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// istream standard header |
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#pragma once |
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#ifndef _ISTREAM_ |
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#define _ISTREAM_ |
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#ifndef RC_INVOKED |
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#include <ostream> |
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#ifdef _MSC_VER |
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#pragma pack(push,_CRT_PACKING) |
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#pragma warning(push,3) |
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#endif /* _MSC_VER */ |
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_STD_BEGIN |
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// TEMPLATE CLASS basic_istream |
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template<class _Elem, |
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class _Traits> |
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class basic_istream |
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: virtual public basic_ios<_Elem, _Traits> |
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{ // control extractions from a stream buffer |
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public: |
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typedef basic_istream<_Elem, _Traits> _Myt; |
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typedef basic_ios<_Elem, _Traits> _Myios; |
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typedef basic_streambuf<_Elem, _Traits> _Mysb; |
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typedef istreambuf_iterator<_Elem, _Traits> _Iter; |
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typedef ctype<_Elem> _Ctype; |
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typedef num_get<_Elem, _Iter> _Nget; |
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explicit __CLR_OR_THIS_CALL basic_istream(_Mysb *_Strbuf, bool _Isstd = false) |
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: _Chcount(0) |
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{ // construct from stream buffer pointer |
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_Myios::init(_Strbuf, _Isstd); |
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} |
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__CLR_OR_THIS_CALL basic_istream(_Uninitialized) |
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{ // construct uninitialized |
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ios_base::_Addstd(this); |
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} |
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virtual __CLR_OR_THIS_CALL ~basic_istream() |
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{ // destroy the object |
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} |
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typedef typename _Traits::int_type int_type; |
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typedef typename _Traits::pos_type pos_type; |
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typedef typename _Traits::off_type off_type; |
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// TEMPLATE CLASS sentry |
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class _Sentry_base |
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{ // stores thread lock and reference to input stream |
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public: |
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__CLR_OR_THIS_CALL _Sentry_base(_Myt& _Istr) |
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: _Myistr(_Istr) |
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{ // lock the stream buffer, if there |
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if (_Myistr.rdbuf() != 0) |
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_Myistr.rdbuf()->_Lock(); |
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} |
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__CLR_OR_THIS_CALL ~_Sentry_base() |
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{ // destroy after unlocking |
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if (_Myistr.rdbuf() != 0) |
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_Myistr.rdbuf()->_Unlock(); |
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} |
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_Myt& _Myistr; // the input stream, for _Unlock call at destruction |
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}; |
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class sentry |
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: public _Sentry_base |
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{ // stores thread lock and result of _Ipfx call |
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public: |
