NetBSD/include/math.h

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/*
* Copyright (c) 1985, 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)math.h 5.8 (Berkeley) 4/2/91
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* $Id: math.h,v 1.4 1993/08/04 17:24:44 jtc Exp $
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*/
#ifndef _MATH_H_
#define _MATH_H_
#if defined(vax) || defined(tahoe) /* DBL_MAX from float.h */
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#define HUGE_VAL 1.701411834604692294E+38
#else
extern char __infinity[]; /* bytes for IEEE754 +Infinity */
#define HUGE_VAL (*(double *) __infinity)
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#endif
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
#if defined(vax) || defined(tahoe)
/*
* HUGE for the VAX and Tahoe converts to the largest possible F-float value.
* This implies an understanding of the conversion behavior of atof(3). It
* was defined to be the largest float so that overflow didn't occur when it
* was assigned to a single precision number. HUGE_VAL is strongly preferred.
*/
#define HUGE 1.701411733192644270E+38
#else
#define HUGE HUGE_VAL
#endif
#endif
#define M_E 2.7182818284590452354 /* e */
#define M_LOG2E 1.4426950408889634074 /* log 2e */
#define M_LOG10E 0.43429448190325182765 /* log 10e */
#define M_LN2 0.69314718055994530942 /* log e2 */
#define M_LN10 2.30258509299404568402 /* log e10 */
#define M_PI 3.14159265358979323846 /* pi */
#define M_PI_2 1.57079632679489661923 /* pi/2 */
#define M_PI_4 0.78539816339744830962 /* pi/4 */
#define M_1_PI 0.31830988618379067154 /* 1/pi */
#define M_2_PI 0.63661977236758134308 /* 2/pi */
#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#include <sys/cdefs.h>
__BEGIN_DECLS
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__pure double acos __P((double));
__pure double asin __P((double));
__pure double atan __P((double));
__pure double atan2 __P((double, double));
__pure double ceil __P((double));
__pure double cos __P((double));
__pure double cosh __P((double));
__pure double exp __P((double));
__pure double fabs __P((double));
__pure double floor __P((double));
__pure double fmod __P((double, double));
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double frexp __P((double, int *));
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__pure double ldexp __P((double, int));
__pure double log __P((double));
__pure double log10 __P((double));
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double modf __P((double, double *));
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__pure double pow __P((double, double));
__pure double sin __P((double));
__pure double sinh __P((double));
__pure double sqrt __P((double));
__pure double tan __P((double));
__pure double tanh __P((double));
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
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__pure double acosh __P((double));
__pure double asinh __P((double));
__pure double atanh __P((double));
__pure double cabs(); /* we can't describe cabs()'s argument properly */
__pure double cbrt __P((double));
__pure double copysign __P((double, double));
__pure double drem __P((double, double));
__pure double erf __P((double));
__pure double erfc __P((double));
__pure double expm1 __P((double));
__pure int finite __P((double));
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double hypot __P((double, double));
#if defined(vax) || defined(tahoe)
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__pure double infnan __P((int));
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#endif
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__pure int isinf __P((double));
__pure int isnan __P((double));
__pure double j0 __P((double));
__pure double j1 __P((double));
__pure double jn __P((int, double));
__pure double lgamma __P((double));
__pure double log1p __P((double));
__pure double logb __P((double));
__pure double rint __P((double));
__pure double scalb __P((double, int));
__pure double y0 __P((double));
__pure double y1 __P((double));
__pure double yn __P((int, double));
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#endif
__END_DECLS
#endif /* _MATH_H_ */