GNU bug report logs - #78880
od Heap-buffer overflow

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Message #34 received at 78880 <at> debbugs.gnu.org (full text, mbox):

From: Collin Funk <collin.funk1 <at> gmail.com>
To: Grisha Levit <grishalevit <at> gmail.com>
Cc: 78880 <at> debbugs.gnu.org, Pádraig Brady <P <at> draigbrady.com>
Subject: Re: bug#78880: od Heap-buffer overflow
Date: Fri, 27 Jun 2025 09:45:03 -0700

Hi Grisha,

Grisha Levit <grishalevit <at> gmail.com> writes:

>> Grisha, what did you pass to ./configure?
>>
>> I'm suprised we don't disable this in Gnulib. Since there we do:
>>
>>     static_assert (1 < sizeof (example))
>>
>> Without a second argument message string, I would expect Clang to
>> complain about it, unless we disable it.
>
> Sorry, TBH I didn't do a proper build, I just remembered the
> discussion at [1] while reading the patch.
>
> [1] https://lists.gnu.org/r/bug-gnulib/2024-04/msg00044.html

No problem at all, I was just curious.

Gnulib can add support for C23's single argument static_assert if the
compiler does not support it, but cannot make it support declarations
after labels. So good catch on your part.

Thanks!
Collin

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