From: Qing Zhao <qing.zhao@oracle.com>
To: Joseph Myers <joseph@codesourcery.com>
Cc: Richard Biener <rguenther@suse.de>,
Siddhesh Poyarekar <siddhesh@gotplt.org>,
Kees Cook <keescook@chromium.org>,
Gcc Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [v3][PATCH 2/2] Update documentation to clarify a GCC extension (PR77650)
Date: Thu, 23 Feb 2023 22:04:24 +0000 [thread overview]
Message-ID: <EFA5315F-CBA1-425B-B2B5-874C0333A965@oracle.com> (raw)
In-Reply-To: <68c735b-90cc-14ef-be83-db1b754ad0f4@codesourcery.com>
> On Feb 23, 2023, at 4:24 PM, Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Thu, 23 Feb 2023, Qing Zhao via Gcc-patches wrote:
>
>> +@item
>> +The structure with a C99 flexible array member is the field of
>> +another union, for example:
>> +
>> +@smallexample
>> +struct flex1 @{ int length1; char data1[]; @}
>> +struct flex2 @{ int length2; char data2[]; @}
>> +
>> +union out_flex @{ struct flex1 flex_data1; struct flex2 flex_data2; @}
>
> I don't think this is an extension; structures with flexible array members
> are OK in unions in standard C.
Thanks for the info.
Just checked the small testing case with -Wpedantic, Yes, it’s accepted without any warning.
Will delete this item from the doc. And send the new patch soon.
Thanks.
Qing
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
next prev parent reply other threads:[~2023-02-23 22:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-11 0:50 [v3][PATCH 0/2] Handle component_ref to a structure/union field including FAM for builtin_object_size Qing Zhao
2023-02-11 0:50 ` [v3][PATCH 1/2] Handle component_ref to a structre/union field including C99 FAM [PR101832] Qing Zhao
2023-02-17 13:57 ` Qing Zhao
2023-02-23 14:12 ` Fwd: " Qing Zhao
2023-02-11 0:50 ` [v3][PATCH 2/2] Update documentation to clarify a GCC extension (PR77650) Qing Zhao
2023-02-17 13:58 ` Qing Zhao
2023-02-23 14:14 ` Fwd: " Qing Zhao
2023-02-23 21:24 ` Joseph Myers
2023-02-23 22:04 ` Qing Zhao [this message]
2023-02-23 22:30 ` Qing Zhao
2023-02-24 0:56 ` Joseph Myers
2023-02-24 13:50 ` Qing Zhao
2023-02-17 13:57 ` [v3][PATCH 0/2] Handle component_ref to a structure/union field including FAM for builtin_object_size Qing Zhao
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