NetBSD/sys/arch/i386/include/math.h

12 lines
335 B
C

/* $NetBSD: math.h,v 1.3 2000/02/05 14:04:37 kleink Exp $ */
/*
* ISO C99
*/
#if !defined(_ANSI_SOURCE) && \
(!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
extern __const char __nanf[];
#define NAN (*(__const float *)(__const void *)__nanf)
#endif