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From: "zimmerma+gcc at loria dot fr" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug math/16560] New: spurious underflow exception from exp2
Date: Wed, 12 Feb 2014 09:53:00 -0000 [thread overview]
Message-ID: <bug-16560-131@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=16560
Bug ID: 16560
Summary: spurious underflow exception from exp2
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: zimmerma+gcc at loria dot fr
on x86_64 I get:
Testing function exp2 for exponent 0 [seed=11871].
rounding mode MPFR_RNDN:
wrong underflow flag: mpfr gives 0, library 16
x=8.000000@-38
library gives 1.000000
mpfr gives 1.000000
since the result is 1, there should be no underflow exception!
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next reply other threads:[~2014-02-12 9:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-12 9:53 zimmerma+gcc at loria dot fr [this message]
2014-02-12 10:44 ` [Bug math/16560] spurious underflow exception from exp2/exp10 zimmerma+gcc at loria dot fr
2014-02-12 10:51 ` zimmerma+gcc at loria dot fr
2014-02-12 13:16 ` zimmerma+gcc at loria dot fr
2014-02-12 13:22 ` zimmerma+gcc at loria dot fr
2014-03-27 18:42 ` cvs-commit at gcc dot gnu.org
2014-06-13 8:38 ` fweimer at redhat dot com
2014-06-25 11:34 ` cvs-commit at gcc dot gnu.org
2015-02-12 19:03 ` cvs-commit at gcc dot gnu.org
2015-02-12 19:04 ` jsm28 at gcc dot gnu.org
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