Bug 2548

Summary:	Incorrect return from float rint (0X1.000006P+21)
Product:	glibc	Reporter:	H.J. Lu <hjl.tools>
Component:	math	Assignee:	Joseph Myers <jsm28>
Status:	RESOLVED FIXED
Severity:	normal	CC:	drepper.fsp, glibc-bugs, kononov
Priority:	P2	Flags:	fweimer: security-
Version:	unspecified
Target Milestone:	---
Host:	x86_64-unknown-linux-gnu	Target:	x86_64-unknown-linux-gnu
Build:	x86_64-unknown-linux-gnu	Last reconfirmed:

Description H.J. Lu 2006-04-12 22:18:47 UTC

Failure: Test: rint (0X1.000006P+21) == 0X1.000008P+21
Result:
 is:          2.09715200000000000000e+06   0x1.00000000000000000000p+21
 should be:   2.09715300000000000000e+06   0x1.00000800000000000000p+21
 difference:  1.00000000000000000000e+00   0x1.00000000000000000000p+0
 ulp       :  4.0000
 max.ulp   :  0.0000

Comment 1 Ulrich Drepper 2006-04-23 17:52:10 UTC

Suspended until somebody comes up with a patch.

Comment 2 Joseph Myers 2012-02-19 23:28:04 UTC

Patch posted: http://sourceware.org/ml/libc-alpha/2012-02/msg00397.html

Comment 3 Joseph Myers 2012-02-19 23:29:37 UTC

*** Bug 10089 has been marked as a duplicate of this bug. ***

Comment 4 Joseph Myers 2012-02-22 13:08:52 UTC

Fixed.

commit fe45ce09f366f2260aef528d37ae35070b3a2a36
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Feb 22 13:01:20 2012 +0000

    Fix rintf rounding.