home *** CD-ROM | disk | FTP | other *** search
- // complex standard header
-
- #if _MSC_VER > 1000
- #pragma once
- #endif
-
- #ifndef _COMPLEX_
- #define _COMPLEX_
- #include <ymath.h>
- #include <cmath>
- #include <sstream>
- #include <xutility>
-
- #ifdef _MSC_VER
- #pragma pack(push,8)
- #endif /* _MSC_VER */
- _STD_BEGIN
- #define __STD_COMPLEX
- // TEMPLATE CLASS _Ctr
- template<class _Ty> class _Ctr {
- public:
- static _Ty _Cosh(_Ty _X, _Ty _Y)
- {return (::_Cosh((double)_X, (double)_Y)); }
- static short _Exp(_Ty *_P, _Ty _Y, short _E)
- {double _W = (double)*_P;
- short _Ans = ::_Exp(&_W, (double)_Y, _E);
- *_P = (_Ty)_W;
- return (_Ans); }
- static _Ty _Infv(_Ty)
- {return (_Inf._D); }
- static bool _Isinf(_Ty _X)
- {double _W = (double)_X;
- return (_Dtest(&_W) == _INFCODE); }
- static bool _Isnan(_Ty _X)
- {double _W = (double)_X;
- return (_Dtest(&_W) == _NANCODE); }
- static _Ty _Nanv(_Ty)
- {return (_Nan._D); }
- static _Ty _Sinh(_Ty _X, _Ty _Y)
- {return (::_Sinh((double)_X, (double)_Y)); }
- static _Ty atan2(_Ty _Y, _Ty _X)
- {return (::atan2((double)_Y, (double)_X)); }
- static _Ty cos(_Ty _X)
- {return (::cos((double)_X)); }
- static _Ty exp(_Ty _X)
- {return (::exp((double)_X)); }
- static _Ty ldexp(_Ty _R, int _E)
- {return (::ldexp((double)_R, _E)); }
- static _Ty log(_Ty _X)
- {return (::log((double)_X)); }
- static _Ty pow(_Ty _X, _Ty _Y)
- {return (::pow((double)_X, (double)_Y)); }
- static _Ty sin(_Ty _X)
- {return (::sin((double)_X)); }
- static _Ty sqrt(_Ty _X)
- {return (::sqrt((double)_X)); }
- };
- // CLASS _Ctr<long double>
- class _CRTIMP _Ctr<long double> {
- public:
- typedef long double _Ty;
- static _Ty _Cosh(_Ty _X, _Ty _Y)
- {return (_LCosh(_X, _Y)); }
- static short _Exp(_Ty *_P, _Ty _Y, short _E)
- {return (_LExp(_P, _Y, _E)); }
- static _Ty _Infv(_Ty)
- {return (_LInf._L); }
- static bool _Isinf(_Ty _X)
- {return (_LDtest(&_X) == _INFCODE); }
- static bool _Isnan(_Ty _X)
- {return (_LDtest(&_X) == _NANCODE); }
- static _Ty _Nanv(_Ty)
- {return (_LNan._L); }
- static _Ty _Sinh(_Ty _X, _Ty _Y)
- {return (_LSinh(_X, _Y)); }
- static _Ty atan2(_Ty _Y, _Ty _X)
- {return (atan2l(_Y, _X)); }
- static _Ty cos(_Ty _X)
- {return (cosl(_X)); }
- static _Ty exp(_Ty _X)
- {return (expl(_X)); }
- static _Ty ldexp(_Ty _R, int _E)
- {return (ldexpl(_R, _E)); }
- static _Ty log(_Ty _X)
- {return (logl(_X)); }
- static _Ty pow(_Ty _X, _Ty _Y)
- {return (powl(_X, _Y)); }
- static _Ty sin(_Ty _X)
- {return (sinl(_X)); }
- static _Ty sqrt(_Ty _X)
- {return (sqrtl(_X)); }
- };
- // CLASS _Ctr<double>
- class _CRTIMP _Ctr<double> {
- public:
- typedef double _Ty;
- static _Ty _Cosh(_Ty _X, _Ty _Y)
- {return (::_Cosh(_X, _Y)); }
- static short _Exp(_Ty *_P, _Ty _Y, short _E)
