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Message-Id: <9048289A-E316-4F75-96C3-60502B2E563D@gmail.com>
Date: Thu, 15 Mar 2012 19:14:09 +0100
From: Pascal Cuoq <pascal.cuoq@...il.com>
To: "musl@...ts.openwall.com" <musl@...ts.openwall.com>
Cc: "musl@...ts.openwall.com" <musl@...ts.openwall.com>
Subject: Re: correctly rounded sqrt
>>
>> if (signexp >= 0x7fff) is probably a better check
>
> Haha, this is the second time I stupidly forget sqrt(x) is
> nonnegative... :-) Fixing it..
I apologize if this is not relevant —I admit I followed the discussion with only half my attention— but note that sqrt(-0.) is -0., so the sign bit may be set in both argument and result of sqrt().
>
Pascal
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