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[Bug math/6809] tgamma() sets errno inconsistently for domain error
- From: "mtk dot manpages at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 31 Jul 2008 13:35:34 -0000
- Subject: [Bug math/6809] tgamma() sets errno inconsistently for domain error
- References: <20080731133414.6809.mtk.manpages@gmail.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From mtk dot manpages at gmail dot com 2008-07-31 13:35 -------
Created an attachment (id=2881)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=2881&action=view)
test program
Test runs demonstrating the problem:
$ /tmp/mt_tgamma -- -1
errno == EDOM
fetestexcept() says: FE_INVALID
tgamma(-1.00000000000000000e+00)=nan
EDOM FE_INVALID nan
$ /tmp/mt_tgamma -- -inf
errno == 0
fetestexcept() says: FE_INVALID
tgamma(-inf)=nan
0 FE_INVALID nan
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6809
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