- {return (::_Exp(_P, _Y, _E)); }
- static _Ty _Infv(_Ty)
- {return (_Inf._D); }
- static bool _Isinf(_Ty _X)
- {return (_Dtest(&_X) == _INFCODE); }
- static bool _Isnan(_Ty _X)
- {return (_Dtest(&_X) == _NANCODE); }
- static _Ty _Nanv(_Ty)
- {return (_Nan._D); }
- static _Ty _Sinh(_Ty _X, _Ty _Y)
- {return (::_Sinh(_X, _Y)); }
- static _Ty atan2(_Ty _Y, _Ty _X)
- {return (::atan2(_Y, _X)); }
- static _Ty cos(_Ty _X)
- {return (::cos(_X)); }
- static _Ty exp(_Ty _X)
- {return (::exp(_X)); }
- static _Ty ldexp(_Ty _R, int _E)
- {return (::ldexp(_R, _E)); }
- static _Ty log(_Ty _X)
- {return (::log(_X)); }
- static _Ty pow(_Ty _X, _Ty _Y)
- {return (::pow(_X, _Y)); }
- static _Ty sin(_Ty _X)
- {return (::sin(_X)); }
- static _Ty sqrt(_Ty _X)
- {return (::sqrt(_X)); }
- };
- class _CRTIMP _Ctr<float> {
- public:
- typedef float _Ty;
- static _Ty _Cosh(_Ty _X, _Ty _Y)
- {return (_FCosh(_X, _Y)); }
- static short _Exp(_Ty *_P, _Ty _Y, short _E)
- {return (_FExp(_P, _Y, _E)); }
- static _Ty _Infv(_Ty)
- {return (_FInf._F); }
- static bool _Isinf(_Ty _X)
- {return (_FDtest(&_X) == _INFCODE); }
- static bool _Isnan(_Ty _X)
- {return (_FDtest(&_X) == _NANCODE); }
- static _Ty _Nanv(_Ty)
- {return (_FNan._F); }
- static _Ty _Sinh(_Ty _X, _Ty _Y)
- {return (_FSinh(_X, _Y)); }
- static _Ty atan2(_Ty _Y, _Ty _X)
- {return (atan2f(_Y, _X)); }
- static _Ty cos(_Ty _X)
- {return (cosf(_X)); }
- static _Ty exp(_Ty _X)
- {return (expf(_X)); }
- static _Ty ldexp(_Ty _R, int _E)
- {return (ldexpf(_R, _E)); }
- static _Ty log(_Ty _X)
- {return (logf(_X)); }
- static _Ty pow(_Ty _X, _Ty _Y)
- {return (powf(_X, _Y)); }
- static _Ty sin(_Ty _X)
- {return (sinf(_X)); }
- static _Ty sqrt(_Ty _X)
- {return (sqrtf(_X)); }
- };
- // TEMPLATE CLASS _Complex_base
- template<class _Ty> class complex;
- class _CRTIMP complex<float>;
- class _CRTIMP complex<double>;
- class _CRTIMP complex<long double>;
- template<class _Ty>
- class _Complex_base {
- public:
- typedef _Complex_base<_Ty> _Myt;
- typedef _Ctr<_Ty> _Myctr;
- typedef _Ty value_type;
- _Complex_base(const _Ty& _R, const _Ty& _I)
- : _Re(_R), _Im(_I) {}
- _Myt& operator+=(const _Ty& _X)
- {_Re = _Re + _X;
- return (*this); }
- _Myt& operator-=(const _Ty& _X)
- {_Re = _Re - _X;
- return (*this); }
- _Myt& operator*=(const _Ty& _X)
- {_Re = _Re * _X;
- _Im = _Im * _X;
- return (*this); }
- _Myt& operator/=(const _Ty& _X)
- {_Re = _Re / _X;
- _Im = _Im / _X;
- return (*this); }
- _Ty real(const _Ty& _X)
- {return (_Re = _X); }
- _Ty imag(const _Ty& _X)
- {return (_Im = _X); }
- _Ty real() const
- {return (_Re); }
- _Ty imag() const
- {return (_Im); }
- protected:
- _Ty _Re, _Im;
- };
-
-
- // CLASS complex<float>
- class _CRTIMP complex<float> : public _Complex_base<float> {
- public:
