66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
// filebuf with encoding state type -*- C++ -*-
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// Copyright (C) 2002-2019 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 3, 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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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file ext/enc_filebuf.h
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* This file is a GNU extension to the Standard C++ Library.
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*/
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#ifndef _EXT_ENC_FILEBUF_H
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#define _EXT_ENC_FILEBUF_H 1
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#include <fstream>
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#include <locale>
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#include <ext/codecvt_specializations.h>
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namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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/// class enc_filebuf.
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template<typename _CharT>
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class enc_filebuf
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: public std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >
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{
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public:
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typedef encoding_char_traits<_CharT> traits_type;
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typedef typename traits_type::state_type state_type;
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typedef typename traits_type::pos_type pos_type;
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enc_filebuf(state_type& __state)
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: std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >()
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{ this->_M_state_beg = __state; }
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private:
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// concept requirements:
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// Set state type to something useful.
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// Something more than copyconstructible is needed here, so
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// require default and copy constructible + assignment operator.
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__glibcxx_class_requires(state_type, _SGIAssignableConcept)
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};
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace
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#endif
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