From: Jonathan Wakely <jwakely.gcc@gmail.com>
To: Gavin Ray <ray.gavin97@gmail.com>
Cc: Joseph Myers <joseph@codesourcery.com>,
"gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: Using [[may_alias]] in C23/C++23 on a union works in neither post-"union" position, or at the end of the definition
Date: Tue, 6 Dec 2022 19:23:36 +0000 [thread overview]
Message-ID: <CAH6eHdRmX72shEPmsX2ajB7uU16svwkXUGc-6jiVRZbOwxm85A@mail.gmail.com> (raw)
In-Reply-To: <CAFtvWZNE34=UA5edkPqiq-iU_U5-5MzQn3BceACSe9BYFkRpjA@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 460 bytes --]
On Tue, 6 Dec 2022, 18:36 Gavin Ray via Gcc, <gcc@gcc.gnu.org> wrote:
> Oh, D'oh! Thanks Joseph, apologies for the needless email on the list then.
>
> One final question if I could -- does that mean that in order to support
> "may-alias" with the bracket syntax on both Clang and GCC, it would
> require:
>
> union [[gnu::may_alias]] [[clang::may_alias]] foo {};
>
Probably not. Clang accepts the gnu:: namespace for attributes that
originated with GCC.
next prev parent reply other threads:[~2022-12-06 19:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-06 3:17 Gavin Ray
2022-12-06 16:54 ` Joseph Myers
2022-12-06 18:35 ` Gavin Ray
2022-12-06 19:23 ` Jonathan Wakely [this message]
2022-12-06 20:31 ` Gavin Ray
2022-12-06 20:36 ` Jonathan Wakely
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