Module Name: src
Committed By: maya
Date: Thu Feb 9 22:11:09 UTC 2017
Modified Files:
src/lib/libm/src: s_expm1.c s_expm1f.c
Log Message:
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.
To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/lib/libm/src/s_expm1.c
cvs rdiff -u -r1.10 -r1.11 src/lib/libm/src/s_expm1f.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libm/src/s_expm1.c
diff -u src/lib/libm/src/s_expm1.c:1.12 src/lib/libm/src/s_expm1.c:1.13
--- src/lib/libm/src/s_expm1.c:1.12 Sun May 26 22:01:55 2002
+++ src/lib/libm/src/s_expm1.c Thu Feb 9 22:11:09 2017
@@ -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 $");
#endif
/* expm1(x)
@@ -138,7 +138,9 @@ expm1(double x)
c = 0;
GET_HIGH_WORD(hx,x);
xsb = hx&0x80000000; /* sign bit of x */
+#ifdef DEAD_CODE
if(xsb==0) y=x; else y= -x; /* y = |x| */
+#endif
hx &= 0x7fffffff; /* high word of |x| */
/* filter out huge and non-finite argument */
Index: src/lib/libm/src/s_expm1f.c
diff -u src/lib/libm/src/s_expm1f.c:1.10 src/lib/libm/src/s_expm1f.c:1.11
--- src/lib/libm/src/s_expm1f.c:1.10 Sun May 26 22:01:55 2002
+++ src/lib/libm/src/s_expm1f.c Thu Feb 9 22:11:09 2017
@@ -15,7 +15,7 @@
#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$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 */
