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[Bug math/3976] libm rounding modes do not work correctly for many archs
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Fri, 02 Mar 2012 16:08:45 +0000
- Subject: [Bug math/3976] libm rounding modes do not work correctly for many archs
- Auto-submitted: auto-generated
- References: <bug-3976-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=3976
--- Comment #13 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-03-02 16:08:45 UTC ---
Examples for pow involving arguments that are exactly representable in all
floating-point types (always nice for the testsuite):
N: pow(1.0625,1.125) = 1.0705822930287614
Z: pow(1.0625,1.125) = 1.0705822930287612
D: pow(1.0625,1.125) = 1.0705822930287612
U: pow(1.0625,1.125) = 0.032633984947502387
N: pow(1.5,1.03125) = 1.5191270987147432
Z: pow(1.5,1.03125) = 1.0003045181943615
D: pow(1.5,1.03125) = 1.0003045181943615
U: pow(1.5,1.03125) = 1.5191270987147434
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