[src/trunk]: src/sys/sys Add two convenience macros for testing a zero fraction.

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

details:   https://anonhg.NetBSD.org/src/rev/e9091f1cc54e
branches:  trunk
changeset: 786733:e9091f1cc54e
user:      matt <matt%NetBSD.org@localhost>
date:      Wed May 08 05:27:01 2013 +0000

description:
Add two convenience macros for testing a zero fraction.

diffstat:

 sys/sys/ieee754.h |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r 9bfe3a48b09c -r e9091f1cc54e sys/sys/ieee754.h
--- a/sys/sys/ieee754.h Wed May 08 05:13:56 2013 +0000
+++ b/sys/sys/ieee754.h Wed May 08 05:27:01 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ieee754.h,v 1.8 2012/08/08 16:56:53 matt Exp $ */
+/*     $NetBSD: ieee754.h,v 1.9 2013/05/08 05:27:01 matt Exp $ */
 
 /*
  * Copyright (c) 1992, 1993
@@ -148,6 +148,7 @@
 #define        sngu_sign       sngu_sng.sng_sign
 #define        sngu_exp        sngu_sng.sng_exp
 #define        sngu_frac       sngu_sng.sng_frac
+#define        SNGU_ZEROFRAC_P(u)      ((u).sngu_frac != 0)
 
 union ieee_double_u {
        double                  dblu_d;
@@ -158,4 +159,6 @@
 #define        dblu_exp        dblu_dbl.dbl_exp
 #define        dblu_frach      dblu_dbl.dbl_frach
 #define        dblu_fracl      dblu_dbl.dbl_fracl
+#define        DBLU_ZEROFRAC_P(u)      (((u).dblu_frach|(u).dblu_fracl) != 0)
+
 #endif /* _SYS_IEEE754_H_ */