From: Gavin Ray <ray.gavin97@gmail.com>
To: Joseph Myers <joseph@codesourcery.com>
Cc: 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 13:35:48 -0500 [thread overview]
Message-ID: <CAFtvWZNE34=UA5edkPqiq-iU_U5-5MzQn3BceACSe9BYFkRpjA@mail.gmail.com> (raw)
In-Reply-To: <52ab45bc-cd6e-7acb-dc6f-9cddef4a926a@codesourcery.com>
[-- Attachment #1: Type: text/plain, Size: 587 bytes --]
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 {};
On Tue, Dec 6, 2022 at 11:54 AM Joseph Myers <joseph@codesourcery.com>
wrote:
> On Mon, 5 Dec 2022, Gavin Ray via Gcc wrote:
>
> > union [[may_alias]] broken2 {};
>
> With [[]] syntax it's [[gnu::may_alias]], since it's not a standard
> attribute.
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
>
next prev parent reply other threads:[~2022-12-06 18:36 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 [this message]
2022-12-06 19:23 ` Jonathan Wakely
2022-12-06 20:31 ` Gavin Ray
2022-12-06 20:36 ` Jonathan Wakely
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