From: Alejandro Colomar <alx@kernel.org>
To: Jakub Wilk <jwilk@jwilk.net>
Cc: Florian Weimer <fweimer@redhat.com>,
libc-help@sourceware.org, linux-man@vger.kernel.org,
Iker Pedrosa <ipedrosa@redhat.com>,
~hallyn/shadow@lists.sr.ht,
Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: strtol(3) setting of errno
Date: Thu, 30 Nov 2023 23:45:06 +0100 [thread overview]
Message-ID: <ZWkQcuFmRe0eSDaR@debian> (raw)
In-Reply-To: <20231130221301.nteiaukktf6om6un@jwilk.net>
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Hi Jakub,
On Thu, Nov 30, 2023 at 11:13:01PM +0100, Jakub Wilk wrote:
> * Alejandro Colomar <alx@kernel.org>, 2023-11-30 13:40:
> > Since POSIX doesn't specify, I assume it allows setting errno on
> > success, as with any other libc function. That includes setting errno
> > on a successful call that returns 0.
>
> No? "These functions shall not change the setting of errno if successful."
Ahhh, I missed that text. Thanks! It means that a simple errno!=0 is
enough (plus the endptr check), then, and the current page is correct.
Cheers,
Alex
--
<https://www.alejandro-colomar.es/>
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prev parent reply other threads:[~2023-11-30 22:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-30 9:22 strtol(3) setting of errno Alejandro Colomar
2023-11-30 12:00 ` Florian Weimer
2023-11-30 12:40 ` Alejandro Colomar
2023-11-30 22:13 ` Jakub Wilk
2023-11-30 22:45 ` Alejandro Colomar [this message]
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