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Cxbx-Reloaded/import/OpenXDK/include/glibc/math.h

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/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* ANSI Standard: 4.5 MATHEMATICS <math.h>
*/
#ifndef _MATH_H
#define _MATH_H 1
# ifdef __cplusplus
extern "C" {
# endif
#include <defs.h>
#include <features.h>
#define __need_Emath
#include <errno.h>
/* Get machine-dependent HUGE_VAL value (returned on overflow). */
#include <huge_val.h>
/* Get machine-dependent NAN value (returned for some domain errors). */
#ifdef __USE_GNU
#include <nan.h>
#endif
/* Trigonometric functions. */
/* Arc cosine of X. */
extern __CONSTVALUE double acos __P ((double __x));
/* Arc sine of X. */
extern __CONSTVALUE double asin __P ((double __x));
/* Arc tangent of X. */
extern __CONSTVALUE double atan __P ((double __x));
/* Arc tangent of Y/X. */
extern __CONSTVALUE double atan2 __P ((double __y, double __x));
/* Cosine of X. */
extern __CONSTVALUE double cos __P ((double __x));
/* Sine of X. */
extern __CONSTVALUE double sin __P ((double __x));
extern __CONSTVALUE double _sin __P ((double __x));
/* Tangent of X. */
extern __CONSTVALUE double tan __P ((double __x));
/* Hyperbolic functions. */
/* Hyperbolic cosine of X. */
extern __CONSTVALUE double cosh __P ((double __x));
/* Hyperbolic sine of X. */
extern __CONSTVALUE double sinh __P ((double __x));
/* Hyperbolic tangent of X. */
extern __CONSTVALUE double tanh __P ((double __x));
#ifdef __USE_MISC
/* Hyperbolic arc cosine of X. */
extern __CONSTVALUE double acosh __P ((double __x));
/* Hyperbolic arc sine of X. */
extern __CONSTVALUE double asinh __P ((double __x));
/* Hyperbolic arc tangent of X. */
extern __CONSTVALUE double atanh __P ((double __x));
#endif
/* Exponential and logarithmic functions. */
/* Exponentional function of X. */
extern __CONSTVALUE double exp __P ((double __x));
/* Break VALUE into a normalized fraction and an integral power of 2. */
extern double frexp __P ((double __value, int *__exp));
/* X times (two to the EXP power). */
extern __CONSTVALUE double ldexp __P ((double __x, int __exp));
/* Natural logarithm of X. */
extern __CONSTVALUE double log __P ((double __x));
/* Base-ten logarithm of X. */
extern __CONSTVALUE double log10 __P ((double __x));
#ifdef __USE_MISC
/* Return exp(X) - 1. */
extern __CONSTVALUE double __expm1 __P ((double __x));
extern __CONSTVALUE double expm1 __P ((double __x));
/* Return log(1 + X). */
extern __CONSTVALUE double log1p __P ((double __x));
#endif
/* Break VALUE into integral and fractional parts. */
extern double modf __P ((double __value, double *__iptr));
/* Power functions. */
/* Return X to the Y power. */
extern __CONSTVALUE double pow __P ((double __x, double __y));
/* Return the square root of X. */
extern __CONSTVALUE double sqrt __P ((double __x));
#ifdef __USE_MISC
/* Return the cube root of X. */
extern __CONSTVALUE double cbrt __P ((double __x));
#endif
/* Nearest integer, absolute value, and remainder functions. */
/* Smallest integral value not less than X. */
extern __CONSTVALUE double ceil __P ((double __x));
/* Absolute value of X. */
extern __CONSTVALUE double fabs __P ((double __x));
/* Largest integer not greater than X. */
extern __CONSTVALUE double floor __P ((double __x));
/* Floating-point modulo remainder of X/Y. */
extern __CONSTVALUE double fmod __P ((double __x, double __y));
/* Return 0 if VALUE is finite or NaN, +1 if it
is +Infinity, -1 if it is -Infinity. */
extern __CONSTVALUE int __isinf __P ((double __value));
/* Return nonzero if VALUE is not a number. */
extern __CONSTVALUE int __isnan __P ((double __value));
/* Return nonzero if VALUE is finite and not NaN. */
extern __CONSTVALUE int __finite __P ((double __value));
#ifdef __OPTIMIZE__
#define __finite(value) (!__isinf(value))
#endif
/* Deal with an infinite or NaN result.
If ERROR is ERANGE, result is +Inf;
if ERROR is - ERANGE, result is -Inf;
otherwise result is NaN.
