// iosfwd standard header
#ifndef _IOSFWD_
#define _IOSFWD_
#include <use_ansi.h>
#include <cstdio>
#include <cstring>
#include <cwchar>
#include <xstddef>

#ifdef  _MSC_VER
/*
 * Currently, all MS C compilers for Win32 platforms default to 8 byte
 * alignment.
 */
#pragma pack(push,8)
#endif  /* _MSC_VER */

		// STREAM POSITIONING TYPES (from <streambuf>)
typedef long streamoff;
const streamoff _BADOFF = -1;
typedef int streamsize;
class streampos {
public:
	streampos(streamoff _O = 0, fpos_t _F = _Fpz,
		mbstate_t _S = _Stz)
		: _Off(_O), _Fpos(_F), _State(_S) {}
	streamoff operator-(const streampos& _R) const
		{return ((streamoff)*this - (streamoff)_R); }
	streampos& operator+=(streamoff _O)
		{_Off += _O;
		return (*this); }
	streampos& operator-=(streamoff _O)
		{_Off -= _O;
		return (*this); }
	streampos operator+(streamoff _O) const
		{streampos _Tmp = *this;
		return (_Tmp += _O); }
	streampos operator-(streamoff _O) const
		{streampos _Tmp = *this;
		return (_Tmp -= _O); }
	bool operator==(const streampos& _R) const
		{return ((streamoff)*this == (streamoff)_R); }
	bool operator!=(const streampos& _R) const
		{return (!(*this == _R)); }
	operator streamoff() const
		{return (_Off + _FPOSOFF(_Fpos)); }
	operator fpos_t() const
		{return (_Fpos); }
	operator mbstate_t() const
		{return (_State); }
	static const fpos_t _Fpz;
	static const mbstate_t _Stz;
private:
	streamoff _Off;
	fpos_t _Fpos;
	mbstate_t _State;
	};
typedef streampos wstreampos;
		// TEMPLATE STRUCT char_traits (FROM <string>)
template<class _E>
	struct char_traits {
	typedef _E char_type;
	typedef _E int_type;
	typedef streampos pos_type;
	typedef streamoff off_type;
	typedef mbstate_t state_type;
	static void assign(_E& _X, const _E& _Y)
		{_X = _Y; }
	static bool eq(const _E& _X, const _E& _Y)
		{return (_X == _Y); }
	static bool lt(const _E& _X, const _E& _Y)
		{return (_X < _Y); }
	static int compare(const _E *_U, const _E *_V, size_t _N)
		{for (size_t _I = 0; _I < _N; ++_I, ++_U, ++_V)
			if (!eq(*_U, *_V))
				return (lt(*_U, *_V) ? -1 : +1);
		return (0); }
	static size_t length(const _E *_U)
		{size_t _N;
		for (_N = 0; !eq(*_U, _E(0)); ++_U)
			++_N;
		return (_N); }
	static _E *copy(_E *_U, const _E *_V, size_t _N)
		{_E *_S = _U;
		for (; 0 < _N; --_N, ++_U, ++_V)
			assign(*_U, *_V);
		return (_S); }
	static const _E *find(const _E *_U, size_t _N,
		const _E& _C)
		{for (; 0 < _N; --_N, ++_U)
			if (eq(*_U, _C))
				return (_U);
		return (0); }
	static _E *move(_E *_U, const _E *_V, size_t _N)
		{_E *_Ans = _U;
		if (_V < _U && _U < _V + _N)
			for (_U += _N, _V += _N; 0 < _N; --_N)
				assign(*--_U, *--_V);
		else
			for (; 0 < _N; --_N, ++_U, ++_V)
				assign(*_U, *_V);
		return (_Ans); }
	static _E *assign(_E *_U, size_t _N, const _E& _C)
		{_E *_Ans = _U;
		for (; 0 < _N; --_N, ++_U)
			assign(*_U, _C);
		return (_Ans); }
	static _E to_char_type(const int_type& _C)
		{return (_C); }
	static int_type to_int_type(const _E& _C)
		{return (_C); }
	static bool eq_int_type(const int_type& _X,
		const int_type& _Y)
		{return (_X == _Y); }
	static int_type eof()
		{return (EOF); }
	static int_type not_eof(const int_type& _C)
		{return (_C != eof() ? _C : !eof()); }
	static state_type get_state(pos_type _P)
		{return ((state_type)_P); }
	static pos_type get_pos(streampos _P, state_type _St)
		{return (pos_type(_P, streampos::_Fpz, _St)); }
	};
		// STRUCT char_traits<char> (FROM <string>)
struct char_traits<char> {
	typedef char _E;
	typedef _E char_type;
	typedef int int_type;
	typedef streampos pos_type;
	typedef streamoff off_type;
	typedef mbstate_t state_type;
	static void assign(_E& _X, const _E& _Y)
		{_X = _Y; }
	static bool eq(const _E& _X, const _E& _Y)
