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[Bug c/17426] Emit mandatory warning for manual expansions of offsetof
- From: "jsm at polyomino dot org dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Sep 2004 14:30:06 -0000
- Subject: [Bug c/17426] Emit mandatory warning for manual expansions of offsetof
- References: <20040912013748.17426.giovannibajo@libero.it>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From jsm at polyomino dot org dot uk 2004-09-12 14:30 -------
Subject: Re: Emit mandatory warning for manual expansions of
offsetof
On Sun, 12 Sep 2004, giovannibajo at libero dot it wrote:
> > fits the long-established
> > GCC extension of symbolic difference constant expressions if being used in
> > a static initializer
>
> This could be a pedwarn, then, right?
A pedwarn for uses where integer constant expressions are required. The
intention as described in my proposed formal models is that symbolic
difference constant expressions are an implementation-defined other kind
of constant expression acceptable in initializers, i.e. not diagnosed
there.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17426