293 lines
8.2 KiB
C
293 lines
8.2 KiB
C
/* $NetBSD: math.h,v 1.13 1998/05/11 11:06:23 kleink Exp $ */
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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/*
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* @(#)fdlibm.h 5.1 93/09/24
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*/
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#ifndef _MATH_H_
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#define _MATH_H_
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#include <sys/featuretest.h>
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/*
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* ANSI/POSIX
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*/
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extern char __infinity[];
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#define HUGE_VAL (*(double *) __infinity)
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/*
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* XOPEN/SVID
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*/
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
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defined(_XOPEN_SOURCE)
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#define M_E 2.7182818284590452354 /* e */
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#define M_LOG2E 1.4426950408889634074 /* log 2e */
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#define M_LOG10E 0.43429448190325182765 /* log 10e */
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#define M_LN2 0.69314718055994530942 /* log e2 */
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#define M_LN10 2.30258509299404568402 /* log e10 */
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#define M_PI 3.14159265358979323846 /* pi */
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#define M_PI_2 1.57079632679489661923 /* pi/2 */
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#define M_PI_4 0.78539816339744830962 /* pi/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/pi */
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#define M_2_PI 0.63661977236758134308 /* 2/pi */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
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#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
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#define MAXFLOAT ((float)3.40282346638528860e+38)
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extern int signgam;
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE || _XOPEN_SOURCE */
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE)
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enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
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#define _LIB_VERSION_TYPE enum fdversion
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#define _LIB_VERSION _fdlib_version
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/* if global variable _LIB_VERSION is not desirable, one may
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* change the following to be a constant by:
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* #define _LIB_VERSION_TYPE const enum version
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* In that case, after one initializes the value _LIB_VERSION (see
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* s_lib_version.c) during compile time, it cannot be modified
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* in the middle of a program
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*/
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extern _LIB_VERSION_TYPE _LIB_VERSION;
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#define _IEEE_ fdlibm_ieee
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#define _SVID_ fdlibm_svid
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#define _XOPEN_ fdlibm_xopen
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#define _POSIX_ fdlibm_posix
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#ifndef __cplusplus
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struct exception {
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int type;
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char *name;
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double arg1;
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double arg2;
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double retval;
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};
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#endif
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#define HUGE MAXFLOAT
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/*
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* set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
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* (one may replace the following line by "#include <values.h>")
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*/
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#define X_TLOSS 1.41484755040568800000e+16
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#define DOMAIN 1
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#define SING 2
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#define OVERFLOW 3
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#define UNDERFLOW 4
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#define TLOSS 5
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#define PLOSS 6
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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/*
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* ANSI/POSIX
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*/
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extern double acos __P((double));
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extern double asin __P((double));
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extern double atan __P((double));
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extern double atan2 __P((double, double));
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extern double cos __P((double));
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extern double sin __P((double));
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extern double tan __P((double));
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extern double cosh __P((double));
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extern double sinh __P((double));
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extern double tanh __P((double));
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extern double exp __P((double));
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extern double frexp __P((double, int *));
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extern double ldexp __P((double, int));
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extern double log __P((double));
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extern double log10 __P((double));
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extern double modf __P((double, double *));
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extern double pow __P((double, double));
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extern double sqrt __P((double));
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extern double ceil __P((double));
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extern double fabs __P((double));
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extern double floor __P((double));
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extern double fmod __P((double, double));
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
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defined(_XOPEN_SOURCE)
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extern double erf __P((double));
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extern double erfc __P((double));
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extern double gamma __P((double));
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extern double hypot __P((double, double));
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extern int isinf __P((double));
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extern int isnan __P((double));
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extern int finite __P((double));
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extern double j0 __P((double));
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extern double j1 __P((double));
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extern double jn __P((int, double));
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extern double lgamma __P((double));
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extern double y0 __P((double));
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extern double y1 __P((double));
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extern double yn __P((int, double));
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#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
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extern double acosh __P((double));
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extern double asinh __P((double));
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extern double atanh __P((double));
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extern double cbrt __P((double));
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extern double expm1 __P((double));
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extern int ilogb __P((double));
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extern double log1p __P((double));
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extern double logb __P((double));
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extern double nextafter __P((double, double));
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extern double remainder __P((double, double));
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extern double rint __P((double));
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extern double scalb __P((double, double));
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#endif /* !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500 */
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#endif /* !_ANSI_SOURCE) && !_POSIX_C_SOURCE || _XOPEN_SOURCE */
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE)
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#ifndef __cplusplus
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extern int matherr __P((struct exception *));
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#endif
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/*
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* IEEE Test Vector
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*/
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extern double significand __P((double));
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/*
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* Functions callable from C, intended to support IEEE arithmetic.
