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Eagle517
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TBE/MinGW/include/c++/3.2.3/istream
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TBE/MinGW/include/c++/3.2.3/istream
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// Input streams -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2001, 2002 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 27.6.1 Input streams
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//
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/** @file istream
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* This is a Standard C++ Library header. You should @c #include this header
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* in your programs, rather than any of the "st[dl]_*.h" implementation files.
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*/
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#ifndef _CPP_ISTREAM
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#define _CPP_ISTREAM 1
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#pragma GCC system_header
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#include <ios>
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#include <limits> // For numeric_limits
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namespace std
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{
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// 27.6.1.1 Template class basic_istream
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template<typename _CharT, typename _Traits>
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class basic_istream : virtual public basic_ios<_CharT, _Traits>
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{
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public:
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// Types (inherited from basic_ios (27.4.4)):
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typedef _CharT char_type;
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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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typedef _Traits traits_type;
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// Non-standard Types:
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typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
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typedef basic_ios<_CharT, _Traits> __ios_type;
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typedef basic_istream<_CharT, _Traits> __istream_type;
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typedef istreambuf_iterator<_CharT, _Traits> __istreambuf_iter;
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typedef num_get<_CharT, __istreambuf_iter> __numget_type;
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typedef ctype<_CharT> __ctype_type;
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protected:
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// Data Members:
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streamsize _M_gcount;
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public:
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// 27.6.1.1.1 Constructor/destructor:
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explicit
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basic_istream(__streambuf_type* __sb)
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{
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this->init(__sb);
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_M_gcount = streamsize(0);
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}
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virtual
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~basic_istream()
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{ _M_gcount = streamsize(0); }
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// 27.6.1.1.2 Prefix/suffix:
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class sentry;
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friend class sentry;
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// 27.6.1.2 Formatted input:
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// 27.6.1.2.3 basic_istream::operator>>
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__istream_type&
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operator>>(__istream_type& (*__pf)(__istream_type&));
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__istream_type&
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operator>>(__ios_type& (*__pf)(__ios_type&));
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__istream_type&
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operator>>(ios_base& (*__pf)(ios_base&));
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// 27.6.1.2.2 Arithmetic Extractors
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__istream_type&
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operator>>(bool& __n);
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__istream_type&
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operator>>(short& __n);
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__istream_type&
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operator>>(unsigned short& __n);
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__istream_type&
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operator>>(int& __n);
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__istream_type&
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operator>>(unsigned int& __n);
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__istream_type&
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operator>>(long& __n);
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__istream_type&
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operator>>(unsigned long& __n);
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#ifdef _GLIBCPP_USE_LONG_LONG
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__istream_type&
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operator>>(long long& __n);
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__istream_type&
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operator>>(unsigned long long& __n);
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#endif
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__istream_type&
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operator>>(float& __f);
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__istream_type&
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operator>>(double& __f);
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__istream_type&
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operator>>(long double& __f);
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__istream_type&
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operator>>(void*& __p);
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__istream_type&
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operator>>(__streambuf_type* __sb);
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// 27.6.1.3 Unformatted input:
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inline streamsize
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gcount(void) const
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{ return _M_gcount; }
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int_type
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get(void);
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__istream_type&
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get(char_type& __c);
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__istream_type&
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get(char_type* __s, streamsize __n, char_type __delim);
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inline __istream_type&
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get(char_type* __s, streamsize __n)
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{ return this->get(__s, __n, this->widen('\n')); }
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__istream_type&
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get(__streambuf_type& __sb, char_type __delim);
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inline __istream_type&
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get(__streambuf_type& __sb)
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{ return this->get(__sb, this->widen('\n')); }
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__istream_type&
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getline(char_type* __s, streamsize __n, char_type __delim);
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inline __istream_type&
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getline(char_type* __s, streamsize __n)
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{ return this->getline(__s, __n, this->widen('\n')); }
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__istream_type&
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ignore(streamsize __n = 1, int_type __delim = traits_type::eof());
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int_type
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peek(void);
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__istream_type&
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read(char_type* __s, streamsize __n);
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streamsize
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readsome(char_type* __s, streamsize __n);
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__istream_type&
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putback(char_type __c);
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__istream_type&
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unget(void);
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int
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sync(void);
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pos_type
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tellg(void);
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__istream_type&
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seekg(pos_type);
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__istream_type&
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seekg(off_type, ios_base::seekdir);
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};
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template<typename _CharT, typename _Traits>
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class basic_istream<_CharT, _Traits>::sentry
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{
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public:
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typedef _Traits traits_type;
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typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
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typedef basic_istream<_CharT, _Traits> __istream_type;
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typedef typename __istream_type::__ctype_type __ctype_type;
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typedef typename _Traits::int_type __int_type;
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explicit
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sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false);
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operator bool() { return _M_ok; }
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private:
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bool _M_ok;
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};
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// 27.6.1.2.3 Character extraction templates
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template<typename _CharT, typename _Traits>
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basic_istream<_CharT, _Traits>&
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operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c);
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template<class _Traits>
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basic_istream<char, _Traits>&
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operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
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{ return (__in >> reinterpret_cast<char&>(__c)); }
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template<class _Traits>
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basic_istream<char, _Traits>&
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operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
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{ return (__in >> reinterpret_cast<char&>(__c)); }
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template<typename _CharT, typename _Traits>
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basic_istream<_CharT, _Traits>&
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operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s);
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template<class _Traits>
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basic_istream<char,_Traits>&
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operator>>(basic_istream<char,_Traits>& __in, unsigned char* __s)
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{ return (__in >> reinterpret_cast<char*>(__s)); }
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template<class _Traits>
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basic_istream<char,_Traits>&
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operator>>(basic_istream<char,_Traits>& __in, signed char* __s)
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{ return (__in >> reinterpret_cast<char*>(__s)); }
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// 27.6.1.5 Template class basic_iostream
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template<typename _CharT, typename _Traits>
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class basic_iostream
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: public basic_istream<_CharT, _Traits>,
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public basic_ostream<_CharT, _Traits>
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{
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public:
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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// 271. basic_iostream missing typedefs
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// Types (inherited):
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typedef _CharT char_type;
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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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typedef _Traits traits_type;
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#endif
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// Non-standard Types:
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typedef basic_istream<_CharT, _Traits> __istream_type;
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typedef basic_ostream<_CharT, _Traits> __ostream_type;
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explicit
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basic_iostream(basic_streambuf<_CharT, _Traits>* __sb)
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: __istream_type(__sb), __ostream_type(__sb)
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{ }
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virtual
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~basic_iostream() { }
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};
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// 27.6.1.4 Standard basic_istream manipulators
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template<typename _CharT, typename _Traits>
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basic_istream<_CharT, _Traits>&
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ws(basic_istream<_CharT, _Traits>& __is);
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} // namespace std
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#ifdef _GLIBCPP_NO_TEMPLATE_EXPORT
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# define export
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#endif
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#ifdef _GLIBCPP_FULLY_COMPLIANT_HEADERS
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# include <bits/istream.tcc>
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#endif
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#endif /* _CPP_ISTREAM */
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