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Diffstat (limited to 'gnu/lib/libg++/g++-include/math.h')
| -rw-r--r-- | gnu/lib/libg++/g++-include/math.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/gnu/lib/libg++/g++-include/math.h b/gnu/lib/libg++/g++-include/math.h new file mode 100644 index 000000000000..2bf43305197e --- /dev/null +++ b/gnu/lib/libg++/g++-include/math.h @@ -0,0 +1,221 @@ +// 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 the GNU C++ Library. This 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. This 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 this library; if not, write to the Free Software +Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + + +#ifndef _math_h +#ifdef __GNUG__ +#pragma interface +#endif +#define _math_h 1 + +#if defined(hp300) && defined(__HAVE_FPU__) +#define __HAVE_68881__ 1 +#endif + +#if defined(masscomp) +#define __HAVE_68881__ 1 +#endif + +#ifdef __HAVE_68881__ /* MC68881/2 Floating-Point Coprocessor */ +extern "C" { /* fill in what we've left out */ +#include <math-68881.h> + +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); +} +/* Please add inline asm code for other machines here! */ +#else +extern "C" { + +#include <_G_config.h> + +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); +int 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) &&!defined(sony) && !defined(masscomp) && !defined(hpux) +/* 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 modf(double, double*); +double pow(double, double); +double rint(double); +double scalb _G_ARGS((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); +} + +#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 + +extern "C" int matherr(libm_exception*); + +#endif + +#include <float.h> + +/* On some systems, HUGE ought to be MAXFLOAT or IEEE infinity */ + +#ifndef HUGE +#define HUGE DBL_MAX +#endif +#ifndef HUGE_VAL +#define HUGE_VAL DBL_MAX +#endif + + +/* sequents don't supply these. The following should suffice */ +#if defined(sequent) || defined(DGUX) || defined(sony) || defined(masscomp) \ +|| defined(hpux) +#include <float.h> +static inline int isnan(double x) { return x != x; } +static inline int isinf(double x) { return x > DBL_MAX || x < -DBL_MAX; } +#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 |