From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: Florian Weimer <fweimer@redhat.com>
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH] Don't divide by zero when trying to destroy an uninitialised barrier.
Date: Tue, 26 Apr 2016 14:44:00 -0000 [thread overview]
Message-ID: <571F7ED0.9040001@linaro.org> (raw)
In-Reply-To: <571F7D5F.2080603@redhat.com>
On 26/04/2016 11:38, Florian Weimer wrote:
> On 04/20/2016 09:46 PM, Adhemerval Zanella wrote:
>> I do not see a compelling reason to not return EINVAL if the UB
>> could be detected and if POSIX stated this behaviour is recommended.
>
> It would result in silent loss of synchronization if the return value is not checked. Such bugs are difficult to track down.
>
> Florian
But the check is user responsibility and getting such error means the
program is doing something fuzzy.
But thinking twice seems that abort in such cases seems a better
alternative, it gives the user a more straightforward indication
he should check his code.
next prev parent reply other threads:[~2016-04-26 14:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-20 16:49 Mark Thompson
2016-04-20 17:03 ` Szabolcs Nagy
2016-04-20 19:16 ` Mark Thompson
2016-04-20 19:47 ` Adhemerval Zanella
2016-04-26 14:38 ` Florian Weimer
2016-04-26 14:44 ` Adhemerval Zanella [this message]
2016-04-26 17:24 ` Mike Frysinger
2016-04-26 18:04 ` Torvald Riegel
2016-04-26 19:47 ` Adhemerval Zanella
2016-04-21 16:24 ` Torvald Riegel
2016-04-27 14:27 ` Carlos O'Donell
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