xref: /netbsd-src/sys/arch/hppa/include/math.h (revision 08c81a9c2dc8c7300e893321eb65c0925d60871c)
1 /*	$NetBSD: math.h,v 1.1 2002/06/05 01:04:22 fredette Exp $	*/
2 
3 /*
4  * ISO C99
5  */
6 #if !defined(_ANSI_SOURCE) && \
7     (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
8      defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
9 extern __const char	__nanf[];
10 #define	NAN		(*(__const float *)(__const void *)__nanf)
11 #endif
12