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GNU C Library master sources branch, master, updated. glibc-2.15-715-g4f9d04a
- From: aj at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 2 May 2012 13:16:18 -0000
- Subject: GNU C Library master sources branch, master, updated. glibc-2.15-715-g4f9d04a
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- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4f9d04aa8fcc5008995409d524086121e9a840dc
commit 4f9d04aa8fcc5008995409d524086121e9a840dc
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed May 2 15:14:17 2012 +0200
Fix nexttoward bugs
[BZ #2550]
[BZ #2570]
* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: Use floating-point
comparisons to determine direction to adjust input.
diff --git a/ChangeLog b/ChangeLog
index 66deec2..4b36557 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-05-02 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+
+ [BZ #2550]
+ [BZ #2570]
+ * sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: Use floating-point
+ comparisons to determine direction to adjust input.
+
2012-05-01 Roland McGrath <roland@hack.frob.com>
* elf/Makefile ($(objpfx)check-localplt.out): Redirect the test's
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c b/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
index 9ecfef1..40f0c46 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
@@ -57,11 +57,7 @@ double __nexttoward(double x, long double y)
return x;
}
if(hx>=0) { /* x > 0 */
- if (hy<0||(ix>>20)>(iy>>52)
- || ((ix>>20)==(iy>>52)
- && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL)
- || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL)
- )))) { /* x > y, x -= ulp */
+ if (x > y) { /* x > 0 */
if(lx==0) hx -= 1;
lx -= 1;
} else { /* x < y, x += ulp */
@@ -69,11 +65,7 @@ double __nexttoward(double x, long double y)
if(lx==0) hx += 1;
}
} else { /* x < 0 */
- if (hy>=0||(ix>>20)>(iy>>52)
- || ((ix>>20)==(iy>>52)
- && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL)
- || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL)
- )))) { /* x < y, x -= ulp */
+ if (x < y) { /* x < 0 */
if(lx==0) hx -= 1;
lx -= 1;
} else { /* x > y, x += ulp */
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c | 12 ++----------
2 files changed, 9 insertions(+), 10 deletions(-)
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