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explicit __CLR_OR_THIS_CALL sentry(_Myt& _Istr, bool _Noskip = false) |
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: _Sentry_base(_Istr) |
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{ // construct locking and calling _Ipfx |
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_Ok = this->_Myistr._Ipfx(_Noskip); |
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} |
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__CLR_OR_THIS_CALL operator bool() const |
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{ // test if _Ipfx succeeded |
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return (_Ok); |
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} |
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private: |
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__CLR_OR_THIS_CALL sentry(const sentry&); // not defined |
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sentry& __CLR_OR_THIS_CALL operator=(const sentry&); // not defined |
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bool _Ok; // true if _Ipfx succeeded at construction |
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}; |
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bool __CLR_OR_THIS_CALL _Ipfx(bool _Noskip = false) |
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{ // test stream state and skip whitespace as needed |
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if (ios_base::good()) |
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{ // state okay, flush tied stream and skip whitespace |
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if (_Myios::tie() != 0) |
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_Myios::tie()->flush(); |
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if (!_Noskip && ios_base::flags() & ios_base::skipws) |
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{ // skip whitespace |
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const _Ctype& _Ctype_fac = _USE(ios_base::getloc(), _Ctype); |
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_TRY_IO_BEGIN |
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int_type _Meta = _Myios::rdbuf()->sgetc(); |
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for (; ; _Meta = _Myios::rdbuf()->snextc()) |
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if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
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{ // end of file, quit |
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_Myios::setstate(ios_base::eofbit); |
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break; |
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} |
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else if (!_Ctype_fac.is(_Ctype::space, |
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_Traits::to_char_type(_Meta))) |
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break; // not whitespace, quit |
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_CATCH_IO_END |
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} |
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if (ios_base::good()) |
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return (true); |
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} |
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_Myios::setstate(ios_base::failbit); |
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return (false); |
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} |
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bool __CLR_OR_THIS_CALL ipfx(bool _Noskip = false) |
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{ // test stream state and skip whitespace as needed (retained) |
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return _Ipfx(_Noskip); |
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} |
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void __CLR_OR_THIS_CALL isfx() |
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{ // perform any wrapup (retained) |
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} |
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#ifdef _M_CEE_PURE |
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_Myt& __CLR_OR_THIS_CALL operator>>(_Myt& (__clrcall *_Pfn)(_Myt&)) |
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{ // call basic_istream manipulator |
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_DEBUG_POINTER(_Pfn); |
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return ((*_Pfn)(*this)); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(_Myios& (__clrcall *_Pfn)(_Myios&)) |
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{ // call basic_ios manipulator |
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_DEBUG_POINTER(_Pfn); |
