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From: Andreas Schwab <schwab@suse.de>
To: "Florian Weimer \(Code Review\)" <gerrit@gnutoolchain-gerrit.osci.io>
Cc: libc-alpha@sourceware.org,  fweimer@redhat.com
Subject: Re: [review] manual: Clarify strnlen, wcsnlen, strndup null termination behavior
Date: Wed, 30 Oct 2019 10:44:00 -0000	[thread overview]
Message-ID: <mvmd0eeh5sb.fsf@suse.de> (raw)
In-Reply-To: <gerrit.1572431114000.Ia3e68bc2d4d7e967df141702fb2f600cbd4a6432@gnutoolchain-gerrit.osci.io> (Florian Weimer's message of "Wed, 30 Oct 2019 06:25:15 -0400")

On Okt 30 2019, Florian Weimer (Code Review) wrote:

> +Note that @var{s} must be an array of at least @var{maxlen} bytes.  It
> +is undefined to call @code{strnlen} on a shorter array, even if it is
> +known that the shorter array contains a null terminator.

This is not true.  strnlen _always_ stops before the null byte.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

  reply	other threads:[~2019-10-30 10:44 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-30 10:25 Florian Weimer (Code Review)
2019-10-30 10:44 ` Andreas Schwab [this message]
2019-10-30 10:55   ` Florian Weimer
2019-10-30 11:00     ` Andreas Schwab
2019-10-30 11:03       ` Florian Weimer
2019-10-30 11:10         ` Andreas Schwab
2019-10-30 12:01           ` Zack Weinberg
2019-10-30 16:20             ` Andreas Schwab
2019-10-30 16:31               ` Zack Weinberg
2019-10-30 16:47                 ` Andreas Schwab
2019-10-30 16:58                   ` Zack Weinberg
2019-10-30 17:26                     ` Andreas Schwab
2019-10-30 18:12                       ` Zack Weinberg
2019-10-30 18:36                         ` Florian Weimer
2019-10-30 17:24             ` Joseph Myers
2019-11-28  9:43         ` Florian Weimer
2019-11-28 15:56           ` Carlos O'Donell
2019-11-28 15:58             ` Carlos O'Donell
2019-11-28 18:23               ` Rich Felker
2019-11-28 18:38                 ` Szabolcs Nagy
2019-11-29 18:20                   ` Martin Sebor
2019-11-27 19:08 ` Carlos O'Donell (Code Review)
2019-11-27 19:14 ` Florian Weimer (Code Review)
2019-11-27 22:11 ` Carlos O'Donell (Code Review)

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