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* [Bug math/2541] New: Incorrect return from float erfc (0X1.FFA002P+2)
@ 2006-04-12 22:08 hjl at lucon dot org
2006-04-23 17:49 ` [Bug math/2541] " drepper at redhat dot com
0 siblings, 1 reply; 5+ messages in thread
From: hjl at lucon dot org @ 2006-04-12 22:08 UTC (permalink / raw)
To: glibc-bugs
Failure: Test: erfc (0X1.FFA002P+2) == 0X1.F466E4P-97
Result:
is: 1.23359077991111300374e-29 0x1.f4676400000000000000p-97
should be: 1.23358596508625203565e-29 0x1.f466e400000000000000p-97
difference: 4.81482486096808963264e-35 0x1.00000000000000000000p-114
ulp : 64.0000
max.ulp : 0.0000
Maximal error of `erfc'
is : 64 ulp
accepted: 0 ulp
--
Summary: Incorrect return from float erfc (0X1.FFA002P+2)
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: aj at suse dot de
ReportedBy: hjl at lucon dot org
CC: glibc-bugs at sources dot redhat dot com
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=2541
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* [Bug math/2541] Incorrect return from float erfc (0X1.FFA002P+2)
2006-04-12 22:08 [Bug math/2541] New: Incorrect return from float erfc (0X1.FFA002P+2) hjl at lucon dot org
@ 2006-04-23 17:49 ` drepper at redhat dot com
0 siblings, 0 replies; 5+ messages in thread
From: drepper at redhat dot com @ 2006-04-23 17:49 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2006-04-23 17:49 -------
Suspended until somebody comes up with a patch.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |drepper at redhat dot com
Status|NEW |SUSPENDED
Summary|Incorrect return from float |Incorrect return from float
|erfc (0X1.FFA002P+2) |erfc (0X1.FFA002P+2)
http://sourceware.org/bugzilla/show_bug.cgi?id=2541
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* [Bug math/2541] Incorrect return from float erfc (0X1.FFA002P+2)
[not found] <bug-2541-131@http.sourceware.org/bugzilla/>
2012-02-19 18:07 ` 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; 5+ 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=2541
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 21:18:10 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/2541] Incorrect return from float erfc (0X1.FFA002P+2)
[not found] <bug-2541-131@http.sourceware.org/bugzilla/>
2012-02-19 18:07 ` 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; 5+ 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=2541
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 16:33:11 UTC ---
Patch submitted: http://sourceware.org/ml/libc-alpha/2012-02/msg00640.html
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* [Bug math/2541] Incorrect return from float erfc (0X1.FFA002P+2)
[not found] <bug-2541-131@http.sourceware.org/bugzilla/>
@ 2012-02-19 18:07 ` 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; 5+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-02-19 18:07 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=2541
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|SUSPENDED |NEW
AssignedTo|aj at suse dot de |unassigned at sourceware
| |dot org
--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-19 18:07:22 UTC ---
As I noted in http://sourceware.org/ml/libc-alpha/2012-02/msg00392.html this
report is correct and the test should be added to the testsuite to document
this 64ulp error.
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end of thread, other threads:[~2012-03-01 21:19 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-04-12 22:08 [Bug math/2541] New: Incorrect return from float erfc (0X1.FFA002P+2) hjl at lucon dot org
2006-04-23 17:49 ` [Bug math/2541] " drepper at redhat dot com
[not found] <bug-2541-131@http.sourceware.org/bugzilla/>
2012-02-19 18:07 ` 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
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