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