From: Joseph Myers <joseph@codesourcery.com>
To: Siddhesh Poyarekar <siddhesh@gotplt.org>
Cc: Qing Zhao <qing.zhao@oracle.com>,
richard Biener <rguenther@suse.de>,
"gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>,
"keescook@chromium.org" <keescook@chromium.org>
Subject: Re: [PATCH 1/2] Handle component_ref to a structre/union field including flexible array member [PR101832]
Date: Wed, 8 Feb 2023 20:51:25 +0000 [thread overview]
Message-ID: <86a4c99-bd6e-9f9f-12bd-3d306cfe37f@codesourcery.com> (raw)
In-Reply-To: <ea64e58e-88cc-9d36-ceb7-d58ab53d5b38@gotplt.org>
On Wed, 8 Feb 2023, Siddhesh Poyarekar wrote:
> On 2023-02-08 14:09, Joseph Myers wrote:
> > What must be avoided is -pedantic diagnostics for
> >
> > struct flex1 { int n; int data[1]; };
> > struct out_flex_end1 { int m; struct flex1 flex_data; };
> >
> > regardless of whether considered flexible or not, since that's clearly
> > valid in standard C.
> >
>
> Are you sure about "regardless of whether considered flexible or not", since
> ISTM the validity of the above in standard C is limited to when it's
> considered a non-flexible array. So with -pedantic it shouldn't warn, but it
> also then shouldn't consider it a flexible array.
>
> In other words, perhaps it makes sense to imply -fstrict-flex-arrays with
> -pedantic?
There should be no code generation effects from -pedantic.
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2023-02-08 20:51 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-31 14:11 [PATCH 0/2]PR101832: Handle component_ref to a structure/union field including flexible array member for builtin_object_size Qing Zhao
2023-01-31 14:11 ` [PATCH 1/2] Handle component_ref to a structre/union field including flexible array member [PR101832] Qing Zhao
2023-02-01 11:41 ` Richard Biener
2023-02-01 14:19 ` Qing Zhao
2023-02-02 8:07 ` Richard Biener
2023-02-02 13:52 ` Qing Zhao
2023-02-02 13:54 ` Richard Biener
2023-02-02 14:38 ` Qing Zhao
2023-02-03 7:49 ` Richard Biener
2023-02-03 13:17 ` Qing Zhao
2023-02-06 9:31 ` Richard Biener
2023-02-06 14:38 ` Qing Zhao
2023-02-06 23:14 ` Joseph Myers
2023-02-07 14:54 ` Qing Zhao
2023-02-07 19:17 ` Joseph Myers
2023-02-07 19:57 ` Qing Zhao
2023-02-07 23:37 ` Joseph Myers
2023-02-08 15:06 ` Qing Zhao
2023-02-08 19:09 ` Joseph Myers
2023-02-08 19:20 ` Siddhesh Poyarekar
2023-02-08 20:51 ` Joseph Myers [this message]
2023-02-08 22:53 ` Qing Zhao
2023-02-08 23:18 ` Qing Zhao
2023-02-09 14:40 ` Qing Zhao
2023-02-09 16:46 ` Kees Cook
2023-02-10 15:25 ` Qing Zhao
2023-02-09 10:35 ` Richard Biener
2023-02-09 13:44 ` Qing Zhao
2023-02-07 15:28 ` Siddhesh Poyarekar
2023-02-07 15:38 ` Qing Zhao
2023-02-01 16:48 ` Siddhesh Poyarekar
2023-02-01 18:20 ` Qing Zhao
2023-01-31 14:11 ` [PATCH 2/2] Documentation Update Qing Zhao
2023-02-01 16:55 ` Siddhesh Poyarekar
2023-02-01 18:24 ` Qing Zhao
2023-02-01 18:57 ` Siddhesh Poyarekar
2023-02-01 19:19 ` Qing Zhao
2023-02-02 8:33 ` Richard Biener
2023-02-02 14:31 ` Qing Zhao
2023-02-02 17:05 ` Kees Cook
2023-02-03 15:56 ` Jeff Law
2023-02-03 4:25 ` Siddhesh Poyarekar
2023-02-03 14:52 ` Qing Zhao
2023-02-03 20:55 ` Joseph Myers
2023-02-03 22:38 ` Qing Zhao
2023-05-25 1:22 [V8][PATCH 0/2]Accept and Handle the case when a structure including a FAM nested in another structure Qing Zhao
2023-05-25 1:22 ` [PATCH 1/2] Handle component_ref to a structre/union field including flexible array member [PR101832] Qing Zhao
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