/*

* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

/**

 @file

 @publishedAll

 @released

*/

#ifndef  _MATH_H

#ifdef __cplusplus

extern "C" {

#endif

#define  _MATH_H

#include <sys/reent.h>

#include <machine/ieeefp.h>

#include "_ansi.h"

void MapSymbianErrorCodeToErrno(int, int);

/**

Reentrant ANSI C functions

*/

IMPORT_C double atan (double) __SOFTFP;

IMPORT_C double cos (double) __SOFTFP;

IMPORT_C double sin (double) __SOFTFP;

IMPORT_C double tan (double) __SOFTFP;

IMPORT_C double tanh (double) __SOFTFP;

IMPORT_C double frexp (double, int *) __SOFTFP;

IMPORT_C double modf (double, double *) __SOFTFP;

IMPORT_C double ceil (double) __SOFTFP;

IMPORT_C double fabs (double) __SOFTFP;

IMPORT_C double floor (double) __SOFTFP;

/**

Non reentrant ANSI C functions.  

*/

#ifndef _REENT_ONLY

IMPORT_C double acos (double) __SOFTFP;

IMPORT_C double asin (double) __SOFTFP;

IMPORT_C double atan2 (double, double) __SOFTFP;

IMPORT_C double cosh (double) __SOFTFP;

IMPORT_C double sinh (double) __SOFTFP;

IMPORT_C double exp (double) __SOFTFP;

IMPORT_C double ldexp (double, int) __SOFTFP;

IMPORT_C double log (double) __SOFTFP;

IMPORT_C double log10 (double) __SOFTFP;

IMPORT_C double pow (double, double) __SOFTFP;

IMPORT_C double sqrt (double) __SOFTFP;

IMPORT_C double fmod (double, double) __SOFTFP;

#endif /* ! defined (_REENT_ONLY) */

/**

Non ANSI functions provided by EPOC32 

*/

IMPORT_C double	copysign(double, double) __SOFTFP;

IMPORT_C double	expm1	(double) __SOFTFP;

IMPORT_C int	finite	(double) __SOFTFP;

IMPORT_C int	isnan	(double) __SOFTFP;

IMPORT_C int	isinf	(double) __SOFTFP;

IMPORT_C double	rint	(double) __SOFTFP;

IMPORT_C double	scalbn	(double, int) __SOFTFP;

/* 

strtod, atof, etc. may return HUGE_VAL 

@internalComponent

*/

#define	HUGE_VAL	1.7976931348623157E+308 /* KMaxTReal from e32math.h */

#ifndef _STRICT_ANSI

/**

Non ANSI double precision functions.  

*/

extern double infinity (void);

extern double nan (void);

extern int ilogb (double);

extern double asinh (double);

extern double cbrt (double);

extern double nextafter (double, double);

extern double log1p (double);

#ifndef _REENT_ONLY

extern double acosh (double);

extern double atanh (double);

extern double remainder (double, double);

extern double gamma (double);

extern double gamma_r (double, int *);

extern double lgamma (double);

extern double lgamma_r (double, int *);

extern double erf (double);

extern double erfc (double);

extern double y0 (double);

extern double y1 (double);

extern double yn (int, double);

extern double j0 (double);

extern double j1 (double);

extern double jn (int, double);

#define log2(x) (log (x) / M_LOG2_E)

extern double hypot (double, double);

extern double cabs();

extern double drem (double, double);

#endif /* ! defined (_REENT_ONLY) */

/**

Single precision versions of ANSI functions.  

*/

extern float atanf (float);

extern float cosf (float);

extern float sinf (float);

extern float tanf (float);

extern float tanhf (float);

extern float frexpf (float, int *);

extern float modff (float, float *);

extern float ceilf (float);

extern float fabsf (float);

extern float floorf (float);

#ifndef _REENT_ONLY

extern float acosf (float);

extern float asinf (float);

extern float atan2f (float, float);

extern float coshf (float);

extern float sinhf (float);

extern float expf (float);

extern float ldexpf (float, int);

extern float logf (float);

extern float log10f (float);

extern float powf (float, float);

extern float sqrtf (float);

extern float fmodf (float, float);

#endif /* ! defined (_REENT_ONLY) */

/**

Other single precision functions.  

