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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug math/14803] Different ULPs depending on size of long int in GCC
Date: Sun, 04 Nov 2012 23:05:00 -0000 [thread overview]
Message-ID: <bug-14803-131-dWkq1snqxg@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-14803-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14803
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-04 23:05:35 UTC ---
(In reply to comment #1)
>
> Really I'd consider this just a variant on bug 21718 (real.c rounding not
> perfect). That would ideally be fixed by using MPFR for this in GCC ...
> except that for any MPFR versions before 3.1.1p2, the bug I found with the
> ternary value from mpfr_strtofr could cause problems for subnormal
> results.
>
Fedora 17 has mpfr-3.1.0. So most of system MPFR won't be suitable for
this.
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next prev parent reply other threads:[~2012-11-04 23:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-04 22:24 [Bug math/14803] New: " hjl.tools at gmail dot com
2012-11-04 22:42 ` [Bug math/14803] " joseph at codesourcery dot com
2012-11-04 22:54 ` hjl.tools at gmail dot com
2012-11-04 23:03 ` hjl.tools at gmail dot com
2012-11-04 23:05 ` hjl.tools at gmail dot com [this message]
2012-11-04 23:11 ` vincent-srcware at vinc17 dot net
2012-11-04 23:32 ` vincent-srcware at vinc17 dot net
2012-11-05 9:34 ` fweimer at redhat dot com
2012-11-28 21:48 ` jsm28 at gcc dot gnu.org
2014-02-16 19:31 ` jackie.rosen at hushmail dot com
2014-05-28 19:43 ` schwab at sourceware dot org
2014-06-14 11:16 ` fweimer at redhat dot com
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