/*

 * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.

 * Copyright (c) 1999

 * Silicon Graphics Computer Systems, Inc.

 *

 * Copyright (c) 1999 

 * Boris Fomitchev

 *

 * This material is provided "as is", with absolutely no warranty expressed

 * or implied. Any use is at your own risk.

 *

 * Permission to use or copy this software for any purpose is hereby granted 

 * without fee, provided the above notices are retained on all copies.

 * Permission to modify the code and to distribute modified code is granted,

 * provided the above notices are retained, and a notice that the code was

 * modified is included with the above copyright notice.

 *

 */ 

# include "stlport_prefix.h"

// exp, log, pow for complex<float>, complex<double>, and complex<long double>

#include <numeric>

#include "complex_impl.h"

#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)

#include "libstdcppwsd.h"

# endif

_STLP_BEGIN_NAMESPACE

//----------------------------------------------------------------------

// exp

_STLP_EXP_DECLSPEC complex<float>  _STLP_CALL

exp(const complex<float>& z)

{

  float expx = _STLP_EXPF(z._M_re);

  return complex<float>(expx * _STLP_COSF(z._M_im),

                        expx * _STLP_SINF(z._M_im));

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL exp(const complex<double>& z)

{

  double expx = _STLP_EXP(z._M_re);

  return complex<double>(expx * _STLP_COS(z._M_im),

                         expx * _STLP_SIN(z._M_im));

}

# ifndef _STLP_NO_LONG_DOUBLE

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL exp(const complex<long double>& z)

{

  long double expx = _STLP_EXPL(z._M_re);

  return complex<long double>(expx * _STLP_COSL(z._M_im),

                              expx * _STLP_SINL(z._M_im));

}

# endif

//----------------------------------------------------------------------

// log10

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL log10(const complex<float>& z)

{

  complex<float> r;

#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)

  get_complex_exp_float_ln10_inv() = 1.f / _STLP_LOGF(10.f);  

  r._M_im = _STLP_ATAN2F(z._M_im, z._M_re) * get_complex_exp_float_ln10_inv();  	

# else

  static float ln10_inv = 1.f / _STLP_LOGF(10.f);

  r._M_im = _STLP_ATAN2F(z._M_im, z._M_re) * ln10_inv;  

# endif //__LIBSTD_CPP_SYMBIAN32_WSD__

  r._M_re = _STLP_LOG10F(_STLP_HYPOTF(z._M_re, z._M_im));

  return r;

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL log10(const complex<double>& z)

{

  complex<double> r;

#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)

	get_complex_exp_double_ln10_inv() = 1. / _STLP_LOG(10.);

	r._M_im = _STLP_ATAN2(z._M_im, z._M_re) * get_complex_exp_double_ln10_inv();

# else

	static double ln10_inv = 1. / _STLP_LOG(10.);

	r._M_im = _STLP_ATAN2(z._M_im, z._M_re) * ln10_inv;

# endif //__LIBSTD_CPP_SYMBIAN32_WSD__

  r._M_re = _STLP_LOG10(_STLP_HYPOT(z._M_re, z._M_im));

  return r;

}

#ifndef _STLP_NO_LONG_DOUBLE

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL log10(const complex<long double>& z)

{

  complex<long double> result;

#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)

  get_complex_exp_long_double_ln10_inv() = 1.l / _STLP_LOGL(10.l);

  result._M_im = _STLP_ATAN2L(z._M_im, z._M_re) * get_complex_exp_long_double_ln10_inv();

# else

  static long double ln10_inv = 1.l / _STLP_LOGL(10.l);

  result._M_im = _STLP_ATAN2L(z._M_im, z._M_re) * ln10_inv;

# endif //__LIBSTD_CPP_SYMBIAN32_WSD__

    result._M_re = _STLP_LOG10L(_STLP_HYPOTL(z._M_re, z._M_im));

  return result;

}

# endif

//----------------------------------------------------------------------

// log

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL log(const complex<float>& z)

{

  complex<float> r;

  r._M_im = _STLP_ATAN2F(z._M_im, z._M_re);

  r._M_re = _STLP_LOGF(_STLP_HYPOTF(z._M_re, z._M_im));

  return r;

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL log(const complex<double>& z)

{

  complex<double> r;

  r._M_im = _STLP_ATAN2(z._M_im, z._M_re);

  r._M_re = _STLP_LOG(_STLP_HYPOT(z._M_re, z._M_im));

  return r;

}

#ifndef _STLP_NO_LONG_DOUBLE

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL log(const complex<long double>& z)

{

  complex<long double> result;

  result._M_im = _STLP_ATAN2L(z._M_im, z._M_re);

  result._M_re = _STLP_LOGL(_STLP_HYPOTL(z._M_re, z._M_im));

  return result;

