From: Jakub Jelinek <jakub@redhat.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Glibc hackers <libc-hacker@sources.redhat.com>
Subject: [PATCH] Fix math/test-{ldouble,ildoubl} failures on s390{,x}, sparc{,64} and alpha
Date: Fri, 29 May 2009 17:11:00 -0000 [thread overview]
Message-ID: <20090529171130.GB3101@sunsite.ms.mff.cuni.cz> (raw)
Hi!
Similar patch to what Andreas posted for ppc long double, this time for IEEE
quad. Tested on s390{,x}-linux.
2009-05-29 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ieee754/ldbl-128/s_expm1l.c: Include <errno.h>.
(__expm1l): Set errno to ERANGE on overflow.
* sysdeps/ieee754/ldbl-128/s_tanl.c: Include <errno.h>.
(__tanl): Set errno to EDOM for ±Inf.
* sysdeps/ieee754/ldbl-128/s_cosl.c: Include <errno.h>.
(__cosl): Set errno to EDOM for ±Inf.
* sysdeps/ieee754/ldbl-128/s_sinl.c: Include <errno.h>.
(__sinl): Set errno to EDOM for ±Inf.
--- libc/sysdeps/ieee754/ldbl-128/s_expm1l.c.jj 2009-05-16 13:23:38.000000000 -0400
+++ libc/sysdeps/ieee754/ldbl-128/s_expm1l.c 2009-05-29 12:09:10.000000000 -0400
@@ -53,6 +53,7 @@
+#include <errno.h>
#include "math.h"
#include "math_private.h"
@@ -121,7 +122,10 @@ __expm1l (long double x)
/* Overflow. */
if (x > maxlog)
- return (big * big);
+ {
+ __set_errno (ERANGE);
+ return (big * big);
+ }
/* Minimum value. */
if (x < minarg)
--- libc/sysdeps/ieee754/ldbl-128/s_tanl.c.jj 2009-05-16 13:23:38.000000000 -0400
+++ libc/sysdeps/ieee754/ldbl-128/s_tanl.c 2009-05-29 12:28:12.000000000 -0400
@@ -44,6 +44,7 @@
* TRIG(x) returns trig(x) nearly rounded
*/
+#include <errno.h>
#include "math.h"
#include "math_private.h"
@@ -65,7 +66,14 @@
if(ix <= 0x3ffe921fb54442d1LL) return __kernel_tanl(x,z,1);
/* tanl(Inf or NaN) is NaN */
- else if (ix>=0x7fff000000000000LL) return x-x; /* NaN */
+ else if (ix>=0x7fff000000000000LL) {
+ if (ix == 0x7fff000000000000LL) {
+ GET_LDOUBLE_LSW64(n,x);
+ if (n == 0)
+ __set_errno (EDOM);
+ }
+ return x-x; /* NaN */
+ }
/* argument reduction needed */
else {
--- libc/sysdeps/ieee754/ldbl-128/s_cosl.c.jj 2009-05-16 13:23:38.000000000 -0400
+++ libc/sysdeps/ieee754/ldbl-128/s_cosl.c 2009-05-29 12:27:45.000000000 -0400
@@ -44,6 +44,7 @@
* TRIG(x) returns trig(x) nearly rounded
*/
+#include <errno.h>
#include "math.h"
#include "math_private.h"
@@ -66,7 +67,14 @@
return __kernel_cosl(x,z);
/* cos(Inf or NaN) is NaN */
- else if (ix>=0x7fff000000000000LL) return x-x;
+ else if (ix>=0x7fff000000000000LL) {
+ if (ix == 0x7fff000000000000LL) {
+ GET_LDOUBLE_LSW64(n,x);
+ if (n == 0)
+ __set_errno (EDOM);
+ }
+ return x-x;
+ }
/* argument reduction needed */
else {
--- libc/sysdeps/ieee754/ldbl-128/s_sinl.c.jj 2009-05-16 13:23:38.000000000 -0400
+++ libc/sysdeps/ieee754/ldbl-128/s_sinl.c 2009-05-29 12:27:27.000000000 -0400
@@ -44,6 +44,7 @@
* TRIG(x) returns trig(x) nearly rounded
*/
+#include <errno.h>
#include "math.h"
#include "math_private.h"
@@ -66,7 +67,14 @@
return __kernel_sinl(x,z,0);
/* sin(Inf or NaN) is NaN */
- else if (ix>=0x7fff000000000000LL) return x-x;
+ else if (ix>=0x7fff000000000000LL) {
+ if (ix == 0x7fff000000000000LL) {
+ GET_LDOUBLE_LSW64(n,x);
+ if (n == 0)
+ __set_errno (EDOM);
+ }
+ return x-x;
+ }
/* argument reduction needed */
else {
Jakub
reply other threads:[~2009-05-29 17:11 UTC|newest]
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