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Re: nextafter and forced rounding

From: Ulrich Drepper <drepper at redhat dot com>
To: Richard Henderson <rth at twiddle dot net>
Cc: libc-alpha at sources dot redhat dot com
Date: Fri, 06 Aug 2004 19:38:48 -0700
Subject: Re: nextafter and forced rounding
Organization: Red Hat, Inc.
References: <20040806081305.GA20996@twiddle.net> <4113CE64.7090905@redhat.com> <20040807023511.GA25900@twiddle.net>

Richard Henderson wrote:

>> is:         -1.40129846432481707092e-45  -0x1.00000000000000000000p-149
>> should be:  -1.40129846432481707092e-45  -0x1.00000000000000000000p-149
>> difference:  0.00000000000000000000e+00   0x0.00000000000000000000p+0
> 
> 
> That's ... odd.  How can you have a miscompare with identical values?

Look at the ULP

 ulp       :  nan

Something screwed up the FPU state.

-- 
â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â

Follow-Ups:
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References:
- nextafter and forced rounding
  - From: Richard Henderson
- Re: nextafter and forced rounding
  - From: Ulrich Drepper
- Re: nextafter and forced rounding
  - From: Richard Henderson

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