}

# endif

//----------------------------------------------------------------------

// pow

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL pow(const float& a, const complex<float>& b) {

  float logr = _STLP_LOGF(a);

  float x = _STLP_EXPF(logr*b._M_re);

  float y = logr*b._M_im;

  return complex<float>(x * _STLP_COSF(y), x * _STLP_SINF(y));

}

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL pow(const complex<float>& z_in, int n) {

  complex<float> z = z_in;

  z = __power(z, (n < 0 ? -n : n), multiplies< complex<float> >());

  if (n < 0)

    return 1.f / z;

  else

    return z;

}

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL pow(const complex<float>& a, const float& b) {

  float logr = _STLP_LOGF(_STLP_HYPOTF(a._M_re,a._M_im));

  float logi = _STLP_ATAN2F(a._M_im, a._M_re);

  float x = _STLP_EXPF(logr * b);

  float y = logi * b;

  return complex<float>(x * _STLP_COSF(y), x * _STLP_SINF(y));

}  

_STLP_EXP_DECLSPEC complex<float> _STLP_CALL pow(const complex<float>& a, const complex<float>& b) {

  float logr = _STLP_LOGF(_STLP_HYPOTF(a._M_re,a._M_im));

  float logi = _STLP_ATAN2F(a._M_im, a._M_re);

  float x = _STLP_EXPF(logr*b._M_re - logi*b._M_im);

  float y = logr*b._M_im + logi*b._M_re;

  return complex<float>(x * _STLP_COSF(y), x * _STLP_SINF(y));

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL pow(const double& a, const complex<double>& b) {

  double logr = _STLP_LOG(a);

  double x = _STLP_EXP(logr*b._M_re);

  double y = logr*b._M_im;

  return complex<double>(x * _STLP_COS(y), x * _STLP_SIN(y));

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL pow(const complex<double>& z_in, int n) {

  complex<double> z = z_in;

  z = __power(z, (n < 0 ? -n : n), multiplies< complex<double> >());

  if (n < 0)

#if !defined(__SC__)			//*TY 04/15/2000 - 

    return 1. / z;

#else							//*TY 04/15/2000 - added workaround for SCpp compiler

	return double(1.0) / z;		//*TY 04/15/2000 - it incorrectly assign long double attribute to floating point literals

#endif							//*TY 04/15/2000 - 

  else

    return z;

}

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL pow(const complex<double>& a, const double& b) {

  double logr = _STLP_LOG(_STLP_HYPOT(a._M_re,a._M_im));

  double logi = _STLP_ATAN2(a._M_im, a._M_re);

  double x = _STLP_EXP(logr * b);

  double y = logi * b;

  return complex<double>(x * _STLP_COS(y), x * _STLP_SIN(y));

}  

_STLP_EXP_DECLSPEC complex<double> _STLP_CALL pow(const complex<double>& a, const complex<double>& b) {

  double logr = _STLP_LOG(_STLP_HYPOT(a._M_re,a._M_im));

  double logi = _STLP_ATAN2(a._M_im, a._M_re);

  double x = _STLP_EXP(logr*b._M_re - logi*b._M_im);

  double y = logr*b._M_im + logi*b._M_re;

  return complex<double>(x * _STLP_COS(y), x * _STLP_SIN(y));

}

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL pow(const long double& a,

                                                   const complex<long double>& b) {

  long double logr = _STLP_LOGL(a);

  long double x = _STLP_EXPL(logr*b._M_re);

  long double y = logr*b._M_im;

  return complex<long double>(x * _STLP_COSL(y), x * _STLP_SINL(y));

}

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL pow(const complex<long double>& z_in, int n) {

  complex<long double> z = z_in;

  z = __power(z, (n < 0 ? -n : n), multiplies< complex<long double> >());

  if (n < 0)

    return 1.l / z;

  else

    return z;

}

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL pow(const complex<long double>& a,

                         const long double& b) {

  long double logr = _STLP_LOGL(_STLP_HYPOTL(a._M_re,a._M_im));

  long double logi = _STLP_ATAN2L(a._M_im, a._M_re);

  long double x = _STLP_EXPL(logr * b);

  long double y = logi * b;

  return complex<long double>(x * _STLP_COSL(y), x * _STLP_SINL(y));

}  

_STLP_EXP_DECLSPEC complex<long double> _STLP_CALL pow(const complex<long double>& a,

                         const complex<long double>& b) {

  long double logr = _STLP_LOGL(_STLP_HYPOTL(a._M_re,a._M_im));

  long double logi = _STLP_ATAN2L(a._M_im, a._M_re);

  long double x = _STLP_EXPL(logr*b._M_re - logi*b._M_im);

  long double y = logr*b._M_im + logi*b._M_re;

  return complex<long double>(x * _STLP_COSL(y), x * _STLP_SINL(y));

}

_STLP_END_NAMESPACE