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Message-ID: <mvmmsa56opb.fsf@suse.de>
Date: Wed, 18 Jun 2025 17:42:40 +0200
From: Andreas Schwab <schwab@...e.de>
To: Alejandro Colomar <alx@...nel.org>
Cc: enh <enh@...gle.com>, Florian Weimer <fweimer@...hat.com>,
musl@...ts.openwall.com, Rich Felker <dalias@...c.org>, Adhemerval
Zanella Netto <adhemerval.zanella@...aro.org>, libc-alpha@...rceware.org,
Joseph Myers <josmyers@...hat.com>, наб
<nabijaczleweli@...ijaczleweli.xyz>, Paul Eggert <eggert@...ucla.edu>,
Robert Seacord <rcseacord@...il.com>, Bruno Haible <bruno@...sp.org>,
bug-gnulib@....org, JeanHeyd Meneide <phdofthehouse@...il.com>
Subject: Re: BUG: realloc(p,0) should be consistent with malloc(0)
On Jun 17 2025, Alejandro Colomar wrote:
> RETURN VALUE
>
> If size is 0,
> ...
> either:
>
> - A null pointer shall be returned
> and, if ptr is not a null pointer,
> errno shall be set to EINVAL.
>
> - A pointer to the allocated space shall be returned,
> and the memory object pointed to by ptr shall be freed.
> ...
>
Note that all of this is marked obsolescent.
--
Andreas Schwab, SUSE Labs, schwab@...e.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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