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(*_Pfn)(*(_Myios *)this); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(ios_base& (__clrcall *_Pfn)(ios_base&)) |
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{ // call ios_base manipulator |
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_DEBUG_POINTER(_Pfn); |
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(*_Pfn)(*(ios_base *)this); |
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return (*this); |
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} |
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#endif |
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_Myt& __CLR_OR_THIS_CALL operator>>(_Myt& (__cdecl *_Pfn)(_Myt&)) |
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{ // call basic_istream manipulator |
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_DEBUG_POINTER(_Pfn); |
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return ((*_Pfn)(*this)); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(_Myios& (__cdecl *_Pfn)(_Myios&)) |
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{ // call basic_ios manipulator |
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_DEBUG_POINTER(_Pfn); |
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(*_Pfn)(*(_Myios *)this); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(ios_base& (__cdecl *_Pfn)(ios_base&)) |
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{ // call ios_base manipulator |
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_DEBUG_POINTER(_Pfn); |
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(*_Pfn)(*(ios_base *)this); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(_Bool& _Val) |
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{ // extract a boolean |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(short& _Val) |
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{ // extract a short |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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long _Tmp = 0; |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Tmp); |
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_CATCH_IO_END |
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if (_State & ios_base::failbit |
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|| _Tmp < SHRT_MIN || SHRT_MAX < _Tmp) |
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_State |= ios_base::failbit; |
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else |
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_Val = (short)_Tmp; |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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/* Note that if your stream is wchar_t, and you are not using native wchar_t |
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Then this operation will be unavailable as there is an explicit |
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specialisation further down this file that is designed to treat an |
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unsigned short as a character. |
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If you wish to read or write unsigned shorts to wchar_t streams, you should |
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consider making wchar_t a native type by turning on /Zc:wchar_t |
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*/ |
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_Myt& __CLR_OR_THIS_CALL operator>>(unsigned short& _Val) |
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{ // extract an unsigned short |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(int& _Val) |
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{ // extract an int |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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long _Tmp = 0; |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Tmp); |
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_CATCH_IO_END |
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if (_State & ios_base::failbit |
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|| _Tmp < INT_MIN || INT_MAX < _Tmp) |
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_State |= ios_base::failbit; |
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else |
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_Val = _Tmp; |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(unsigned int& _Val) |
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{ // extract an unsigned int |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(long& _Val) |
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{ // extract a long |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(unsigned long __w64& _Val) |
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{ // extract an unsigned long |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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#ifdef _LONGLONG |
