4) a
character(kind=4), value :: x
a = x
end
leading to
__attribute__((fn spec (". w ")))
character(kind=1) f (character(kind=1) x)
{
character(kind=1) a;
*(character(kind=4) *) &a = *(character(kind=4) *) &x;
return a;
}
next prev parent reply other threads:[~2022-10-14 18:31 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-14 16:04 [Bug fortran/107266] New: " burnus at gcc dot gnu.org
2022-10-14 16:09 ` [Bug fortran/107266] " burnus at gcc dot gnu.org
2022-10-14 18:31 ` kargl at gcc dot gnu.org [this message]
2022-10-14 18:51 ` kargl at gcc dot gnu.org
2022-10-14 18:51 ` kargl at gcc dot gnu.org
2022-10-14 20:08 ` kargl at gcc dot gnu.org
2022-10-14 21:36 ` burnus at gcc dot gnu.org
2022-10-14 22:21 ` sgk at troutmask dot apl.washington.edu
2022-10-14 22:45 ` kargl at gcc dot gnu.org
2022-10-17 16:15 ` cvs-commit at gcc dot gnu.org
2022-10-17 16:56 ` kargl at gcc dot gnu.org
2022-10-18 10:40 ` burnus at gcc dot gnu.org
2022-10-18 17:29 ` sgk at troutmask dot apl.washington.edu
2022-10-18 22:43 ` sgk at troutmask dot apl.washington.edu
2022-10-18 23:18 ` sgk at troutmask dot apl.washington.edu
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