This will set `errno' to either ERANGE or EDOM,
and may return an infinity or NaN, or may do something else. */
extern double __infnan __P ((int __error));
/* Return X with its signed changed to Y's. */
extern __CONSTVALUE double __copysign __P ((double __x, double __y));
/* Return X times (2 to the Nth power). */
extern __CONSTVALUE double __scalb __P ((double __x, int __n));
#ifdef __OPTIMIZE__
#define __scalb(x, n) ldexp ((x), (n))
#endif
/* Return the remainder of X/Y. */
extern __CONSTVALUE double __drem __P ((double __x, double __y));
/* Return the base 2 signed integral exponent of X. */
extern __CONSTVALUE double __logb __P ((double __x));
#ifdef __USE_MISC
/* Return the integer nearest X in the direction of the
prevailing rounding mode. */
extern __CONSTVALUE double __rint __P ((double __x));
extern __CONSTVALUE double rint __P ((double __x));
/* Return `sqrt(X*X + Y*Y)'. */
extern __CONSTVALUE double hypot __P ((double __x, double __y));
struct __cabs_complex
{
double __x, __y;
};
/* Return `sqrt(X*X + Y*Y)'. */
extern __CONSTVALUE double cabs __P ((struct __cabs_complex));
extern __CONSTVALUE int isinf __P ((double __value));
extern __CONSTVALUE int isnan __P ((double __value));
extern __CONSTVALUE int finite __P ((double __value));
extern __CONSTVALUE double infnan __P ((int __error));
extern __CONSTVALUE double copysign __P ((double __x, double __y));
extern __CONSTVALUE double scalb __P ((double __x, int __n));
extern __CONSTVALUE double drem __P ((double __x, double __y));
extern __CONSTVALUE double logb __P ((double __x));
#ifdef __OPTIMIZE__
#define isinf(value) __isinf(value)
#define isnan(value) __isnan(value)
#define infnan(error) __infnan(error)
#define finite(value) __finite(value)
#define copysign(x, y) __copysign((x), (y))
#define scalb(x, n) __scalb((x), (n))
#define drem(x, y) __drem((x), (y))
#define logb(x) __logb(x)
#endif /* Optimizing. */
#endif /* Use misc. */
#if 0
/* The "Future Library Directions" section of the
ANSI Standard reserves these as `float' and
`long double' versions of the above functions. */
extern __CONSTVALUE float acosf __P ((float __x));
extern __CONSTVALUE float asinf __P ((float __x));
extern __CONSTVALUE float atanf __P ((float __x));
extern __CONSTVALUE float atan2f __P ((float __y, float __x));
extern __CONSTVALUE float cosf __P ((float __x));
extern __CONSTVALUE float sinf __P ((float __x));
extern __CONSTVALUE float tanf __P ((float __x));
extern __CONSTVALUE float coshf __P ((float __x));
extern __CONSTVALUE float sinhf __P ((float __x));
extern __CONSTVALUE float tanhf __P ((float __x));
extern __CONSTVALUE float expf __P ((float __x));
extern float frexpf __P ((float __value, int *__exp));
extern __CONSTVALUE float ldexpf __P ((float __x, int __exp));
extern __CONSTVALUE float logf __P ((float __x));
extern __CONSTVALUE float log10f __P ((float __x));
extern float modff __P ((float __value, float *__iptr));
extern __CONSTVALUE float powf __P ((float __x, float __y));
extern __CONSTVALUE float sqrtf __P ((float __x));
extern __CONSTVALUE float ceilf __P ((float __x));
extern __CONSTVALUE float fabsf __P ((float __x));
extern __CONSTVALUE float floorf __P ((float __x));
extern __CONSTVALUE float fmodf __P ((float __x, float __y));
extern __CONSTVALUE __long_double_t acosl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t asinl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t atanl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t atan2l __P ((__long_double_t __y, __long_double_t __x));
extern __CONSTVALUE __long_double_t cosl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t sinl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t tanl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t coshl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t sinhl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t tanhl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t expl __P ((__long_double_t __x));
extern __long_double_t frexpl __P ((__long_double_t __value, int *__exp));
extern __CONSTVALUE __long_double_t ldexpl __P ((__long_double_t __x, int __exp));
extern __CONSTVALUE __long_double_t logl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t log10l __P ((__long_double_t __x));
extern __long_double_t modfl __P ((__long_double_t __value, __long_double_t * __ip));
extern __CONSTVALUE __long_double_t powl __P ((__long_double_t __x, __long_double_t __y));
extern __CONSTVALUE __long_double_t sqrtl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t ceill __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t fabsl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t floorl __P ((__long_double_t __x));
extern __CONSTVALUE __long_double_t fmodl __P ((__long_double_t __x, __long_double_t __y));
#endif /* 0 */
/* Get machine-dependent inline versions (if there are any). */
/*
#include <__math.h>
*/
# ifdef __cplusplus
}
# endif
#endif /* math.h */
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