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_Myt& __CLR_OR_THIS_CALL operator>>(_LONGLONG& _Val) |
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{ // extract a long long |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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344 |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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_Myt& __CLR_OR_THIS_CALL operator>>(_ULONGLONG& _Val) |
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{ // extract an unsigned long long |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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_TRY_IO_BEGIN |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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_CATCH_IO_END |
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} |
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362 |
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_Myios::setstate(_State); |
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return (*this); |
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} |
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#endif /* _LONGLONG */ |
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_Myt& __CLR_OR_THIS_CALL operator>>(float& _Val) |
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{ // extract a float |
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ios_base::iostate _State = ios_base::goodbit; |
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const sentry _Ok(*this); |
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|
372 |
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if (_Ok) |
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{ // state okay, use facet to extract |
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const _Nget& _Nget_fac = _USE(ios_base::getloc(), _Nget); |
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|
376 |
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_TRY_IO_BEGIN |
377 |
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_Nget_fac.get(_Iter(_Myios::rdbuf()), _Iter(0), |
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*this, _State, _Val); |
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if (_Myios::rdbuf() == 0) |
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_Ans = -1; // no buffer, fail |
801 |
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else if (_Myios::rdbuf()->pubsync() == -1) |
802 |
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{ // stream buffer sync failed, fail |
803 |
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_State |= ios_base::badbit; |
804 |
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_Ans = -1; |
805 |
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} |
806 |
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else |
807 |
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_Ans = 0; // success |
808 |
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|
809 |
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_Myios::setstate(_State); |
810 |
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return (_Ans); |
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} |
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813 |
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_Myt& __CLR_OR_THIS_CALL seekg(pos_type _Pos) |
814 |
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{ // set input stream position to _Pos |
815 |
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if (!ios_base::fail() |
816 |
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&& (off_type)_Myios::rdbuf()->pubseekpos(_Pos, |
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ios_base::in) == _BADOFF) |
818 |
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_Myios::setstate(ios_base::failbit); |
819 |
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else |
820 |
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_Myios::clear(); // clear eofbit if set |
821 |
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return (*this); |
822 |
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} |
823 |
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|
824 |
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_Myt& __CLR_OR_THIS_CALL seekg(off_type _Off, ios_base::seekdir _Way) |
825 |
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{ // change input stream position by _Off, according to _Way |
826 |
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if (!ios_base::fail() |
827 |
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&& (off_type)_Myios::rdbuf()->pubseekoff(_Off, _Way, |
828 |
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ios_base::in) == _BADOFF) |
829 |
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_Myios::setstate(ios_base::failbit); |
830 |
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else |
831 |
