[src/trunk]: src/include C99: provide HUGE_VALF and HUGE_VALL.

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

details:   https://anonhg.NetBSD.org/src/rev/7a0dd2a809ec
branches:  trunk
changeset: 554194:7a0dd2a809ec
user:      kleink <kleink%NetBSD.org@localhost>
date:      Sat Oct 25 22:35:46 2003 +0000

description:
C99: provide HUGE_VALF and HUGE_VALL.

diffstat:

 include/math.h |  22 ++++++++++++++++------
 1 files changed, 16 insertions(+), 6 deletions(-)

diffs (38 lines):

diff -r 7507bf353e24 -r 7a0dd2a809ec include/math.h
--- a/include/math.h    Sat Oct 25 22:34:57 2003 +0000
+++ b/include/math.h    Sat Oct 25 22:35:46 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: math.h,v 1.26 2003/05/17 20:42:28 thorpej Exp $        */
+/*     $NetBSD: math.h,v 1.27 2003/10/25 22:35:46 kleink Exp $ */
 
 /*
  * ====================================================
@@ -48,13 +48,23 @@
 /*
  * ISO C99
  */
-#if defined(__HAVE_NANF) && \
-    (!defined(_ANSI_SOURCE) && \
-     (defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
-      defined(_NETBSD_SOURCE)))
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
+    !defined(_XOPEN_SOURCE) || \
+    ((__STDC_VERSION__ - 0) >= 199901L) || \
+    ((_POSIX_C_SOURCE - 0) >= 200112L) || \
+    ((_XOPEN_SOURCE  - 0) >= 600) || \
+    defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
+extern __const union __float_u __infinityf;
+#define        HUGE_VALF       __infinityf.__val
+
+extern __const union __long_double_u __infinityl;
+#define        HUGE_VALL       __infinityl.__val
+
+#ifdef __HAVE_NANF
 extern __const union __float_u __nanf;
 #define        NAN             __nanf.__val
-#endif /* __HAVE_NANF && (!_ANSI_SOURCE && ....) */
+#endif /* __HAVE_NANF */
+#endif /* !_ANSI_SOURCE && ... */
 
 /*
  * XOPEN/SVID