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Date: Sun, 22 Oct 2006 00:22:00 -0000
From: "myles at peakstreaminc dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Message-ID: <20061022002233.3406.myles@peakstreaminc.com>
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Subject: [Bug math/3406] New: expf(x) gives infinity where correctly rounded result is finite
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glibc-2.3.4-2.19
gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)

The attached sample program takes expf(x) and float(exp(x)) for a number x 
such that the exponential is ALMOST +INF in 32-bit floating point. expf(x) 
returns (incorrectly) INF, where float(exp(x)) is finite.

-- 
           Summary: expf(x) gives infinity where correctly rounded result is
                    finite
           Product: glibc
           Version: 2.3.4
            Status: NEW
          Severity: minor
          Priority: P2
         Component: math
        AssignedTo: aj at suse dot de
        ReportedBy: myles at peakstreaminc dot com
                CC: glibc-bugs at sources dot redhat dot com
  GCC host triplet: 2.6.9-34.ELsmp


http://sourceware.org/bugzilla/show_bug.cgi?id=3406

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