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* [Bug math/6795] hypot() does not set errno consistently on error
[not found] <bug-6795-131@http.sourceware.org/bugzilla/>
@ 2012-03-01 2:29 ` jsm28 at gcc dot gnu.org
2013-11-28 16:58 ` jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-03-01 2:29 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=6795
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|aj at suse dot de |unassigned at sourceware
| |dot org
--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-03-01 02:28:33 UTC ---
Confirmed with current sources on both x86 and x86_64.
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* [Bug math/6795] hypot() does not set errno consistently on error
[not found] <bug-6795-131@http.sourceware.org/bugzilla/>
2012-03-01 2:29 ` [Bug math/6795] hypot() does not set errno consistently on error jsm28 at gcc dot gnu.org
@ 2013-11-28 16:58 ` jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2013-11-28 16:58 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=6795
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #3 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
It's now documented that errno is only intended to be set to ERANGE for
underflow to 0, not for underflow to subnormals, and hypot can't underflow to
0.
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* [Bug math/6795] hypot() does not set errno consistently on error
2008-07-31 9:55 [Bug math/6795] New: " mtk dot manpages at gmail dot com
@ 2008-07-31 9:57 ` mtk dot manpages at gmail dot com
0 siblings, 0 replies; 3+ messages in thread
From: mtk dot manpages at gmail dot com @ 2008-07-31 9:57 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From mtk dot manpages at gmail dot com 2008-07-31 09:56 -------
Created an attachment (id=2857)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=2857&action=view)
test program
Sample runs demonstrating the problem:
$ /tmp/mt_hypot dbl_max dbl_max
errno == ERANGE
fetestexcept() says: FE_OVERFLOW FE_INEXACT
hypot(1.79769313486231571e+308,1.79769313486231571e+308)=inf
ERANGE FE_OVERFLOW +inf
$ /tmp/mt_hypot subnormal:20 subnormal:20
errno == 0
fetestexcept() says: FE_UNDERFLOW FE_INEXACT
hypot(2.12199579096527232e-314,2.12199579096527232e-314)=3.00095522690537735e-314
0 FE_UNDERFLOW subnormal
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[not found] <bug-6795-131@http.sourceware.org/bugzilla/>
2012-03-01 2:29 ` [Bug math/6795] hypot() does not set errno consistently on error jsm28 at gcc dot gnu.org
2013-11-28 16:58 ` jsm28 at gcc dot gnu.org
2008-07-31 9:55 [Bug math/6795] New: " mtk dot manpages at gmail dot com
2008-07-31 9:57 ` [Bug math/6795] " mtk dot manpages at gmail dot com
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