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_Myios::clear(); // clear eofbit if set |
832 |
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return (*this); |
833 |
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} |
834 |
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835 |
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pos_type __CLR_OR_THIS_CALL tellg() |
836 |
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{ // return input stream position |
837 |
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if (!ios_base::fail()) |
838 |
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return (_Myios::rdbuf()->pubseekoff(0, |
839 |
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ios_base::cur, ios_base::in)); |
840 |
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else |
841 |
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return (pos_type(_BADOFF)); |
842 |
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} |
843 |
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|
844 |
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private: |
845 |
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streamsize _Chcount; // the character count |
846 |
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}; |
847 |
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|
848 |
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#ifndef _NATIVE_WCHAR_T_DEFINED |
849 |
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/* |
850 |
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This explicit template specialisation reads a single unicode character from the stream. |
851 |
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|
852 |
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By default, the compiler treats wchar_t as if it were a typedef for unsigned short. This means |
853 |
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that we cannot distinguish between an unsigned short and a wchar_t in the library. To be most |
854 |
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consistent with previous practice, we add this explicit specialisation to ensure that a single |
855 |
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unsigned short is read and written as a character. |
856 |
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|
857 |
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If you wish to read and write unsigned shorts as integers, we recommend you consider making |
858 |
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wchar_t a native type by using the /Zc:wchar_t compiler switch. |
859 |
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*/ |
860 |
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template <> inline |
861 |
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basic_istream<unsigned short, char_traits<unsigned short> >&__CLR_OR_THIS_CALL |
862 |
|
basic_istream<unsigned short, char_traits<unsigned short> >::operator>>( |
863 |
|
unsigned short& _Ch) |
864 |
|
{ // extract a character |
865 |
|
typedef basic_istream<unsigned short, char_traits<unsigned short> > _Myis; |
866 |
|
typedef char_traits<unsigned short> _Traits; |
867 |
|
_Myis::int_type _Meta; |
868 |
|
_Myis &_Istr=*this; |
869 |
|
ios_base::iostate _State = ios_base::goodbit; |
870 |
|
const _Myis::sentry _Ok(_Istr); |
871 |
|
|
872 |
|
if (_Ok) |
873 |
|
{ // state okay, extract characters |
874 |
|
_TRY_IO_BEGIN |
875 |
|
_Meta = _Istr.rdbuf()->sbumpc(); |
876 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
877 |
|
_State |= ios_base::eofbit | ios_base::failbit; // end of file |
878 |
|
else |
879 |
|
_Ch = _Traits::to_char_type(_Meta); // got a character |
880 |
|
_CATCH_IO_(_Istr) |
881 |
|
} |
882 |
|
|
883 |
|
_Istr.setstate(_State); |
884 |
|
return (_Istr); |
885 |
|
} |
886 |
|
#endif |
887 |
|
|
888 |
|
#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) |
889 |
|
|
890 |
|
template class _CRTIMP2_PURE basic_istream<char, char_traits<char> >; |
891 |
|
template class _CRTIMP2_PURE basic_istream<wchar_t, char_traits<wchar_t> >; |
892 |
|
|
893 |
|
|
894 |
|
|
895 |
|
#endif /* _DLL_CPPLIB */ |
896 |
|
|
897 |
|
// TEMPLATE CLASS basic_iostream |
898 |
|
template<class _Elem, |
899 |
|
class _Traits> |
900 |
|
class basic_iostream |
901 |
|
: public basic_istream<_Elem, _Traits>, |
902 |
|
public basic_ostream<_Elem, _Traits> |
903 |
|
{ // control insertions and extractions from a stream buffer |
904 |
|
public: |
905 |
|
typedef _Elem char_type; |
906 |
|
typedef _Traits traits_type; |
907 |
|
typedef typename _Traits::int_type int_type; |
908 |
|
typedef typename _Traits::pos_type pos_type; |
909 |
|
typedef typename _Traits::off_type off_type; |
910 |
|
|
911 |
|
explicit __CLR_OR_THIS_CALL basic_iostream(basic_streambuf<_Elem, _Traits> *_Strbuf) |
912 |
|
: basic_istream<_Elem, _Traits>(_Strbuf, false), |
913 |
|
basic_ostream<_Elem, _Traits>(_Noinit, false) |
914 |
|
{ // construct from stream buffer pointer |
