This is the mail archive of the libc-hacker@sourceware.org mailing list for the glibc project.

Note that libc-hacker is a closed list. You may look at the archives of this list, but subscription and posting are not open.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[PATCH] Fix math/test-{ldouble,ildoubl} failures on s390{,x},sparc{,64} and alpha

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
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]