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authorUlrich Drepper <drepper@redhat.com>2008-03-24 19:57:55 +0000
committerUlrich Drepper <drepper@redhat.com>2008-03-24 19:57:55 +0000
commitaf0498dc955f23c4e2eb28b1658ec2e86b4ab069 (patch)
tree48b7c50b5d05137ec01dbf6c4abcf95c4b3b70ee /sysdeps/ieee754/dbl-64
parent0facd3df4b2faeb6088fa9bf47e94ff6af256750 (diff)
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[BZ #5857]
2008-03-09  Andreas Jaeger  <aj@suse.de>
	[BZ #5857]
	* sysdeps/ieee754/dbl-64/s_rint.c (__rint): Handle j0==18.
	* sysdeps/ieee754/dbl-64/s_nearbyint.c (__nearbyint): Likewise.
  	Patch by Mark Elliott <mark.h.elliott@lmco.com>.

	* math/libm-test.inc (nearbyint_test): Add new test cases from #5857.
	(rint_test): Likewise.
Diffstat (limited to 'sysdeps/ieee754/dbl-64')
-rw-r--r--sysdeps/ieee754/dbl-64/s_nearbyint.c9
-rw-r--r--sysdeps/ieee754/dbl-64/s_rint.c11
2 files changed, 17 insertions, 3 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_nearbyint.c b/sysdeps/ieee754/dbl-64/s_nearbyint.c
index 32f5bf9447..71e14cfb6d 100644
--- a/sysdeps/ieee754/dbl-64/s_nearbyint.c
+++ b/sysdeps/ieee754/dbl-64/s_nearbyint.c
@@ -71,8 +71,15 @@ TWO52[2]={
 		if(((i0&i)|i1)==0) return x; /* x is integral */
 		i>>=1;
 		if(((i0&i)|i1)!=0) {
-		    if(j0==19) i1 = 0x40000000; else
+		  if (j0==19)
+		    i1 = 0x40000000;
+		  else if (j0<18)
 		    i0 = (i0&(~i))|((0x20000)>>j0);
+		  else
+		    {
+		      i0 &= ~i;
+		      i1 = 0x80000000;
+		    }
 		}
 	    }
 	} else if (j0>51) {
diff --git a/sysdeps/ieee754/dbl-64/s_rint.c b/sysdeps/ieee754/dbl-64/s_rint.c
index e5f241291c..4e6381efbe 100644
--- a/sysdeps/ieee754/dbl-64/s_rint.c
+++ b/sysdeps/ieee754/dbl-64/s_rint.c
@@ -67,8 +67,15 @@ TWO52[2]={
 		if(((i0&i)|i1)==0) return x; /* x is integral */
 		i>>=1;
 		if(((i0&i)|i1)!=0) {
-		    if(j0==19) i1 = 0x40000000; else
-		    i0 = (i0&(~i))|((0x20000)>>j0);
+		    if (j0==19)
+		      i1 = 0x40000000;
+		    else if (j0<18)
+		      i0 = (i0&(~i))|((0x20000)>>j0);
+		    else
+		      {
+			i0 &= ~i;
+			i1 = 0x80000000;
+		      }
 		}
 	    }
 	} else if (j0>51) {