public inbox for glibc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug math/6804] New: scalb()  does not set errno on domain error
@ 2008-07-31 11:18 mtk dot manpages at gmail dot com
  2008-07-31 11:19 ` [Bug math/6804] " mtk dot manpages at gmail dot com
  0 siblings, 1 reply; 6+ messages in thread
From: mtk dot manpages at gmail dot com @ 2008-07-31 11:18 UTC (permalink / raw)
  To: glibc-bugs

On a domain error(), scalb() correctly raises an exception.  But errno is not
set.  It should be set to EDOM for this 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: scalb()  does not set errno on domain 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=6804

------- 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] 6+ messages in thread
end of thread, other threads:[~2020-05-23 10:44 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-6804-131@http.sourceware.org/bugzilla/>
2012-03-01 17:37 ` [Bug math/6804] scalb() does not set errno on domain error jsm28 at gcc dot gnu.org
2014-03-31 14:58 ` cvs-commit at gcc dot gnu.org
2014-03-31 14:59 ` jsm28 at gcc dot gnu.org
2014-07-04  5:43 ` fweimer at redhat dot com
2020-05-23 10:44 ` mtk.manpages at gmail dot com
2008-07-31 11:18 [Bug math/6804] New: " mtk dot manpages at gmail dot com
2008-07-31 11:19 ` [Bug math/6804] " mtk dot manpages at gmail dot com

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).