- typedef float _Ty;
- explicit complex(const complex<double>&);
- explicit complex(const complex<long double>&);
- complex(const _Ty& _R = 0, const _Ty& _I = 0)
- : _Complex_base<_Ty>(_R, _I) {}
- complex<_Ty>& operator=(const _Ty& _X)
- {_Re = _X;
- _Im = 0;
- return (*this); }
- };
- // CLASS complex<double>
- class _CRTIMP complex<double> : public _Complex_base<double> {
- public:
- typedef double _Ty;
- complex(const complex<float>&);
- explicit complex(const complex<long double>&);
- complex(const _Ty& _R = 0, const _Ty& _I = 0)
- : _Complex_base<_Ty>(_R, _I) {}
- complex<_Ty>& operator=(const _Ty& _X)
- {_Re = _X;
- _Im = 0;
- return (*this); }
- };
- // CLASS complex<long double>
- class _CRTIMP complex<long double> : public _Complex_base<long double> {
- public:
- typedef long double _Ty;
- complex(const complex<float>&);
- complex(const complex<double>&);
- complex(const _Ty& _R = 0, const _Ty& _I = 0)
- : _Complex_base<_Ty>(_R, _I) {}
- complex<_Ty>& operator=(const _Ty& _X)
- {_Re = _X;
- _Im = 0;
- return (*this); }
- };
- // CONSTRUCTORS FOR complex SPECIALIZATIONS
- inline complex<float>::complex(const complex<double>& _X)
- : _Complex_base<float>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- inline complex<float>::complex(const complex<long double>& _X)
- : _Complex_base<float>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- inline complex<double>::complex(const complex<float>& _X)
- : _Complex_base<double>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- inline complex<double>::complex(const complex<long double>& _X)
- : _Complex_base<double>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- inline complex<long double>::complex(const complex<float>& _X)
- : _Complex_base<long double>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- inline complex<long double>::complex(const complex<double>& _X)
- : _Complex_base<long double>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- // TEMPLATE CLASS complex
- template<class _Ty>
- class complex : public _Complex_base<_Ty> {
- public:
- complex(const _Ty& _R = 0, const _Ty& _I = 0)
- : _Complex_base<_Ty>(_R, _I) {}
- typedef _Ty _U;
- complex(const complex<_U>& _X)
- : _Complex_base<_Ty>((_Ty)_X.real(), (_Ty)_X.imag()) {}
- complex<_Ty>& operator=(const complex<_U>& _X)
- {_Re = (_Ty)_X.real();
- _Im = (_Ty)_X.imag();
- return (*this); }
- };
- // TEMPLATE complex OPERATORS
- template<class _Ty, class _U> inline
- complex<_Ty>& __cdecl operator+=(
- complex<_Ty>& _X,
- const complex<_U>& _Y)
- {_X.real(_X.real() + (_Ty)_Y.real());
- _X.imag(_X.imag() + (_Ty)_Y.imag());
- return (_X); }
- template<class _Ty, class _U> inline
- complex<_Ty>& __cdecl operator-=(
- complex<_Ty>& _X,
- const complex<_U>& _Y)
- {_X.real(_X.real() - (_Ty)_Y.real());
