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[Bug math/2540] Incorrect return from float acosh (0X1.01FB0B7471C13P+0)
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Sun, 19 Feb 2012 18:05:29 +0000
- Subject: [Bug math/2540] Incorrect return from float acosh (0X1.01FB0B7471C13P+0)
- Auto-submitted: auto-generated
- References: <bug-2540-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=2540
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|SUSPENDED |NEW
AssignedTo|aj at suse dot de |unassigned at sourceware
| |dot org
--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-19 18:05:29 UTC ---
When that argument is rounded to float it's 0X1.01FB0CP+0 and the correctly
rounded result is 0X1.FD3082P-4. So this is a 1ulp error, not 34ulp. (Since
there are no testcases in the testsuite expecting any error from acoshf, we
should still add that actual float value to the testsuite.)
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