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* [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc
       [not found] <bug-4108-131@http.sourceware.org/bugzilla/>
@ 2012-02-26 14:00 ` jsm28 at gcc dot gnu.org
  2012-02-26 16:34 ` jsm28 at gcc dot gnu.org
  2012-03-01 21:19 ` jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-02-26 14:00 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=4108

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> 2012-02-26 14:00:40 UTC ---
Confirmed in essence (the numbers of ULPs given in this report don't seem
right, though).  erfcf (0X1.F7303CP+1) should be 0X1.D0CD2AP-26 but glibc gives
0X1.D0CD46P-26.  erfcf (0X1.FFFFC8P+2) should be 0X1.C768DCP-97 but glibc gives
0X1.C7694EP-97.

Probably same cause as bug 2541.

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* [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc
       [not found] <bug-4108-131@http.sourceware.org/bugzilla/>
  2012-02-26 14:00 ` [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc jsm28 at gcc dot gnu.org
@ 2012-02-26 16:34 ` jsm28 at gcc dot gnu.org
  2012-03-01 21:19 ` jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-02-26 16:34 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=4108

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at sourceware    |jsm28 at gcc dot gnu.org
                   |dot org                     |

--- Comment #3 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-26 16:33:28 UTC ---
Patch submitted: http://sourceware.org/ml/libc-alpha/2012-02/msg00640.html

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* [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc
       [not found] <bug-4108-131@http.sourceware.org/bugzilla/>
  2012-02-26 14:00 ` [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc jsm28 at gcc dot gnu.org
  2012-02-26 16:34 ` jsm28 at gcc dot gnu.org
@ 2012-03-01 21:19 ` jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-03-01 21:19 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=4108

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

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

--- Comment #4 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-03-01 21:18:28 UTC ---
Fixed by:

commit 7b1902cb3e64d340247638a8781770c3a4d850ce
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Thu Mar 1 21:15:38 2012 +0000

    Improve erfc accuracy.

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* [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc
  2007-02-28  2:34 [Bug math/4108] New: " myles at peakstreaminc dot com
@ 2007-02-28  2:35 ` myles at peakstreaminc dot com
  0 siblings, 0 replies; 4+ messages in thread
From: myles at peakstreaminc dot com @ 2007-02-28  2:35 UTC (permalink / raw)
  To: glibc-bugs


------- Additional Comments From myles at peakstreaminc dot com  2007-02-28 02:35 -------
Created an attachment (id=1585)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=1585&action=view)
Program (C++) that compares erfcf and erfc results

This program may be compiled with g++, e.g. 
gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)


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end of thread, other threads:[~2012-03-01 21:19 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-4108-131@http.sourceware.org/bugzilla/>
2012-02-26 14:00 ` [Bug math/4108] erfcf returns incorrectly rounded results compared to erfc jsm28 at gcc dot gnu.org
2012-02-26 16:34 ` jsm28 at gcc dot gnu.org
2012-03-01 21:19 ` jsm28 at gcc dot gnu.org
2007-02-28  2:34 [Bug math/4108] New: " myles at peakstreaminc dot com
2007-02-28  2:35 ` [Bug math/4108] " myles at peakstreaminc dot com

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