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ADA Programming Guide
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ADA Programming Guide.iso
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math.h
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1996-01-30
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/* This is file math.h */
/* This file may have been modified by DJ Delorie (Jan 1991). If so,
** these modifications are Coyright (C) 1991 DJ Delorie, 24 Kirsten Ave,
** Rochester NH, 03867-2954, USA.
*/
/* This may look like C code, but it is really -*- C++ -*- */
/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea (dl@rocky.oswego.edu)
This file is part of GNU CC.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY. No author or distributor
accepts responsibility to anyone for the consequences of using it
or for whether it serves any particular purpose or works at all,
unless he says so in writing. Refer to the GNU CC General Public
License for full details.
Everyone is granted permission to copy, modify and redistribute
GNU CC, but only under the conditions described in the
GNU CC General Public License. A copy of this license is
supposed to have been given to you along with GNU CC so you
can know your rights and responsibilities. It should be in a
file named COPYING. Among other things, the copyright notice
and this notice must be preserved on all copies.
*/
#ifndef _math_h
#define _math_h 1
#if defined(hp300) && defined(__HAVE_FPU__)
#define __HAVE_68881__ 1
#endif
#ifdef __HAVE_68881__ /* MC68881/2 Floating-Point Coprocessor */
#include <math-68881.h>
#ifdef __cplusplus
extern "C" { /* fill in what we've left out */
#endif
double acosh(double);
double asinh(double);
double cbrt(double);
double copysign(double,double);
double erf(double);
double erfc(double);
double finite(double);
double gamma(double);
double hypot(double,double);
double infnan(int);
int isinf(double);
int isnan(double);
double j0(double);
double j1(double);
double jn(int, double);
double lgamma(double);
double y0(double);
double y1(double);
double yn(int, double);
double aint(double);
double anint(double);
int irint(double);
int nint(double);
#ifdef __cplusplus
}
#endif
/* Please add inline asm code for other machines here! */
#else
#ifdef __cplusplus
extern "C" {
#endif
double acos(double);
double acosh(double);
double asin(double);
double asinh(double);
double atan(double);
double atan2(double, double);
double atanh(double);
double cbrt(double);
double ceil(double);
double copysign(double,double);
double cos(double);
double cosh(double);
double drem(double,double);
double erf(double);
double erfc(double);
double exp(double);
double expm1(double);
double fabs(double);
double finite(double);
double floor(double);
double fmod(double,double);
double frexp(double, int*);
double gamma(double);
double hypot(double,double);
double infnan(int);
#if !defined(sequent) && !defined(DGUX) /* see below */
int isinf(double);
int isnan(double);
#endif
double j0(double);
double j1(double);
double jn(int, double);
double ldexp(double, int);
double lgamma(double);
double log(double);
double log10(double);
double log1p(double);
double logb(double);
double log2(double);
double modf(double, double*);
long double modfl(long double, long double *);
double pow(double, double);
double pow2(double);
double pow10(double);
double rint(double);
double scalb(double, int);
double sin(double);
double sinh(double);
double sqrt(double);
double tan(double);
double tanh(double);
double y0(double);
double y1(double);
double yn(int, double);
double aint(double);
double anint(double);
int irint(double);
int nint(double);
#ifdef __cplusplus
}
#endif
#endif
/* libg++ doesn't use this since it is not available on some systems */
/* the following ifdef is just for compiling OOPS */
#ifndef DONT_DECLARE_EXCEPTION
struct libm_exception
{
int type;
char* name;
double arg1, arg2, retval;
};
#define DOMAIN 1
#define SING 2
#define OVERFLOW 3
#define UNDERFLOW 4
#define TLOSS 5
#define PLOSS 6
#ifdef __cplusplus
extern "C" int matherr(libm_exception*);
#endif
#endif
#include <values.h>
/* On some systems, HUGE ought to be MAXFLOAT or IEEE infinity */
#ifndef HUGE
#define HUGE MAXDOUBLE
#endif
/* sequents don't supply these. The following should suffice */
#if defined(sequent) || defined(DGUX)
static inline int isnan(double x) { return x != x; }
static inline int isinf(double x) { return x > MAXDOUBLE || x < -MAXDOUBLE; }
#endif
/* These seem to be sun & sysV names of these constants */
#ifndef M_E
#define M_E 2.7182818284590452354
#endif
#ifndef M_LOG2E
#define M_LOG2E 1.4426950408889634074
#endif
#ifndef M_LOG10E
#define M_LOG10E 0.43429448190325182765
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923
#endif
#ifndef M_1_PI
#define M_1_PI 0.31830988618379067154
#endif
#ifndef M_PI_4
#define M_PI_4 0.78539816339744830962
#endif
#ifndef M_2_PI
#define M_2_PI 0.63661977236758134308
#endif
#ifndef M_2_SQRTPI
#define M_2_SQRTPI 1.12837916709551257390
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440
#endif
#ifndef PI /* as in stroustrup */
#define PI M_PI
#endif
#ifndef PI2
#define PI2 M_PI_2
#endif
#endif