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Date: Mon, 26 Oct 2009 09:56:00 -0000
From: "vapier at gentoo dot org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Message-ID: <20091026095626.10846.vapier@gentoo.org>
Reply-To: sourceware-bugzilla@sourceware.org
Subject: [Bug math/10846] New: libm pow() function does not report floating point underflow exception
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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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