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// istream standard header #ifndef _ISTREAM_ #define _ISTREAM_ #include <ostream>
#ifdef _MSC_VER #pragma pack(push,8) #endif /* _MSC_VER */ _STD_BEGIN // TEMPLATE CLASS basic_istream template<class _E, class _Tr /* = char_traits<_E> */ > class basic_istream : virtual public basic_ios<_E, _Tr> { public: typedef basic_istream<_E, _Tr> _Myt; typedef basic_ios<_E, _Tr> _Myios; typedef basic_streambuf<_E, _Tr> _Mysb; typedef istreambuf_iterator<_E, _Tr> _Iter; typedef ctype<_E> _Ctype; typedef num_get<_E, _Iter> _Nget; explicit basic_istream(_Mysb *_S, bool _Isstd = false) : _Chcount(0) {init(_S, _Isstd); } basic_istream(_Uninitialized) {_Addstd(); } virtual ~basic_istream() {} class sentry { public: explicit sentry(_Myt& _Is, bool _Noskip = false) : _Ok(_Is.ipfx(_Noskip)) {} operator bool() const {return (_Ok); } private: bool _Ok; }; bool ipfx(bool _Noskip = false) {if (good()) {if (tie() != 0) tie()->flush(); if (!_Noskip && flags() & skipws) {const _Ctype& _Fac = _USE(getloc(), _Ctype); _TRY_IO_BEGIN int_type _C = rdbuf()->sgetc(); while (!_Tr::eq_int_type(_Tr::eof(), _C) && _Fac.is(_Ctype::space, _Tr::to_char_type(_C))) _C = rdbuf()->snextc(); _CATCH_IO_END } if (good()) return (true); } setstate(failbit); return (false); } void isfx() {} _Myt& operator>>(_Myt& (__cdecl *_F)(_Myt&)) {return ((*_F)(*this)); } _Myt& operator>>(_Myios& (__cdecl *_F)(_Myios&)) {(*_F)(*(_Myios *)this); return (*this); } _Myt& operator>>(ios_base& (__cdecl *_F)(ios_base&)) {(*_F)(*(ios_base *)this); return (*this); } _Myt& operator>>(_Bool& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(short& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {long _Y; const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _Y); _CATCH_IO_END if (_St & failbit || _Y < SHRT_MIN || SHRT_MAX < _Y) _St |= failbit; else _X = (short)_Y; } setstate(_St); return (*this); } _Myt& operator>>(unsigned short& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(int& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {long _Y; const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _Y); _CATCH_IO_END if (_St & failbit || _Y < INT_MIN || INT_MAX < _Y) _St |= failbit; else _X = _Y; } setstate(_St); return (*this); } _Myt& operator>>(unsigned int& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(long& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(unsigned long& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } #ifdef _WIN64 _Myt& operator>>(__int64& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(unsigned __int64& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } #endif // _WIN64 _Myt& operator>>(float& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(double& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(long double& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(void *& _X) {iostate _St = goodbit; const sentry _Ok(*this); if (_Ok) {const _Nget& _Fac = _USE(getloc(), _Nget); _TRY_IO_BEGIN _Fac.get(_Iter(rdbuf()), _Iter(0), *this, _St, _X); _CATCH_IO_END } setstate(_St); return (*this); } _Myt& operator>>(_Mysb *_Pb) {iostate _St = goodbit; bool _Copied = false; const sentry _Ok(*this); if (_Ok && _Pb != 0) {_TRY_IO_BEGIN int_type _C = rdbuf()->sgetc(); for (; ; _C = rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= eofbit; break; } else {_TRY_BEGIN if (_Tr::eq_int_type(_Tr::eof(), _Pb->sputc(_Tr::to_char_type(_C)))) break; _CATCH_ALL break; _CATCH_END _Copied = true; } _CATCH_IO_END } setstate(!