915 |
|
} |
916 |
|
|
917 |
|
virtual __CLR_OR_THIS_CALL ~basic_iostream() |
918 |
|
{ // destroy the object |
919 |
|
} |
920 |
|
}; |
921 |
|
|
922 |
|
#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) |
923 |
|
|
924 |
|
template class _CRTIMP2_PURE basic_iostream<char, char_traits<char> >; |
925 |
|
template class _CRTIMP2_PURE basic_iostream<wchar_t, char_traits<wchar_t> >; |
926 |
|
|
927 |
|
|
928 |
|
|
929 |
|
#endif /* _DLL_CPPLIB */ |
930 |
|
|
931 |
|
// EXTRACTORS |
932 |
|
template<class _Elem, |
933 |
|
class _Traits> inline |
934 |
|
basic_istream<_Elem, _Traits>& __CLRCALL_OR_CDECL operator>>( |
935 |
|
basic_istream<_Elem, _Traits>& _Istr, _Elem *_Str) |
936 |
|
{ // extract NTBS |
937 |
|
_DEBUG_POINTER(_Str); |
938 |
|
typedef basic_istream<_Elem, _Traits> _Myis; |
939 |
|
typedef ctype<_Elem> _Ctype; |
940 |
|
ios_base::iostate _State = ios_base::goodbit; |
941 |
|
_Elem *_Str0 = _Str; |
942 |
|
const typename _Myis::sentry _Ok(_Istr); |
943 |
|
|
944 |
|
if (_Ok) |
945 |
|
{ // state okay, extract characters |
946 |
|
const _Ctype& _Ctype_fac = _USE(_Istr.getloc(), _Ctype); |
947 |
|
|
948 |
|
_TRY_IO_BEGIN |
949 |
|
streamsize _Count = 0 < _Istr.width() ? _Istr.width() : INT_MAX; |
950 |
|
typename _Myis::int_type _Meta = _Istr.rdbuf()->sgetc(); |
951 |
|
_Elem _Ch; |
952 |
|
for (; 0 < --_Count; _Meta = _Istr.rdbuf()->snextc()) |
953 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
954 |
|
{ // end of file, quit |
955 |
|
_State |= ios_base::eofbit; |
956 |
|
break; |
957 |
|
} |
958 |
|
else if (_Ctype_fac.is(_Ctype::space, |
959 |
|
_Ch = _Traits::to_char_type(_Meta)) |
960 |
|
|| _Ch == _Elem()) |
961 |
|
break; // whitespace or nul, quit |
962 |
|
else |
963 |
|
*_Str++ = _Traits::to_char_type(_Meta); // add it to string |
964 |
|
_CATCH_IO_(_Istr) |
965 |
|
} |
966 |
|
|
967 |
|
*_Str = _Elem(); // add terminating null character |
968 |
|
_Istr.width(0); |
969 |
|
_Istr.setstate(_Str == _Str0 ? _State | ios_base::failbit : _State); |
970 |
|
return (_Istr); |
971 |
|
} |
972 |
|
|
973 |
|
template<class _Elem, |
974 |
|
class _Traits> inline |
975 |
|
basic_istream<_Elem, _Traits>& __CLRCALL_OR_CDECL operator>>( |
976 |
|
basic_istream<_Elem, _Traits>& _Istr, _Elem& _Ch) |
977 |
|
{ // extract a character |
978 |
|
typedef basic_istream<_Elem, _Traits> _Myis; |
979 |
|
typename _Myis::int_type _Meta; |
980 |
|
ios_base::iostate _State = ios_base::goodbit; |
981 |
|
const typename _Myis::sentry _Ok(_Istr); |
982 |
|
|
983 |
|
if (_Ok) |
984 |
|
{ // state okay, extract characters |
985 |
|
_TRY_IO_BEGIN |
986 |
|
_Meta = _Istr.rdbuf()->sbumpc(); |
987 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
988 |
|
_State |= ios_base::eofbit | ios_base::failbit; // end of file |
989 |
|
else |
990 |
|
_Ch = _Traits::to_char_type(_Meta); // got a character |
991 |
|
_CATCH_IO_(_Istr) |
992 |
|
} |
993 |
|
|
994 |
|
_Istr.setstate(_State); |
995 |
|
return (_Istr); |
996 |
|
} |
997 |
|
|
998 |
|
#ifdef _MSC_VER |
999 |
|
template<class _Traits> inline |
1000 |
|
basic_istream<char, _Traits>& __CLRCALL_OR_CDECL operator>>( |
1001 |
|
basic_istream<char, _Traits>& _Istr, signed char *_Str) |
1002 |
|
{ // extract a signed char NTBS |
1003 |
|
return (_Istr >> (char *)_Str); |
1004 |
|
} |
1005 |
|
|
1006 |
|
template<class _Traits> inline |
1007 |
|
basic_istream<char, _Traits>& __CLRCALL_OR_CDECL operator>>( |
1008 |
|
basic_istream<char, _Traits>& _Istr, signed char& _Ch) |
1009 |
|
{ // extract a signed char |
1010 |
|
return (_Istr >> (char&)_Ch); |
1011 |
|
} |
1012 |
|
|
1013 |
|
template<class _Traits> inline |
1014 |
|
basic_istream<char, _Traits>& __CLRCALL_OR_CDECL operator>>( |
1015 |
|
basic_istream<char, _Traits>& _Istr, unsigned char *_Str) |
1016 |
|
{ // extract an unsigned char NTBS |
1017 |
|
return (_Istr >> (char *)_Str); |
1018 |
|
} |
1019 |
|
|
1020 |
|
template<class _Traits> inline |
1021 |
|
basic_istream<char, _Traits>& __CLRCALL_OR_CDECL operator>>( |
1022 |
|
basic_istream<char, _Traits>& _Istr, unsigned char& _Ch) |
1023 |
|
{ // extract an unsigned char |
1024 |
|
return (_Istr >> (char&)_Ch); |
1025 |
|
} |
1026 |
|
|
1027 |
|
#endif |
1028 |
|
|
1029 |
|
// MANIPULATORS |
1030 |
|
template<class _Elem, |
1031 |
|
class _Traits> inline |
1032 |
|
basic_istream<_Elem, _Traits>& |
1033 |
|
__CLRCALL_OR_CDECL ws(basic_istream<_Elem, _Traits>& _Istr) |
1034 |
|
{ // consume whitespace |
1035 |
|
typedef basic_istream<_Elem, _Traits> _Myis; |
1036 |
|
typedef ctype<_Elem> _Ctype; |
1037 |
|
|
1038 |
|
if (!_Istr.eof()) |
1039 |
|
{ // not at eof, okay to construct sentry and skip |
1040 |
|
ios_base::iostate _State = ios_base::goodbit; |
1041 |
|
const typename _Myis::sentry _Ok(_Istr, true); |
1042 |
|
|
1043 |
|
if (_Ok) |
1044 |
|
{ // state okay, extract characters |
1045 |
|
const _Ctype& _Ctype_fac = _USE(_Istr.getloc(), _Ctype); |
1046 |
|
|
1047 |
|
_TRY_IO_BEGIN |
1048 |
