| // filebuf with encoding state type -*- C++ -*- |
| |
| // Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // USA. |
| |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| |
| /** @file ext/enc_filebuf.h |
| * This file is a GNU extension to the Standard C++ Library. |
| */ |
| |
| #ifndef _EXT_ENC_FILEBUF_H |
| #define _EXT_ENC_FILEBUF_H 1 |
| |
| #include <fstream> |
| #include <locale> |
| #include <ext/codecvt_specializations.h> |
| |
| _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) |
| |
| /// class enc_filebuf. |
| template<typename _CharT> |
| class enc_filebuf |
| : public std::basic_filebuf<_CharT, encoding_char_traits<_CharT> > |
| { |
| public: |
| typedef encoding_char_traits<_CharT> traits_type; |
| typedef typename traits_type::state_type state_type; |
| typedef typename traits_type::pos_type pos_type; |
| |
| enc_filebuf(state_type& __state) |
| : std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >() |
| { this->_M_state_beg = __state; } |
| |
| private: |
| // concept requirements: |
| // Set state type to something useful. |
| // Something more than copyconstructible is needed here, so |
| // require default and copy constructible + assignment operator. |
| __glibcxx_class_requires(state_type, _SGIAssignableConcept) |
| }; |
| |
| _GLIBCXX_END_NAMESPACE |
| |
| #endif |