_Copied ? _St | failbit : _St); return (*this); } int_type get() {int_type _C; iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (!_Ok) _C = _Tr::eof(); else {_TRY_IO_BEGIN _C = rdbuf()->sbumpc(); if (_Tr::eq_int_type(_Tr::eof(), _C)) _St |= eofbit | failbit; else ++_Chcount; _CATCH_IO_END } setstate(_St); return (_C); } _Myt& get(_E *_S, streamsize _N) {return (get(_S, _N, widen('\n'))); } _Myt& get(_E *_S, streamsize _N, _E _D) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok && 0 < _N) {_TRY_IO_BEGIN int_type _C = rdbuf()->sgetc(); for (; 0 < --_N; _C = rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= eofbit; break; } else if (_Tr::to_char_type(_C) == _D) break; else *_S++ = _Tr::to_char_type(_C), ++_Chcount; _CATCH_IO_END } setstate(_Chcount == 0 ? _St | failbit : _St); *_S = _E(0); return (*this); } _Myt& get(_E& _X) {int_type _C = get(); if (!_Tr::eq_int_type(_Tr::eof(), _C)) _X = _Tr::to_char_type(_C); return (*this); } _Myt& get(_Mysb& _Sb) {return (get(_Sb, widen('\n'))); } _Myt& get(_Mysb& _Sb, _E _D) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok) {_TRY_IO_BEGIN int_type _C = rdbuf()->sgetc(); for (; ; _C = rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= eofbit; break; } else {_TRY_BEGIN _E _Ch = _Tr::to_char_type(_C); if (_Ch == _D || _Tr::eq_int_type(_Tr::eof(), _Sb.sputc(_Ch))) break; _CATCH_ALL break; _CATCH_END ++_Chcount; } _CATCH_IO_END } if (_Chcount == 0) _St |= failbit; setstate(_St); return (*this); } _Myt& getline(_E *_S, streamsize _N) {return (getline(_S, _N, widen('\n'))); } _Myt& getline(_E *_S, streamsize _N, _E _D) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok && 0 < _N) {int_type _Di = _Tr::to_int_type(_D); _TRY_IO_BEGIN int_type _C = rdbuf()->sgetc(); for (; ; _C = rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= eofbit; break; } else if (_C == _Di) {++_Chcount; rdbuf()->stossc(); break; } else if (--_N <= 0) {_St |= failbit; break; } else {++_Chcount; *_S++ = _Tr::to_char_type(_C); } _CATCH_IO_END } *_S = _E(0); setstate(_Chcount == 0 ? _St | failbit : _St); return (*this); } _Myt& ignore(streamsize _N = 1, int_type _Di = _Tr::eof()) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok && 0 < _N) {_TRY_IO_BEGIN for (; ; ) {int_type _C; if (_N != INT_MAX && --_N < 0) break; else if (_Tr::eq_int_type(_Tr::eof(), _C = rdbuf()->sbumpc())) {_St |= eofbit; break; } else {++_Chcount; if (_C == _Di) break; }} _CATCH_IO_END } setstate(_St); return (*this); } _Myt& read(_E *_S, streamsize _N) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok) {_TRY_IO_BEGIN const streamsize _M = rdbuf()->sgetn(_S, _N); _Chcount += _M; if (_M != _N) _St |= eofbit | failbit; _CATCH_IO_END } setstate(_St); return (*this); } streamsize readsome(_E *_S, streamsize _N) {iostate _St = goodbit; _Chcount = 0; int _M; if (rdbuf() == 0) _St |= failbit; else if ((_M = rdbuf()->in_avail()) < 0) _St |= eofbit; else if (0 < _M) read(_S, _M < _N ? _M : _N); setstate(_St); return (gcount()); } int_type peek() {iostate _St = goodbit; _Chcount = 0; int_type _C; const sentry _Ok(*this, true); if (!