/* @(#)fdlibm.h 1.5 04/04/22 */

/*

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

 * Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved.

 *

 * Permission to use, copy, modify, and distribute this

 * software is freely granted, provided that this notice 

 * is preserved.

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

 */

/* Sometimes it's necessary to define __LITTLE_ENDIAN explicitly

   but these catch some common cases. */

#include "jfdlibm.h"

#if defined(i386) || defined(i486) || \

	defined(intel) || defined(x86) || defined(i86pc) || \

	defined(__alpha) || defined(__osf__)

#define __LITTLE_ENDIAN

#endif

#ifdef __LITTLE_ENDIAN

#define __HI(x) *(1+(int*)&x)

#define __LO(x) *(int*)&x

#define __HIp(x) *(1+(int*)x)

#define __LOp(x) *(int*)x

#else

#define __HI(x) *(int*)&x

#define __LO(x) *(1+(int*)&x)

#define __HIp(x) *(int*)x

#define __LOp(x) *(1+(int*)x)

#endif

#ifdef __STDC__

#define	__P(p)	p

#else

#define	__P(p)	()

#endif

/*

 * ANSI/POSIX

 */

extern int signgam;

#define	MAXFLOAT	((float)3.40282346638528860e+38)

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

/*

 * 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));

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));

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));

#ifdef _SCALB_INT

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

#else

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

#endif

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 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 */

/* ieee style elementary functions */

extern double __ieee754_sqrt __P((double));			

extern double __ieee754_acos __P((double));			

extern double __ieee754_acosh __P((double));			

extern double __ieee754_log __P((double));			

extern double __ieee754_atanh __P((double));			

extern double __ieee754_asin __P((double));			

extern double __ieee754_atan2 __P((double,double));			

extern double __ieee754_exp __P((double));

extern double __ieee754_cosh __P((double));

extern double __ieee754_fmod __P((double,double));

extern double __ieee754_pow __P((double,double));

extern double __ieee754_lgamma_r __P((double,int *));

extern double __ieee754_gamma_r __P((double,int *));

extern double __ieee754_lgamma __P((double));

extern double __ieee754_gamma __P((double));

extern double __ieee754_log10 __P((double));

extern double __ieee754_sinh __P((double));

extern double __ieee754_hypot __P((double,double));

extern double __ieee754_j0 __P((double));

extern double __ieee754_j1 __P((double));

extern double __ieee754_y0 __P((double));

extern double __ieee754_y1 __P((double));

extern double __ieee754_jn __P((int,double));

extern double __ieee754_yn __P((int,double));

extern double __ieee754_remainder __P((double,double));

extern int    __ieee754_rem_pio2 __P((double,double*));

#ifdef _SCALB_INT

extern double __ieee754_scalb __P((double,int));

#else

extern double __ieee754_scalb __P((double,double));

#endif

/* fdlibm kernel function */

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

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

extern double __kernel_cos __P((double,double));

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

extern int    __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*));