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*/
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extern double copysign __P((double, double));
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extern double scalbn __P((double, int));
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/*
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* BSD math library entry points
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*/
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extern double cabs();
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extern double drem __P((double, double));
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE) || defined(_REENTRANT)
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/*
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* Reentrant version of gamma & lgamma; passes signgam back by reference
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* as the second argument; user must allocate space for signgam.
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*/
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extern double gamma_r __P((double, int *));
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extern double lgamma_r __P((double, int *));
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#endif /* !... || _REENTRANT */
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE)
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/* float versions of ANSI/POSIX functions */
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extern float acosf __P((float));
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extern float asinf __P((float));
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extern float atanf __P((float));
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extern float atan2f __P((float, float));
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extern float cosf __P((float));
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extern float sinf __P((float));
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extern float tanf __P((float));
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extern float coshf __P((float));
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extern float sinhf __P((float));
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extern float tanhf __P((float));
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extern float expf __P((float));
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extern float frexpf __P((float, int *));
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extern float ldexpf __P((float, int));
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extern float logf __P((float));
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extern float log10f __P((float));
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extern float modff __P((float, float *));
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extern float powf __P((float, float));
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extern float sqrtf __P((float));
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extern float ceilf __P((float));
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extern float fabsf __P((float));
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extern float floorf __P((float));
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extern float fmodf __P((float, float));
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extern float erff __P((float));
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extern float erfcf __P((float));
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extern float gammaf __P((float));
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extern float hypotf __P((float, float));
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extern int isnanf __P((float));
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extern int finitef __P((float));
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extern float j0f __P((float));
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extern float j1f __P((float));
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extern float jnf __P((int, float));
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extern float lgammaf __P((float));
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extern float y0f __P((float));
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extern float y1f __P((float));
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extern float ynf __P((int, float));
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extern float acoshf __P((float));
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extern float asinhf __P((float));
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extern float atanhf __P((float));
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extern float cbrtf __P((float));
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extern float logbf __P((float));
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extern float nextafterf __P((float, float));
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extern float remainderf __P((float, float));
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extern float scalbf __P((float, float));
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/*
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* float version of IEEE Test Vector
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*/
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extern float significandf __P((float));
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/*
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* Float versions of functions callable from C, intended to support
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* IEEE arithmetic.
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*/
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extern float copysignf __P((float, float));
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extern int ilogbf __P((float));
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extern float rintf __P((float));
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extern float scalbnf __P((float, int));
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/*
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* float versions of BSD math library entry points
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*/
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extern float cabsf ();
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extern float dremf __P((float, float));
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extern float expm1f __P((float));
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extern float log1pf __P((float));
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE) || defined(_REENTRANT)
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/*
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* Float versions of reentrant version of gamma & lgamma; passes
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* signgam back by reference as the second argument; user must
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* allocate space for signgam.
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*/
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extern float gammaf_r __P((float, int *));
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extern float lgammaf_r __P((float, int *));
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#endif /* !... || _REENTRANT */
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__END_DECLS
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#endif /* _MATH_H_ */
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