From: Joseph Myers <josmyers@redhat.com>
To: Qing Zhao <qing.zhao@oracle.com>
Cc: Richard Biener <richard.guenther@gmail.com>,
"uecker@tugraz.at" <uecker@tugraz.at>,
Siddhesh Poyarekar <siddhesh@gotplt.org>,
Kees Cook <keescook@chromium.org>,
"gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [RFC][PATCH v1 1/4] Documentation change
Date: Tue, 23 Apr 2024 19:03:04 +0000 (UTC) [thread overview]
Message-ID: <e956eae3-6969-91ef-4a97-d83a49678882@redhat.com> (raw)
In-Reply-To: <56FC97AB-430E-4F39-ABBA-10D749F7AAD3@oracle.com>
On Tue, 23 Apr 2024, Qing Zhao wrote:
> However, I am not very confident on the wording of the doc, is the
> current wording good enough for this? Or do you have any suggestion on
> how to make it better?
I'm not convinced the statement about size (in relation to a structure
with the member omitted) is useful for unions the way it is for
structures. The structure with the member omitted is a relevant concept
for thinking about a structure with a flexible array member (the flexible
array member essentially goes after that structure); it's much less
relevant for thinking about a union with a flexible array member.
(The statement that the size is zero when all members are flexible array
members still seems a useful one to make.)
--
Joseph S. Myers
josmyers@redhat.com
next prev parent reply other threads:[~2024-04-23 19:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-19 18:43 [RFC][PATCH v1 0/4] Allow flexible array members in unions and alone in structures [PR53548] Qing Zhao
2024-04-19 18:43 ` [RFC][PATCH v1 1/4] Documentation change Qing Zhao
2024-04-19 20:54 ` Tom Tromey
2024-04-22 13:28 ` Qing Zhao
2024-04-23 18:04 ` Joseph Myers
2024-04-23 18:21 ` Qing Zhao
2024-04-23 19:03 ` Joseph Myers [this message]
2024-04-23 19:21 ` Qing Zhao
2024-04-19 18:43 ` [RFC][PATCH v1 2/4] C and C++ FE changes to support flexible array members in unions and alone in structures Qing Zhao
2024-04-23 19:51 ` Joseph Myers
2024-04-23 19:58 ` Qing Zhao
2024-04-19 18:43 ` [RFC][PATCH v1 3/4] Add testing cases for " Qing Zhao
2024-04-23 18:53 ` Joseph Myers
2024-04-23 19:30 ` Qing Zhao
2024-04-19 18:43 ` [RFC][PATCH v1 4/4] Adjust testcases for flexible array member in union and alone in structure extension Qing Zhao
2024-04-19 21:55 ` [RFC][PATCH v1 0/4] Allow flexible array members in unions and alone in structures [PR53548] Kees Cook
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