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* [Bug math/6793] logb() does not set errno on pole error [not found] <bug-6793-131@http.sourceware.org/bugzilla/> @ 2012-03-01 2:21 ` jsm28 at gcc dot gnu.org 2020-05-23 11:37 ` mtk.manpages at gmail dot com 1 sibling, 0 replies; 3+ messages in thread From: jsm28 at gcc dot gnu.org @ 2012-03-01 2:21 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=6793 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 02:20:51 UTC --- Confirmed with current sources on 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] 3+ messages in thread
* [Bug math/6793] logb() does not set errno on pole error [not found] <bug-6793-131@http.sourceware.org/bugzilla/> 2012-03-01 2:21 ` [Bug math/6793] logb() does not set errno on pole error jsm28 at gcc dot gnu.org @ 2020-05-23 11:37 ` mtk.manpages at gmail dot com 1 sibling, 0 replies; 3+ messages in thread From: mtk.manpages at gmail dot com @ 2020-05-23 11:37 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=6793 --- Comment #3 from Michael Kerrisk <mtk.manpages at gmail dot com> --- Still present in glibc 2.31 (tested on x86_64). -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug math/6793] New: logb() does not set errno on pole error @ 2008-07-31 9:36 mtk dot manpages at gmail dot com 2008-07-31 9:37 ` [Bug math/6793] " mtk dot manpages at gmail dot com 0 siblings, 1 reply; 3+ messages in thread From: mtk dot manpages at gmail dot com @ 2008-07-31 9:36 UTC (permalink / raw) To: glibc-bugs On a pole error, logb() correctly raises an exception, but does not set errno. errno should be set to ERANGE. (Note that log(), log2(), log10() *do* set errno for a pole error) 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: logb() does not set errno on pole 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=6793 ------- 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] 3+ messages in thread
* [Bug math/6793] logb() does not set errno on pole error 2008-07-31 9:36 [Bug math/6793] New: " mtk dot manpages at gmail dot com @ 2008-07-31 9:37 ` 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 9:37 UTC (permalink / raw) To: glibc-bugs ------- Additional Comments From mtk dot manpages at gmail dot com 2008-07-31 09:36 ------- Created an attachment (id=2855) --> (http://sourceware.org/bugzilla/attachment.cgi?id=2855&action=view) test program Sample run showing problem: $ /tmp/mt_logb 0 errno == 0 fetestexcept() says: FE_DIVBYZERO logb(0.00000000000000000e+00)=-inf 0 FE_DIVBYZERO -inf -- http://sourceware.org/bugzilla/show_bug.cgi?id=6793 ------- 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] 3+ messages in thread
end of thread, other threads:[~2020-05-23 11:37 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-6793-131@http.sourceware.org/bugzilla/> 2012-03-01 2:21 ` [Bug math/6793] logb() does not set errno on pole error jsm28 at gcc dot gnu.org 2020-05-23 11:37 ` mtk.manpages at gmail dot com 2008-07-31 9:36 [Bug math/6793] New: " mtk dot manpages at gmail dot com 2008-07-31 9:37 ` [Bug math/6793] " mtk dot manpages at gmail dot com
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