about summary refs log tree commit diff
path: root/math/s_nextafter.c
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-31 13:33:18 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-31 13:33:18 +0000
commit32c075e1f01849e161724bbd400ba77244e482cc (patch)
tree5f083a3f352104f32bb6c902d57fa3f294bd8d4d /math/s_nextafter.c
parentd6220e9ee38c1c9285221b023346201ec5f511b3 (diff)
downloadglibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.gz
glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.xz
glibc-32c075e1f01849e161724bbd400ba77244e482cc.zip
.
Diffstat (limited to 'math/s_nextafter.c')
-rw-r--r--math/s_nextafter.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/math/s_nextafter.c b/math/s_nextafter.c
index 9c678b79c5..d2af52dda3 100644
--- a/math/s_nextafter.c
+++ b/math/s_nextafter.c
@@ -26,7 +26,7 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
 #define nexttoward __internal_nexttoward
 
 #include <math.h>
-#include "math_private.h"
+#include <math_private.h>
 #include <float.h>
 
 #ifdef __STDC__
@@ -49,9 +49,12 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
 	   return x+y;
 	if(x==y) return y;		/* x=y, return y */
 	if((ix|lx)==0) {			/* x == 0 */
+	    double u;
 	    INSERT_WORDS(x,hy&0x80000000,1);	/* return +-minsubnormal */
-	    y = x*x;
-	    if(y==x) return y; else return x;	/* raise underflow flag */
+	    u = math_opt_barrier (x);
+	    u = u*u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
 	}
 	if(hx>=0) {				/* x > 0 */
 	    if(hx>hy||((hx==hy)&&(lx>ly))) {	/* x > y, x -= ulp */
@@ -74,15 +77,12 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
 	if(hy>=0x7ff00000) {
 	  x = x+x;	/* overflow  */
 	  if (FLT_EVAL_METHOD != 0 && FLT_EVAL_METHOD != 1)
-	    asm ("" : "=m"(x) : "m"(x));
+	    asm ("" : "+m"(x));
 	  return x;	/* overflow  */
 	}
-	if(hy<0x00100000) {		/* underflow */
-	    y = x*x;
-	    if(y!=x) {		/* raise underflow flag */
-	        INSERT_WORDS(y,hx,lx);
-		return y;
-	    }
+	if(hy<0x00100000) {
+	    double u = x*x;			/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
 	}
 	INSERT_WORDS(x,hx,lx);
 	return x;