294 lines
8.3 KiB
C
294 lines
8.3 KiB
C
/* $NetBSD: math.h,v 1.15 1998/09/07 15:00:05 kleink Exp $ */
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* @(#)fdlibm.h 5.1 93/09/24
|
|
*/
|
|
|
|
#ifndef _MATH_H_
|
|
#define _MATH_H_
|
|
|
|
#include <sys/featuretest.h>
|
|
|
|
/*
|
|
* ANSI/POSIX
|
|
*/
|
|
extern const char __infinity[];
|
|
#define HUGE_VAL (*(const double *)__infinity)
|
|
|
|
/*
|
|
* XOPEN/SVID
|
|
*/
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
|
|
defined(_XOPEN_SOURCE)
|
|
#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) */
|
|
|
|
#define MAXFLOAT ((float)3.40282346638528860e+38)
|
|
extern int signgam;
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE || _XOPEN_SOURCE */
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
|
!defined(_XOPEN_SOURCE)
|
|
enum fdversion {fdlibm_ieee = -1, fdlibm_svid, fdlibm_xopen, fdlibm_posix};
|
|
|
|
#define _LIB_VERSION_TYPE enum fdversion
|
|
#define _LIB_VERSION _fdlib_version
|
|
|
|
/* if global variable _LIB_VERSION is not desirable, one may
|
|
* change the following to be a constant by:
|
|
* #define _LIB_VERSION_TYPE const enum version
|
|
* In that case, after one initializes the value _LIB_VERSION (see
|
|
* s_lib_version.c) during compile time, it cannot be modified
|
|
* in the middle of a program
|
|
*/
|
|
extern _LIB_VERSION_TYPE _LIB_VERSION;
|
|
|
|
#define _IEEE_ fdlibm_ieee
|
|
#define _SVID_ fdlibm_svid
|
|
#define _XOPEN_ fdlibm_xopen
|
|
#define _POSIX_ fdlibm_posix
|
|
|
|
#ifndef __cplusplus
|
|
struct exception {
|
|
int type;
|
|
char *name;
|
|
double arg1;
|
|
double arg2;
|
|
double retval;
|
|
};
|
|
#endif
|
|
|
|
#define HUGE MAXFLOAT
|
|
|
|
/*
|
|
* set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
|
|
* (one may replace the following line by "#include <values.h>")
|
|
*/
|
|
|
|
#define X_TLOSS 1.41484755040568800000e+16
|
|
|
|
#define DOMAIN 1
|
|
#define SING 2
|
|
#define OVERFLOW 3
|
|
#define UNDERFLOW 4
|
|
#define TLOSS 5
|
|
#define PLOSS 6
|
|
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
__BEGIN_DECLS
|
|
/*
|
|
* ANSI/POSIX
|
|
*/
|
|
extern double acos __P((double));
|
|
extern double asin __P((double));
|
|
extern double atan __P((double));
|
|
extern double atan2 __P((double, double));
|
|
extern double cos __P((double));
|
|
extern double sin __P((double));
|
|
extern double tan __P((double));
|
|
|
|
extern double cosh __P((double));
|
|
extern double sinh __P((double));
|
|
extern double tanh __P((double));
|
|
|
|
extern double exp __P((double));
|
|
extern double frexp __P((double, int *));
|
|
extern double ldexp __P((double, int));
|
|
extern double log __P((double));
|
|
extern double log10 __P((double));
|
|
extern double modf __P((double, double *));
|
|
|
|
extern double pow __P((double, double));
|
|
extern double sqrt __P((double));
|
|
|
|
extern double ceil __P((double));
|
|
extern double fabs __P((double));
|
|
extern double floor __P((double));
|
|
extern double fmod __P((double, double));
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
|
|
defined(_XOPEN_SOURCE)
|
|
extern double erf __P((double));
|
|
extern double erfc __P((double));
|
|
extern double gamma __P((double));
|
|
extern double hypot __P((double, double));
|
|
extern int isnan __P((double));
|
|
extern int finite __P((double));
|
|
extern double j0 __P((double));
|
|
extern double j1 __P((double));
|
|
extern double jn __P((int, double));
|
|
extern double lgamma __P((double));
|
|
extern double y0 __P((double));
|
|
extern double y1 __P((double));
|
|
extern double yn __P((int, double));
|
|
|
|
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
|
|
extern double acosh __P((double));
|
|
extern double asinh __P((double));
|
|
extern double atanh __P((double));
|
|
extern double cbrt __P((double));
|
|
extern double expm1 __P((double));
|
|
extern int ilogb __P((double));
|
|
extern double log1p __P((double));
|
|
extern double logb __P((double));
|
|
extern double nextafter __P((double, double));
|
|
extern double remainder __P((double, double));
|
|
extern double rint __P((double));
|
|
extern double scalb __P((double, double));
|
|
#endif /* !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500 */
|
|
#endif /* !_ANSI_SOURCE) && !_POSIX_C_SOURCE || _XOPEN_SOURCE */
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
|
!defined(_XOPEN_SOURCE)
|
|
#ifndef __cplusplus
|
|
extern int matherr __P((struct exception *));
|
|
#endif
|
|
|
|
/*
|
|
* IEEE Test Vector
|
|
*/
|
|
extern double significand __P((double));
|
|
|
|
/*
|
|
* Functions callable from C, intended to support IEEE arithmetic.