|
for (typename _Traits::int_type _Meta = _Istr.rdbuf()->sgetc(); ; |
1049 |
|
_Meta = _Istr.rdbuf()->snextc()) |
1050 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
1051 |
|
{ // end of file, quit |
1052 |
|
_State |= ios_base::eofbit; |
1053 |
|
break; |
1054 |
|
} |
1055 |
|
else if (!_Ctype_fac.is(_Ctype::space, |
1056 |
|
_Traits::to_char_type(_Meta))) |
1057 |
|
break; // not whitespace, quit |
1058 |
|
_CATCH_IO_(_Istr) |
1059 |
|
} |
1060 |
|
|
1061 |
|
_Istr.setstate(_State); |
1062 |
|
} |
1063 |
|
return (_Istr); |
1064 |
|
} |
1065 |
|
|
1066 |
|
_CRTIMP2_PURE inline basic_istream<char, char_traits<char> >& |
1067 |
|
__CLRCALL_OR_CDECL ws(basic_istream<char, char_traits<char> >& _Istr) |
1068 |
|
{ // consume whitespace |
1069 |
|
typedef char _Elem; |
1070 |
|
typedef char_traits<_Elem> _Traits; |
1071 |
|
|
1072 |
|
if (!_Istr.eof()) |
1073 |
|
{ // not at eof, okay to construct sentry and skip |
1074 |
|
ios_base::iostate _State = ios_base::goodbit; |
1075 |
|
const basic_istream<_Elem, _Traits>::sentry _Ok(_Istr, true); |
1076 |
|
|
1077 |
|
if (_Ok) |
1078 |
|
{ // state okay, use facet to extract |
1079 |
|
const ctype<_Elem>& _Ctype_fac = |
1080 |
|
_USE(_Istr.getloc(), ctype<_Elem>); |
1081 |
|
|
1082 |
|
_TRY_IO_BEGIN |
1083 |
|
for (_Traits::int_type _Meta = _Istr.rdbuf()->sgetc(); ; |
1084 |
|
_Meta = _Istr.rdbuf()->snextc()) |
1085 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
1086 |
|
{ // end of file, quit |
1087 |
|
_State |= ios_base::eofbit; |
1088 |
|
break; |
1089 |
|
} |
1090 |
|
else if (!_Ctype_fac.is(ctype<_Elem>::space, |
1091 |
|
_Traits::to_char_type(_Meta))) |
1092 |
|
break; // not whitespace, quit |
1093 |
|
_CATCH_IO_(_Istr) |
1094 |
|
} |
1095 |
|
|
1096 |
|
_Istr.setstate(_State); |
1097 |
|
} |
1098 |
|
return (_Istr); |
1099 |
|
} |
1100 |
|
|
1101 |
|
_CRTIMP2_PURE inline basic_istream<wchar_t, char_traits<wchar_t> >& |
1102 |
|
__CLRCALL_OR_CDECL ws(basic_istream<wchar_t, char_traits<wchar_t> >& _Istr) |
1103 |
|
{ // consume whitespace |
1104 |
|
typedef wchar_t _Elem; |
1105 |
|
typedef char_traits<_Elem> _Traits; |
1106 |
|
|
1107 |
|
if (!_Istr.eof()) |
1108 |
|
{ // not at eof, okay to construct sentry and skip |
1109 |
|
ios_base::iostate _State = ios_base::goodbit; |
1110 |
|
const basic_istream<_Elem, _Traits>::sentry _Ok(_Istr, true); |
1111 |
|
|
1112 |
|
if (_Ok) |
1113 |
|
{ // state okay, use facet to extract |
1114 |
|
const ctype<_Elem>& _Ctype_fac = |
1115 |
|
_USE(_Istr.getloc(), ctype<_Elem>); |
1116 |
|
|
1117 |
|
_TRY_IO_BEGIN |
1118 |
|
for (_Traits::int_type _Meta = _Istr.rdbuf()->sgetc(); ; |
1119 |
|
_Meta = _Istr.rdbuf()->snextc()) |
1120 |
|
if (_Traits::eq_int_type(_Traits::eof(), _Meta)) |
1121 |
|
{ // end of file, quit |
1122 |
|
_State |= ios_base::eofbit; |
1123 |
|
break; |
1124 |
|
} |
1125 |
|
else if (!_Ctype_fac.is(ctype<_Elem>::space, |
1126 |
|
_Traits::to_char_type(_Meta))) |
1127 |
|
break; // not whitespace, quit |
1128 |
|
_CATCH_IO_(_Istr) |
1129 |
|
} |
1130 |
|
|
1131 |
|
_Istr.setstate(_State); |
1132 |
|
} |
1133 |
|
return (_Istr); |
1134 |
|
} |
1135 |
|
|
1136 |
|
|
1137 |
|
|
1138 |
|
#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) |
1139 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1140 |
|
operator>>(basic_istream<char, char_traits<char> >&, char *); |
1141 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1142 |
|
operator>>(basic_istream<char, char_traits<char> >&, char&); |
1143 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1144 |
|
operator>>(basic_istream<char, char_traits<char> >&, signed char *); |
1145 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1146 |
|
operator>>(basic_istream<char, char_traits<char> >&, signed char&); |
1147 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1148 |
|
operator>>(basic_istream<char, char_traits<char> >&, unsigned char *); |
1149 |
|
template _CRTIMP2_PURE basic_istream<char, char_traits<char> >& __CLRCALL_OR_CDECL |
1150 |
|
operator>>(basic_istream<char, char_traits<char> >&, unsigned char&); |
1151 |
|
template _CRTIMP2_PURE basic_istream<wchar_t, char_traits<wchar_t> >& __CLRCALL_OR_CDECL |
1152 |
|
operator>>(basic_istream<wchar_t, char_traits<wchar_t> >&, wchar_t *); |
1153 |
|
template _CRTIMP2_PURE basic_istream<wchar_t, char_traits<wchar_t> >& __CLRCALL_OR_CDECL |
1154 |
|
operator>>(basic_istream<wchar_t, char_traits<wchar_t> >&, wchar_t&); |
1155 |
|
|
1156 |
|
|
1157 |
|
|
1158 |
|
#endif /* _DLL_CPPLIB */ |
1159 |
|
_STD_END |
1160 |
|
|
1161 |
|
#ifdef _MSC_VER |
1162 |
|
#pragma warning(pop) |
1163 |
|
#pragma pack(pop) |
1164 |
|
#endif /* _MSC_VER */ |
1165 |
|
|
1166 |
|
#endif /* RC_INVOKED */ |
1167 |
|
#endif /* _ISTREAM_ */ |
1168 |
|
|
1169 |
|
/* |
1170 |
|
* Copyright (c) 1992-2006 by P.J. Plauger. ALL RIGHTS RESERVED. |
1171 |
|
* Consult your license regarding permissions and restrictions. |
1172 |
|
V5.02:0009 */ |
1173 |
|
|
|
|
|