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From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug math/19016] clog, clog10 inaccuracy
Date: Mon, 28 Sep 2015 20:16:00 -0000 [thread overview]
Message-ID: <bug-19016-131-1TVcoP5j5n@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-19016-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19016
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|clog10 inaccuracy |clog, clog10 inaccuracy
--- Comment #1 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Also for clog, e.g. for long double on x86_64:
Failure: Test: Real part of: clog_towardzero (0xb.fffffffffff8p-4 +
0x7.fffff8p-4 i)
Result:
is: -1.03819700729014380504e-01 -0xd.49f6c5a7e34c9b900000p-7
should be: -1.03819700729014380416e-01 -0xd.49f6c5a7e34c9ac00000p-7
difference: 8.80914265144472352631e-20 0xd.00000000000000000000p-67
ulp : 13.0000
max.ulp : 8.0000
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next prev parent reply other threads:[~2015-09-28 20:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-28 17:57 [Bug math/19016] New: " jsm28 at gcc dot gnu.org
2015-09-28 20:16 ` jsm28 at gcc dot gnu.org [this message]
2015-09-28 22:12 ` [Bug math/19016] clog, " cvs-commit at gcc dot gnu.org
2015-09-28 22:13 ` jsm28 at gcc dot gnu.org
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