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* [Bug math/13921] New: y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception
@ 2012-03-28 0:04 jsm28 at gcc dot gnu.org
2012-03-28 9:55 ` [Bug math/13921] " jsm28 at gcc dot gnu.org
2014-06-26 13:39 ` fweimer at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-03-28 0:04 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13921
Bug #: 13921
Summary: y0l, y1l, ynl of -LDBL_MAX raise spurious overflow
exception
Product: glibc
Version: 2.15
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: jsm28@gcc.gnu.org
Classification: Unclassified
y0l, y1l, and ynl, applied to -LDBL_MAX, raise a spurious OVERFLOW exception in
addition to a correct INVALID exception; tested x86. Example testcase:
#include <errno.h>
#include <fenv.h>
#include <math.h>
#include <stdio.h>
#include <float.h>
volatile long double d = -LDBL_MAX;
int
main (void)
{
feclearexcept (FE_ALL_EXCEPT);
errno = 0;
volatile long double r = ynl (2, d);
if (fetestexcept (FE_DIVBYZERO))
printf ("DIVBYZERO ");
if (fetestexcept (FE_INEXACT))
printf ("INEXACT ");
if (fetestexcept (FE_INVALID))
printf ("INVALID ");
if (fetestexcept (FE_OVERFLOW))
printf ("OVERFLOW ");
if (fetestexcept (FE_UNDERFLOW))
printf ("UNDERFLOW ");
printf ("%.18Lg %m\n", r);
return 0;
}
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* [Bug math/13921] y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception
2012-03-28 0:04 [Bug math/13921] New: y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception jsm28 at gcc dot gnu.org
@ 2012-03-28 9:55 ` jsm28 at gcc dot gnu.org
2014-06-26 13:39 ` fweimer at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-03-28 9:55 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13921
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> 2012-03-28 09:40:11 UTC ---
Fixed by:
commit 41bf21a1e72c907b1a065727c3b5da43821ca6b0
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Mar 28 09:32:12 2012 +0000
Avoid overflows from long double functions using __kernel_standard.
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* [Bug math/13921] y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception
2012-03-28 0:04 [Bug math/13921] New: y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception jsm28 at gcc dot gnu.org
2012-03-28 9:55 ` [Bug math/13921] " jsm28 at gcc dot gnu.org
@ 2014-06-26 13:39 ` fweimer at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2014-06-26 13:39 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=13921
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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2012-03-28 0:04 [Bug math/13921] New: y0l, y1l, ynl of -LDBL_MAX raise spurious overflow exception jsm28 at gcc dot gnu.org
2012-03-28 9:55 ` [Bug math/13921] " jsm28 at gcc dot gnu.org
2014-06-26 13:39 ` fweimer at redhat dot com
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