*/

extern float infinityf (void);

extern float nanf (void);

extern int isnanf (float);

extern int isinff (float);

extern int finitef (float);

extern float copysignf (float, float);

extern int ilogbf (float);

extern float asinhf (float);

extern float cbrtf (float);

extern float nextafterf (float, float);

extern float rintf (float);

extern float scalbnf (float, int);

extern float log1pf (float);

extern float expm1f (float);

#ifndef _REENT_ONLY

extern float acoshf (float);

extern float atanhf (float);

extern float remainderf (float, float);

extern float gammaf (float);

extern float gammaf_r (float, int *);

extern float lgammaf (float);

extern float lgammaf_r (float, int *);

extern float erff (float);

extern float erfcf (float);

extern float y0f (float);

extern float y1f (float);

extern float ynf (int, float);

extern float j0f (float);

extern float j1f (float);

extern float jnf (int, float);

#define log2f(x) (logf (x) / (float) M_LOG2_E)

extern float hypotf (float, float);

extern float cabsf();

extern float dremf (float, float);

#endif /* ! defined (_REENT_ONLY) */

/**

The gamma functions use a global variable, signgam.

*/

extern int signgam;

/** 

The exception structure passed to the matherr routine.  

*/

struct exception 

{

  int type;

  char *name;

  double arg1;

  double arg2;

  double retval;

  int err;

};

extern int matherr (struct exception *e);

/**

Values for the type field of struct exception.  

*/

#define DOMAIN 1

#define SING 2

#define OVERFLOW 3

#define UNDERFLOW 4

#define TLOSS 5

#define PLOSS 6

/** 

Useful constants.  

*/

#define M_E		2.7182818284590452354

#define M_LOG2E		1.4426950408889634074

#define M_LOG10E	0.43429448190325182765

#define M_LN2		0.69314718055994530942

#define M_LN10		2.30258509299404568402

#define M_PI		3.14159265358979323846

#define M_TWOPI         (M_PI * 2.0)

#define M_PI_2		1.57079632679489661923

#define M_PI_4		0.78539816339744830962

#define M_3PI_4		2.3561944901923448370E0

#define M_SQRTPI        1.77245385090551602792981

#define M_1_PI		0.31830988618379067154

#define M_2_PI		0.63661977236758134308

#define M_2_SQRTPI	1.12837916709551257390

#define M_SQRT2		1.41421356237309504880

#define M_SQRT1_2	0.70710678118654752440

#define M_LN2LO         1.9082149292705877000E-10

#define M_LN2HI         6.9314718036912381649E-1

#define M_SQRT3   	1.73205080756887719000

#define M_IVLN10        0.43429448190325182765 /* 1 / log(10) */

#define M_LOG2_E        0.693147180559945309417

#define M_INVLN2        1.4426950408889633870E0  /* 1 / log(2) */

/**

Global control over fdlibm error handling.  

*/

enum __fdlibm_version

{

  __fdlibm_ieee = -1,

  __fdlibm_svid,

  __fdlibm_xopen,

  __fdlibm_posix

};

#define _LIB_VERSION_TYPE enum __fdlibm_version

#define _LIB_VERSION __fdlib_version

extern _LIB_VERSION_TYPE _LIB_VERSION;

#define _IEEE_  __fdlibm_ieee

#define _SVID_  __fdlibm_svid

#define _XOPEN_ __fdlibm_xopen

#define _POSIX_ __fdlibm_posix

#endif /* ! defined (_STRICT_ANSI) */

#ifdef __cplusplus

}

#endif

#endif /* _MATH_H */