[src/trunk]: src/lib/libm/src EDOM should not be set on atan2(0, 0) in POSIX m...

[drochner <drochner%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2d061e25c04d
branches:  trunk
changeset: 757487:2d061e25c04d
user:      drochner <drochner%NetBSD.org@localhost>
date:      Wed Sep 01 10:44:28 2010 +0000

description:
EDOM should not be set on atan2(0,0) in POSIX mode, found by
Stathis Kamperis' testsuite

diffstat:

 lib/libm/src/k_standard.c |  3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diffs (20 lines):

diff -r b90309cb5592 -r 2d061e25c04d lib/libm/src/k_standard.c
--- a/lib/libm/src/k_standard.c Wed Sep 01 09:18:03 2010 +0000
+++ b/lib/libm/src/k_standard.c Wed Sep 01 10:44:28 2010 +0000
@@ -12,7 +12,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$NetBSD: k_standard.c,v 1.15 2010/01/27 20:23:53 drochner Exp $");
+__RCSID("$NetBSD: k_standard.c,v 1.16 2010/09/01 10:44:28 drochner Exp $");
 #endif
 
 #include "math.h"
@@ -139,7 +139,6 @@
                exc.retval = zero;
                if(_LIB_VERSION == _POSIX_) {
                  exc.retval = copysign(signbit(y) ? M_PI : zero, x);
-                 errno = EDOM;
                } else if (!matherr(&exc)) {
                  if(_LIB_VERSION == _SVID_) {
                        (void) WRITE2("atan2: DOMAIN error\n", 20);