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/*

 * ====================================================

 * 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.

 * ====================================================

 */

/*

 * from: @(#)fdlibm.h 5.1 93/09/24

 * $\Id: math.h,v 1.2 1995/05/30 05:49:16 rgrimes Exp $

 */

#ifndef _MATH_H_

#define _MATH_H_

/*

 * ANSI/POSIX

 */

extern char __infinity[];

#define HUGE_VAL        (*(double *) __infinity)

/*

 * XOPEN/SVID

 */

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_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;

#if !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

struct exception {

        int type;

        char *name;

        double arg1;

        double arg2;

        double retval;

};

#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 /* !_XOPEN_SOURCE */

#endif /* !_ANSI_SOURCE && !_POSIX_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_SOURCE)

extern double erf __P((double));

extern double erfc __P((double));

extern double gamma __P((double));

extern double hypot __P((double, double));

extern int isinf __P((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)

extern double acosh __P((double));

extern double asinh __P((double));

extern double atanh __P((double));

extern double cbrt __P((double));

extern double logb __P((double));

extern double nextafter __P((double, double));

extern double remainder __P((double, double));

extern double scalb __P((double, double));

extern int matherr __P((struct exception *));

/*

 * IEEE Test Vector

 */

extern double significand __P((double));

/*

 * Functions callable from C, intended to support IEEE arithmetic.

 */

extern double copysign __P((double, double));

extern int ilogb __P((double));

extern double rint __P((double));

extern double scalbn __P((double, int));

/*

 * BSD math library entry points

 */

extern double cabs();

extern double drem __P((double, double));

extern double expm1 __P((double));

extern double log1p __P((double));

/*

 * Reentrant version of gamma & lgamma; passes signgam back by reference

 * as the second argument; user must allocate space for signgam.

 */

#ifdef _REENTRANT

extern double gamma_r __P((double, int *));

extern double lgamma_r __P((double, int *));

#endif /* _REENTRANT */

/* 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));

/*

 * Float versions of reentrant version of gamma & lgamma; passes

 * signgam back by reference as the second argument; user must

 * allocate space for signgam.

 */

#ifdef _REENTRANT

extern float gammaf_r __P((float, int *));

extern float lgammaf_r __P((float, int *));

#endif  /* _REENTRANT */

#endif /* !_XOPEN_SOURCE */

#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */

__END_DECLS

#endif /* _MATH_H_ */