		{return (_X == _Y); }
	static bool lt(const _E& _X, const _E& _Y)
		{return (_X < _Y); }
	static int compare(const _E *_U, const _E *_V, size_t _N)
		{return (memcmp(_U, _V, _N)); }
	static size_t length(const _E *_U)
		{return (strlen(_U)); }
	static _E *copy(_E *_U, const _E *_V, size_t _N)
		{return ((_E *)memcpy(_U, _V, _N)); }
	static const _E *find(const _E *_U, size_t _N,
		const _E& _C)
		{return ((const _E *)memchr(_U, _C, _N)); }
	static _E *move(_E *_U, const _E *_V, size_t _N)
		{return ((_E *)memmove(_U, _V, _N)); }
	static _E *assign(_E *_U, size_t _N, const _E& _C)
		{return ((_E *)memset(_U, _C, _N)); }
	static _E to_char_type(const int_type& _C)
		{return (_C); }
	static int_type to_int_type(const _E& _C)
		{return ((unsigned char)_C); }
	static bool eq_int_type(const int_type& _X,
		const int_type& _Y)
		{return (_X == _Y); }
	static int_type eof()
		{return (EOF); }
	static int_type not_eof(const int_type& _C)
		{return (_C != eof() ? _C : !eof()); }
	static state_type get_state(pos_type _P)
		{return ((state_type)_P); }
	static pos_type get_pos(streampos _P, state_type _St)
		{return (pos_type(_P, streampos::_Fpz, _St)); }
	};
		// STRUCT char_traits<wchar_t>
struct char_traits<wchar_t> {
	typedef wchar_t _E;
	typedef _Wchart_unique char_type;	// for overloads
	typedef wint_t int_type;
	typedef streampos pos_type;
	typedef streamoff off_type;
	typedef mbstate_t state_type;
	static void assign(_E& _X, const _E& _Y)
		{_X = _Y; }
	static bool eq(const _E& _X, const _E& _Y)
		{return (_X == _Y); }
	static bool lt(const _E& _X, const _E& _Y)
		{return (_X < _Y); }
	static int compare(const _E *_U, const _E *_V, size_t _N)
		{return (wmemcmp(_U, _V, _N)); }
	static size_t length(const _E *_U)
		{return (wcslen(_U)); }
	static _E *copy(_E *_U, const _E *_V, size_t _N)
		{return (wmemcpy(_U, _V, _N)); }
	static const _E *find(const _E *_U, size_t _N,
		const _E& _C)
		{return ((const _E *)wmemchr(_U, _C, _N)); }
	static _E *move(_E *_U, const _E *_V, size_t _N)
		{return (wmemmove(_U, _V, _N)); }
	static _E *assign(_E *_U, size_t _N, const _E& _C)
		{return (wmemset(_U, _C, _N)); }
	static _E to_char_type(const int_type& _C)
		{return (_C); }
	static int_type to_int_type(const _E& _C)
		{return (_C); }
	static bool eq_int_type(const int_type& _X,
		const int_type& _Y)
		{return (_X == _Y); }
	static int_type eof()
		{return (WEOF); }
	static int_type not_eof(const int_type& _C)
		{return (_C != eof() ? _C : !eof()); }
	static state_type get_state(pos_type _P)
		{return ((state_type)_P); }
	static pos_type get_pos(streampos _P, state_type _St)
		{return (pos_type(_P, streampos::_Fpz, _St)); }
	};
		// FORWARD REFERENCES TO IOSTREAMS CLASSES
class ios_base;
template<class _E, class _TYPE>
	class basic_ios;
template<class _E, class _TYPE>
	class basic_istream;
template<class _E, class _TYPE>
	class basic_ostream;
template<class _E, class _TYPE>
	class basic_streambuf;
template<class _E>
	struct char_traits;
struct char_traits<char>;
struct char_traits<wchar_t>;
typedef basic_ios<char, char_traits<char> > ios;
typedef basic_ios<wchar_t, char_traits<wchar_t> > wios;
typedef basic_istream<char, char_traits<char> > istream;
typedef basic_ostream<char, char_traits<char> > ostream;
typedef basic_streambuf<char, char_traits<char> > streambuf;
typedef basic_istream<wchar_t, char_traits<wchar_t> > wistream;
typedef basic_ostream<wchar_t, char_traits<wchar_t> > wostream;
typedef basic_streambuf<wchar_t, char_traits<wchar_t> >
	wstreambuf;

#ifdef  _MSC_VER
#pragma pack(pop)
#endif  /* _MSC_VER */

#endif /* _IOSFWD_ */

/*
 * Copyright (c) 1995 by P.J. Plauger.  ALL RIGHTS RESERVED. 
 * Consult your license regarding permissions and restrictions.
 */