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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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