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* [Bug math/6792] New: log1p() does not set errno n error @ 2008-07-31 9:23 mtk dot manpages at gmail dot com 2008-07-31 9:27 ` [Bug math/6792] " mtk dot manpages at gmail dot com 0 siblings, 1 reply; 4+ messages in thread From: mtk dot manpages at gmail dot com @ 2008-07-31 9:23 UTC (permalink / raw) To: glibc-bugs on a pole error or a domain error, log1p correctly raises an exception. But errno is not set. It should be (respectively: ERANGE and EDOM) Background: On error, many glibc math functions both set errno and raise an exception (fetestexcept(3)). For example, the following function all do this: acos(), asin(), cosh(), sinh(), acosh(), asinh(), exp(), exp2(), ldexp(), log(), log10(), log2(). However, there is much inconsistency. Some functions raise an exception, but don't set errno. Some functions set errno for some errors, but not others. A few set errno, but don't raise an exception. This series of bug reports documents deviations from what I consider the ideal: all functions should BOTH set errno AND raise an exception for all errors. All of these reports relate to tests on glibc 2.8 (as provided by SUSE 11.0). -- Summary: log1p() does not set errno n error Product: glibc Version: unspecified Status: NEW Severity: normal Priority: P2 Component: math AssignedTo: aj at suse dot de ReportedBy: mtk dot manpages at gmail dot com CC: glibc-bugs at sources dot redhat dot com http://sourceware.org/bugzilla/show_bug.cgi?id=6792 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug math/6792] log1p() does not set errno n error 2008-07-31 9:23 [Bug math/6792] New: log1p() does not set errno n error mtk dot manpages at gmail dot com @ 2008-07-31 9:27 ` mtk dot manpages at gmail dot com 0 siblings, 0 replies; 4+ messages in thread From: mtk dot manpages at gmail dot com @ 2008-07-31 9:27 UTC (permalink / raw) To: glibc-bugs ------- Additional Comments From mtk dot manpages at gmail dot com 2008-07-31 09:26 ------- Created an attachment (id=2854) --> (http://sourceware.org/bugzilla/attachment.cgi?id=2854&action=view) test program Sample runs demonstrating the problem $ /tmp/mt_log1p -- -1 errno == 0 fetestexcept() says: FE_DIVBYZERO log1p(-1.00000000000000000e+00)=-inf 0 FE_DIVBYZERO -inf $ /tmp/mt_log1p -- -2 errno == 0 fetestexcept() says: FE_INVALID log1p(-2.00000000000000000e+00)=nan 0 FE_INVALID nan -- http://sourceware.org/bugzilla/show_bug.cgi?id=6792 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <bug-6792-131@http.sourceware.org/bugzilla/>]
* [Bug math/6792] log1p() does not set errno n error [not found] <bug-6792-131@http.sourceware.org/bugzilla/> @ 2012-02-29 20:11 ` jsm28 at gcc dot gnu.org 2012-02-29 20:12 ` jsm28 at gcc dot gnu.org 1 sibling, 0 replies; 4+ messages in thread From: jsm28 at gcc dot gnu.org @ 2012-02-29 20:11 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=6792 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> 2012-02-29 20:10:06 UTC --- Confirmed with current sources, both x86 and x86_64. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug math/6792] log1p() does not set errno n error [not found] <bug-6792-131@http.sourceware.org/bugzilla/> 2012-02-29 20:11 ` jsm28 at gcc dot gnu.org @ 2012-02-29 20:12 ` jsm28 at gcc dot gnu.org 1 sibling, 0 replies; 4+ messages in thread From: jsm28 at gcc dot gnu.org @ 2012-02-29 20:12 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=6792 Joseph Myers <jsm28 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dickinsm at gmail dot com --- Comment #3 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-29 20:12:25 UTC --- *** Bug 5680 has been marked as a duplicate of this bug. *** -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-02-29 20:12 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-07-31 9:23 [Bug math/6792] New: log1p() does not set errno n error mtk dot manpages at gmail dot com 2008-07-31 9:27 ` [Bug math/6792] " mtk dot manpages at gmail dot com [not found] <bug-6792-131@http.sourceware.org/bugzilla/> 2012-02-29 20:11 ` jsm28 at gcc dot gnu.org 2012-02-29 20:12 ` jsm28 at gcc dot gnu.org
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