|
|
*/
|
|
extern double copysign __P((double, double));
|
|
extern double scalbn __P((double, int));
|
|
|
|
/*
|
|
* BSD math library entry points
|
|
*/
|
|
extern double cabs();
|
|
extern double drem __P((double, double));
|
|
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
|
!defined(_XOPEN_SOURCE) || defined(_REENTRANT)
|
|
/*
|
|
* Reentrant version of gamma & lgamma; passes signgam back by reference
|
|
* as the second argument; user must allocate space for signgam.
|
|
*/
|
|
extern double gamma_r __P((double, int *));
|
|
extern double lgamma_r __P((double, int *));
|
|
#endif /* !... || _REENTRANT */
|
|
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
|
!defined(_XOPEN_SOURCE)
|
|
extern int isinf __P((double));
|
|
|
|
/* float versions of ANSI/POSIX functions */
|
|
extern float acosf __P((float));
|
|
extern float asinf __P((float));
|
|
extern float atanf __P((float));
|
|
extern float atan2f __P((float, float));
|
|
extern float cosf __P((float));
|
|
extern float sinf __P((float));
|
|
extern float tanf __P((float));
|
|
|
|
extern float coshf __P((float));
|
|
extern float sinhf __P((float));
|
|
extern float tanhf __P((float));
|
|
|
|
extern float expf __P((float));
|
|
extern float frexpf __P((float, int *));
|
|
extern float ldexpf __P((float, int));
|
|
extern float logf __P((float));
|
|
extern float log10f __P((float));
|
|
extern float modff __P((float, float *));
|
|
|
|
extern float powf __P((float, float));
|
|
extern float sqrtf __P((float));
|
|
|
|
extern float ceilf __P((float));
|
|
extern float fabsf __P((float));
|
|
extern float floorf __P((float));
|
|
extern float fmodf __P((float, float));
|
|
|
|
extern float erff __P((float));
|
|
extern float erfcf __P((float));
|
|
extern float gammaf __P((float));
|
|
extern float hypotf __P((float, float));
|
|
extern int isnanf __P((float));
|
|
extern int finitef __P((float));
|
|
extern float j0f __P((float));
|
|
extern float j1f __P((float));
|
|
extern float jnf __P((int, float));
|
|
extern float lgammaf __P((float));
|
|
extern float y0f __P((float));
|
|
extern float y1f __P((float));
|
|
extern float ynf __P((int, float));
|
|
|
|
extern float acoshf __P((float));
|
|
extern float asinhf __P((float));
|
|
extern float atanhf __P((float));
|
|
extern float cbrtf __P((float));
|
|
extern float logbf __P((float));
|
|
extern float nextafterf __P((float, float));
|
|
extern float remainderf __P((float, float));
|
|
extern float scalbf __P((float, float));
|
|
|
|
/*
|
|
* float version of IEEE Test Vector
|
|
*/
|
|
extern float significandf __P((float));
|
|
|
|
/*
|
|
* Float versions of functions callable from C, intended to support
|
|
* IEEE arithmetic.
|
|
*/
|
|
extern float copysignf __P((float, float));
|
|
extern int ilogbf __P((float));
|
|
extern float rintf __P((float));
|
|
extern float scalbnf __P((float, int));
|
|
|
|
/*
|
|
* float versions of BSD math library entry points
|
|
*/
|
|
extern float cabsf ();
|
|
extern float dremf __P((float, float));
|
|
extern float expm1f __P((float));
|
|
extern float log1pf __P((float));
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
|
|
!defined(_XOPEN_SOURCE) || defined(_REENTRANT)
|
|
/*
|
|
* Float versions of reentrant version of gamma & lgamma; passes
|
|
* signgam back by reference as the second argument; user must
|
|
* allocate space for signgam.
|
|
*/
|
|
extern float gammaf_r __P((float, int *));
|
|
extern float lgammaf_r __P((float, int *));
|
|
#endif /* !... || _REENTRANT */
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _MATH_H_ */
|