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NetBSD/sys/arch/arm32/include/math.h

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Improve namespace test macros a bit.
2000-02-05 17:04:36 +03:00
/* $NetBSD: math.h,v 1.3 2000/02/05 14:04:37 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
*/
Improve namespace test macros a bit.
2000-02-05 17:04:36 +03:00
#if !defined(_ANSI_SOURCE) && \
(!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
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