- _X.imag(_X.imag() - (_Ty)_Y.imag());
- return (_X); }
- template<class _Ty, class _U> inline
- complex<_Ty>& __cdecl operator*=(
- complex<_Ty>& _X,
- const complex<_U>& _Y)
- {_Ty _Yre = (_Ty)_Y.real();
- _Ty _Yim = (_Ty)_Y.imag();
- _Ty _W = _X.real() * _Yre - _X.imag() * _Yim;
- _X.imag(_X.real() * _Yim + _X.imag() * _Yre);
- _X.real(_W);
- return (_X); }
- template<class _Ty, class _U> inline
- complex<_Ty>& __cdecl operator/=(
- complex<_Ty>& _X,
- const complex<_U>& _Y)
- {typedef _Ctr<_Ty> _Myctr;
- _Ty _Yre = (_Ty)_Y.real();
- _Ty _Yim = (_Ty)_Y.imag();
- if (_Myctr::_Isnan(_Yre) || _Myctr::_Isnan(_Yim))
- _X.real(_Myctr::_Nanv(_Yre)), _X.imag(_X.real());
- else if ((_Yim < 0 ? -_Yim : +_Yim)
- < (_Yre < 0 ? -_Yre : +_Yre))
- {_Ty _Wr = _Yim / _Yre;
- _Ty _Wd = _Yre + _Wr * _Yim;
- if (_Myctr::_Isnan(_Wd) || _Wd == 0)
- _X.real(_Myctr::_Nanv(_Yre)), _X.imag(_X.real());
- else
- {_Ty _W = (_X.real() + _X.imag() * _Wr) / _Wd;
- _X.imag((_X.imag() - _X.real() * _Wr) / _Wd);
- _X.real(_W); }}
- else if (_Yim == 0)
- _X.real(_Myctr::_Nanv(_Yre)), _X.imag(_X.real());
- else
- {_Ty _Wr = _Yre / _Yim;
- _Ty _Wd = _Yim + _Wr * _Yre;
- if (_Myctr::_Isnan(_Wd) || _Wd == 0)
- _X.real(_Myctr::_Nanv(_Yre)), _X.imag(_X.real());
- else
- {_Ty _W = (_X.real() * _Wr + _X.imag()) / _Wd;
- _X.imag((_X.imag() * _Wr - _X.real()) / _Wd);
- _X.real(_W); }}
- return (_X); }
- // TEMPLATE FUNCTION operator>>
- template<class _E, class _Tr, class _U> inline
- basic_istream<_E, _Tr>& __cdecl operator>>(
- basic_istream<_E, _Tr>& _I, complex<_U>& _X)
- {typedef complex<_U> _Myt;
- _E _Ch;
- long double _Re, _Im;
- if (_I >> _Ch && _Ch != '(')
- _I.putback(_Ch), _I >> _Re, _Im = 0;
- else if (_I >> _Re >> _Ch && _Ch != ',')
- if (_Ch == ')')
- _Im = 0;
- else
- _I.putback(_Ch), _I.setstate(ios_base::failbit);
- else if (_I >> _Im >> _Ch && _Ch != ')')
- _I.putback(_Ch), _I.setstate(ios_base::failbit);
- if (!_I.fail())
- _X = _Myt((_U)_Re, (_U)_Im);
- return (_I); }
- // TEMPLATE FUNCTION operator<<
- template<class _E, class _Tr, class _U> inline
- basic_ostream<_E, _Tr>& __cdecl operator<<(
- basic_ostream<_E, _Tr>& _O, const complex<_U>& _X)
- {basic_ostringstream<_E, _Tr, allocator<_E> > _S;
- _S.flags(_O.flags());
- _S.imbue(_O.getloc());
- _S.precision(_O.precision());
- _S << '(' << real(_X) << ',' << imag(_X) << ')';
- return (_O << _S.str().c_str()); }
- #define _CMPLX(T) complex<T >
- #define _CTR(T) _Ctr<T >
- #define _TMPLT(T) template<class T >
- #include <xcomplex>
- _STD_END
- #ifdef _MSC_VER
- #pragma pack(pop)
- #endif /* _MSC_VER */
-
- #endif /* _COMPLEX_ */
-
- /*
- * Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED.
- * Consult your license regarding permissions and restrictions.
- */
-