_Ok) _C = _Tr::eof(); else {_TRY_IO_BEGIN if (_Tr::eq_int_type(_Tr::eof(), _C = rdbuf()->sgetc())) _St |= eofbit; _CATCH_IO_END } setstate(_St); return (_C); } _Myt& putback(_E _X) {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok) {_TRY_IO_BEGIN if (_Tr::eq_int_type(_Tr::eof(), rdbuf()->sputbackc(_X))) _St |= badbit; _CATCH_IO_END } setstate(_St); return (*this); } _Myt& unget() {iostate _St = goodbit; _Chcount = 0; const sentry _Ok(*this, true); if (_Ok) {_TRY_IO_BEGIN if (_Tr::eq_int_type(_Tr::eof(), rdbuf()->sungetc())) _St |= badbit; _CATCH_IO_END } setstate(_St); return (*this); } streamsize gcount() const {return (_Chcount); } int sync() {iostate _St = goodbit; int _Ans; if (rdbuf() == 0) _Ans = -1; else if (rdbuf()->pubsync() == -1) _St |= badbit, _Ans = -1; else _Ans = 0; setstate(_St); return (_Ans); } _Myt& seekg(pos_type _P) {if (!fail()) rdbuf()->pubseekpos(_P, in); return (*this); } _Myt& seekg(off_type _O, ios_base::seekdir _W) {if (!fail()) rdbuf()->pubseekoff(_O, _W, in); return (*this); } pos_type tellg() {if (!fail()) return (rdbuf()->pubseekoff(0, cur, in)); else return (streampos(_BADOFF)); } private: streamsize _Chcount; };
#ifdef _DLL #pragma warning(disable:4231) /* the extern before template is a non-standard extension */ extern template class _CRTIMP basic_istream<char, char_traits<char> >; extern template class _CRTIMP basic_istream<wchar_t, char_traits<wchar_t> >; #pragma warning(default:4231) /* restore previous warning */ #endif // _DLL
// TEMPLATE CLASS basic_iostream template<class _E, class _Tr /* = char_traits<_E> */ > class basic_iostream : public basic_istream<_E, _Tr>, public basic_ostream<_E, _Tr> { public: explicit basic_iostream(basic_streambuf<_E, _Tr> *_S) : basic_istream<_E, _Tr>(_S), basic_ostream<_E, _Tr>(_S, false, false) {} virtual ~basic_iostream() {} };
#ifdef _DLL #pragma warning(disable:4231) /* the extern before template is a non-standard extension */ extern template class _CRTIMP basic_iostream<char, char_traits<char> >; extern template class _CRTIMP basic_iostream<wchar_t, char_traits<wchar_t> >; #pragma warning(default:4231) /* restore previous warning */ #endif // _DLL
// EXTRACTORS template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, _E *_X) {typedef basic_istream<_E, _Tr> _Myis; typedef ctype<_E> _Ctype; ios_base::iostate _St = ios_base::goodbit; _E *_S = _X; const _Myis::sentry _Ok(_I); if (_Ok) {const _Ctype& _Fac = _USE(_I.getloc(), _Ctype); _TRY_IO_BEGIN int _N = 0 < _I.width() ? _I.width() : INT_MAX; _Myis::int_type _C = _I.rdbuf()->sgetc(); for (; 0 < --_N; _C = _I.rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= ios_base::eofbit; break; } else if (_Fac.is(_Ctype::space, _Tr::to_char_type(_C))) break; else *_S++ = _Tr::to_char_type(_C); _CATCH_IO_(_I) } *_S = _E(0); _I.width(0); _I.setstate(_S == _X ? _St | ios_base::failbit : _St); return (_I); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, _E& _X) {typedef basic_istream<_E, _Tr> _Myis; _Myis::int_type _C; ios_base::iostate _St = ios_base::goodbit; const _Myis::sentry _Ok(_I); if (_Ok) {_TRY_IO_BEGIN _C = _I.rdbuf()->sbumpc(); if (_Tr::eq_int_type(_Tr::eof(), _C)) _St |= ios_base::eofbit | ios_base::failbit; else _X = _Tr::to_char_type(_C); _CATCH_IO_(_I) } _I.setstate(_St); return (_I); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, signed char *_X) {return (_I >> (char *)_X); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, signed char& _C) {return (_I >> (char&)_C); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, unsigned char *_X) {return (_I >> (char *)_X); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, unsigned char& _C) {return (_I >> (char&)_C); } template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl operator>>( basic_istream<_E, _Tr>& _I, signed short * _X) {return (_I >> (wchar_t *)_X); } // MANIPULATORS template<class _E, class _Tr> inline basic_istream<_E, _Tr>& __cdecl ws(basic_istream<_E, _Tr>& _I) {typedef basic_istream<_E, _Tr> _Myis; typedef ctype<_E> _Ctype; ios_base::iostate _St = ios_base::goodbit; const _Myis::sentry _Ok(_I, true); if (_Ok) {const _Ctype& _Fac = _USE(_I.getloc(), _Ctype); _TRY_IO_BEGIN for (_Tr::int_type _C = _I.rdbuf()->sgetc(); ; _C = _I.rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= ios_base::eofbit; break; } else if (!_Fac.is(_Ctype::space, _Tr::to_char_type(_C))) break; _CATCH_IO_(_I) } _I.setstate(_St); return (_I); } _CRTIMP inline basic_istream<char, char_traits<char> >& __cdecl ws(basic_istream<char, char_traits<char> >& _I) {typedef char _E; typedef char_traits<_E> _Tr; ios_base::iostate _St = ios_base::goodbit; const basic_istream<_E, _Tr>::sentry _Ok(_I, true); if (_Ok) {const ctype<_E>& _Fac = _USE(_I.getloc(), ctype<_E>); _TRY_IO_BEGIN for (_Tr::int_type _C = _I.rdbuf()->sgetc(); ; _C = _I.rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= ios_base::eofbit; break; } else if (!_Fac.is(ctype<_E>::space, _Tr::to_char_type(_C))) break; _CATCH_IO_(_I) } _I.setstate(_St); return (_I); } _CRTIMP inline basic_istream<wchar_t, char_traits<wchar_t> >& __cdecl ws(basic_istream<wchar_t, char_traits<wchar_t> >& _I) {typedef wchar_t _E; typedef char_traits<_E> _Tr; ios_base::iostate _St = ios_base::goodbit; const basic_istream<_E, _Tr>::sentry _Ok(_I, true); if (_Ok) {const ctype<_E>& _Fac = _USE(_I.getloc(), ctype<_E>); _TRY_IO_BEGIN for (_Tr::int_type _C = _I.rdbuf()->sgetc(); ; _C = _I.rdbuf()->snextc()) if (_Tr::eq_int_type(_Tr::eof(), _C)) {_St |= ios_base::eofbit; break; } else if (_Fac.is(ctype<_E>::space, _Tr::to_char_type(_C))) break; _CATCH_IO_(_I) } _I.setstate(_St); return (_I); }
#ifdef _DLL #pragma warning(disable:4231) /* the extern before template is a non-standard extension */
extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, char *); extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, char&); extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, signed char *); extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, signed char&); extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, unsigned char *); extern template _CRTIMP basic_istream<char, char_traits<char> >& __cdecl operator>>( basic_istream<char, char_traits<char> >&, unsigned char&); extern template _CRTIMP basic_istream<wchar_t, char_traits<wchar_t> >& __cdecl operator>>( basic_istream<wchar_t, char_traits<wchar_t> >&, wchar_t *); extern template _CRTIMP basic_istream<wchar_t, char_traits<wchar_t> >& __cdecl operator>>( basic_istream<wchar_t, char_traits<wchar_t> >&, wchar_t&); extern template _CRTIMP basic_istream<wchar_t, char_traits<wchar_t> >& __cdecl operator>>( basic_istream<wchar_t, char_traits<wchar_t> >&, signed short *);
#pragma warning(default:4231) /* restore previous warning */ #endif // _DLL
_STD_END #ifdef _MSC_VER #pragma pack(pop) #endif /* _MSC_VER */
#endif /* _ISTREAM_ */
/* * Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
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