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const -> __const and include <sys/cdefs.h> earlier; fixes PR lib/9052 by Takahiro Kambe.
2000-01-04 17:20:05 +03:00
/* $NetBSD: math.h,v 1.2 2000/01/04 14:20:14 kleink Exp $ */
C99: Define a NAN macro in <math.h> which evaulates to a constant expression of a single-precision quiet NaN; only to be defined on platforms that do support this value.
1999-12-23 13:15:05 +03:00
/*
* ISO C99
*/
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
!defined(_XOPEN_SOURCE) || defined(_ISOC99_SOURCE)
const -> __const and include <sys/cdefs.h> earlier; fixes PR lib/9052 by Takahiro Kambe.
2000-01-04 17:20:05 +03:00
extern __const char __nanf[];
#define NAN (*(__const float *)(__const void *)__nanf)
C99: Define a NAN macro in <math.h> which evaulates to a constant expression of a single-precision quiet NaN; only to be defined on platforms that do support this value.
1999-12-23 13:15:05 +03:00
#endif