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* [Bug libc/14519] New: Incorrect sign of zero on strtod underflow
@ 2012-08-25 15:36 jsm28 at gcc dot gnu.org
  2012-08-27 16:14 ` [Bug libc/14519] " jsm28 at gcc dot gnu.org
  2014-06-17  4:49 ` fweimer at redhat dot com
  0 siblings, 2 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-08-25 15:36 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=14519

             Bug #: 14519
           Summary: Incorrect sign of zero on strtod underflow
           Product: glibc
           Version: 2.16
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jsm28@gcc.gnu.org
                CC: drepper.fsp@gmail.com
    Classification: Unclassified


strtod sometimes returns positive zero on underflow when it should return
negative zero.  Testcase:

#include <stdio.h>
#include <stdlib.h>

int
main (void)
{
  printf ("%a\n", atof ("-0x0.7p-1074"));
  return 0;
}

Testing a patch.

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* [Bug libc/14519] Incorrect sign of zero on strtod underflow
  2012-08-25 15:36 [Bug libc/14519] New: Incorrect sign of zero on strtod underflow jsm28 at gcc dot gnu.org
@ 2012-08-27 16:14 ` jsm28 at gcc dot gnu.org
  2014-06-17  4:49 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-08-27 16:14 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=14519

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #1 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-08-27 16:14:10 UTC ---
Fixed for 2.17 by:

commit 7efb4737dd729326e5339facbd785cee43fb53b3
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Mon Aug 27 16:04:19 2012 +0000

    Fix sign of zero on strtod underflow (bug 14519).

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug libc/14519] Incorrect sign of zero on strtod underflow
  2012-08-25 15:36 [Bug libc/14519] New: Incorrect sign of zero on strtod underflow jsm28 at gcc dot gnu.org
  2012-08-27 16:14 ` [Bug libc/14519] " jsm28 at gcc dot gnu.org
@ 2014-06-17  4:49 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2014-06-17  4:49 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=14519

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2014-06-17  4:49 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-08-25 15:36 [Bug libc/14519] New: Incorrect sign of zero on strtod underflow jsm28 at gcc dot gnu.org
2012-08-27 16:14 ` [Bug libc/14519] " jsm28 at gcc dot gnu.org
2014-06-17  4:49 ` fweimer at redhat dot com

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