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* [Bug math/10846] New: libm pow() function does not report floating point underflow exception
@ 2009-10-26 9:56 vapier at gentoo dot org
2009-10-26 9:56 ` [Bug math/10846] " vapier at gentoo dot org
2009-10-26 9:57 ` vapier at gentoo dot org
0 siblings, 2 replies; 3+ messages in thread
From: vapier at gentoo dot org @ 2009-10-26 9:56 UTC (permalink / raw)
To: glibc-bugs
first reported here:
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/429113
The pow() function in the standard C library does not report a floating point
underflow exception like it is supposed to.
Compile the attached program with '-O0 -fno-bultin-pow -lm'. Then run it.
some people report correct behavior on x86 but not on x86_64
--
Summary: libm pow() function does not report floating point
underflow exception
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: aj at suse dot de
ReportedBy: vapier at gentoo dot org
CC: glibc-bugs at sources dot redhat dot com
GCC host triplet: x86_64-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=10846
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* [Bug math/10846] libm pow() function does not report floating point underflow exception
2009-10-26 9:56 [Bug math/10846] New: libm pow() function does not report floating point underflow exception vapier at gentoo dot org
@ 2009-10-26 9:56 ` vapier at gentoo dot org
2009-10-26 9:57 ` vapier at gentoo dot org
1 sibling, 0 replies; 3+ messages in thread
From: vapier at gentoo dot org @ 2009-10-26 9:56 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From vapier at gentoo dot org 2009-10-26 09:56 -------
Created an attachment (id=4319)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=4319&action=view)
test.c
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10846
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* [Bug math/10846] libm pow() function does not report floating point underflow exception
2009-10-26 9:56 [Bug math/10846] New: libm pow() function does not report floating point underflow exception vapier at gentoo dot org
2009-10-26 9:56 ` [Bug math/10846] " vapier at gentoo dot org
@ 2009-10-26 9:57 ` vapier at gentoo dot org
1 sibling, 0 replies; 3+ messages in thread
From: vapier at gentoo dot org @ 2009-10-26 9:57 UTC (permalink / raw)
To: glibc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |toolchain at gentoo dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=10846
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end of thread, other threads:[~2009-10-26 9:57 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2009-10-26 9:56 [Bug math/10846] New: libm pow() function does not report floating point underflow exception vapier at gentoo dot org
2009-10-26 9:56 ` [Bug math/10846] " vapier at gentoo dot org
2009-10-26 9:57 ` vapier at gentoo dot org
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