math.h revision 1.3 
11.3Smatt/*	$NetBSD: math.h,v 1.3 2003/10/06 05:27:19 matt Exp $	*/
21.2Sbjh21
31.2Sbjh21#include <sys/featuretest.h>
41.1Sfredette
51.3Smatt#define	__HAVE_NANF
61.1Sfredette/*
71.1Sfredette * ISO C99
81.1Sfredette */
91.1Sfredette#if !defined(_ANSI_SOURCE) && \
101.2Sbjh21    (defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
111.2Sbjh21     defined(_NETBSD_SOURCE))
121.3Smattextern const union __float_u __nanf;
131.1Sfredette#endif
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