summaryrefslogtreecommitdiff
path: root/lib/libm/src
diff options
context:
space:
mode:
authormaya <maya@NetBSD.org>2017-02-09 22:11:09 +0000
committermaya <maya@NetBSD.org>2017-02-09 22:11:09 +0000
commit99e9214616df73d69db7412f047f8448abed3499 (patch)
tree8e2039b1fd27ccd61c6a142ce4a6d683b0b71064 /lib/libm/src
parentb53288a0a8cde9b249db9f847c65423ebd20a488 (diff)
ifdef out some dead code. improves code readability.
all later users of y first assign another value. using ifdefs to make potential future code syncs easier, as is done elsewhere. suggested by coverity, CID 1300929, 1300930.
Diffstat (limited to 'lib/libm/src')
-rw-r--r--lib/libm/src/s_expm1.c4
-rw-r--r--lib/libm/src/s_expm1f.c4
2 files changed, 6 insertions, 2 deletions
diff --git a/lib/libm/src/s_expm1.c b/lib/libm/src/s_expm1.c
index 7ac6fc90a2f..8821ac4ff22 100644
--- a/lib/libm/src/s_expm1.c
+++ b/lib/libm/src/s_expm1.c
@@ -12,7 +12,7 @@
#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$NetBSD: s_expm1.c,v 1.12 2002/05/26 22:01:55 wiz Exp $");
+__RCSID("$NetBSD: s_expm1.c,v 1.13 2017/02/09 22:11:09 maya Exp $");
#endif
/* expm1(x)
@@ -138,7 +138,9 @@ expm1(double x)
c = 0;
GET_HIGH_WORD(hx,x);
xsb = hx&0x80000000; /* sign bit of x */
+#ifdef DEAD_CODE
if(xsb==0) y=x; else y= -x; /* y = |x| */
+#endif
hx &= 0x7fffffff; /* high word of |x| */
/* filter out huge and non-finite argument */
diff --git a/lib/libm/src/s_expm1f.c b/lib/libm/src/s_expm1f.c
index 30ee5ae4f81..e63062e0c0b 100644
--- a/lib/libm/src/s_expm1f.c
+++ b/lib/libm/src/s_expm1f.c
@@ -15,7 +15,7 @@
#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$NetBSD: s_expm1f.c,v 1.10 2002/05/26 22:01:55 wiz Exp $");
+__RCSID("$NetBSD: s_expm1f.c,v 1.11 2017/02/09 22:11:09 maya Exp $");
#endif
#include "math.h"
@@ -46,7 +46,9 @@ expm1f(float x)
c = 0;
GET_FLOAT_WORD(hx,x);
xsb = hx&0x80000000; /* sign bit of x */
+#ifdef DEAD_CODE
if(xsb==0) y=x; else y= -x; /* y = |x| */
+#endif
hx &= 0x7fffffff; /* high word of |x| */
/* filter out huge and non-finite argument */