From: Andre McCurdy <armccurdy@gmail.com>
To: musl@lists.openwall.com
Subject: Re: expectations for a_ctz_64(0)
Date: Thu, 30 Nov 2017 15:45:58 -0800 [thread overview]
Message-ID: <CAJ86T=W+3xiAE3UmBvkO5-t0LT3+dSKS1otvc9Y8EWZ+JLm0Kg@mail.gmail.com> (raw)
In-Reply-To: <20171130230843.GU15263@port70.net>
On Thu, Nov 30, 2017 at 3:08 PM, Szabolcs Nagy <nsz@port70.net> wrote:
> * Andre McCurdy <armccurdy@gmail.com> [2017-11-30 14:41:32 -0800]:
>> Currently the generic and aarch64 versions of a_ctz_64() give
>> different results for 0:
>>
>> a_ctz_64_generic(0) : 0
>> a_ctz_64_aarch64(0) : 64
>>
>> That doesn't matter for the ffs functions, but for the other users of
>> a_ctz_l and a_ctz_64 (ie malloc and qsort) it's less clear.
>>
>> Does musl rely on a specific behaviour?
>
> no, that would be a bug.
>
> same for clz
Good. Thanks for confirming.
prev parent reply other threads:[~2017-11-30 23:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 22:41 Andre McCurdy
2017-11-30 23:08 ` Szabolcs Nagy
2017-11-30 23:45 ` Andre McCurdy [this message]
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