1*38fd1498Szrj // filebuf with encoding state type -*- C++ -*-
2*38fd1498Szrj
3*38fd1498Szrj // Copyright (C) 2002-2018 Free Software Foundation, Inc.
4*38fd1498Szrj //
5*38fd1498Szrj // This file is part of the GNU ISO C++ Library. This library is free
6*38fd1498Szrj // software; you can redistribute it and/or modify it under the
7*38fd1498Szrj // terms of the GNU General Public License as published by the
8*38fd1498Szrj // Free Software Foundation; either version 3, or (at your option)
9*38fd1498Szrj // any later version.
10*38fd1498Szrj
11*38fd1498Szrj // This library is distributed in the hope that it will be useful,
12*38fd1498Szrj // but WITHOUT ANY WARRANTY; without even the implied warranty of
13*38fd1498Szrj // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14*38fd1498Szrj // GNU General Public License for more details.
15*38fd1498Szrj
16*38fd1498Szrj // Under Section 7 of GPL version 3, you are granted additional
17*38fd1498Szrj // permissions described in the GCC Runtime Library Exception, version
18*38fd1498Szrj // 3.1, as published by the Free Software Foundation.
19*38fd1498Szrj
20*38fd1498Szrj // You should have received a copy of the GNU General Public License and
21*38fd1498Szrj // a copy of the GCC Runtime Library Exception along with this program;
22*38fd1498Szrj // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23*38fd1498Szrj // <http://www.gnu.org/licenses/>.
24*38fd1498Szrj
25*38fd1498Szrj /** @file ext/enc_filebuf.h
26*38fd1498Szrj * This file is a GNU extension to the Standard C++ Library.
27*38fd1498Szrj */
28*38fd1498Szrj
29*38fd1498Szrj #ifndef _EXT_ENC_FILEBUF_H
30*38fd1498Szrj #define _EXT_ENC_FILEBUF_H 1
31*38fd1498Szrj
32*38fd1498Szrj #include <fstream>
33*38fd1498Szrj #include <locale>
34*38fd1498Szrj #include <ext/codecvt_specializations.h>
35*38fd1498Szrj
_GLIBCXX_VISIBILITY(default)36*38fd1498Szrj namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
37*38fd1498Szrj {
38*38fd1498Szrj _GLIBCXX_BEGIN_NAMESPACE_VERSION
39*38fd1498Szrj
40*38fd1498Szrj /// class enc_filebuf.
41*38fd1498Szrj template<typename _CharT>
42*38fd1498Szrj class enc_filebuf
43*38fd1498Szrj : public std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >
44*38fd1498Szrj {
45*38fd1498Szrj public:
46*38fd1498Szrj typedef encoding_char_traits<_CharT> traits_type;
47*38fd1498Szrj typedef typename traits_type::state_type state_type;
48*38fd1498Szrj typedef typename traits_type::pos_type pos_type;
49*38fd1498Szrj
50*38fd1498Szrj enc_filebuf(state_type& __state)
51*38fd1498Szrj : std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >()
52*38fd1498Szrj { this->_M_state_beg = __state; }
53*38fd1498Szrj
54*38fd1498Szrj private:
55*38fd1498Szrj // concept requirements:
56*38fd1498Szrj // Set state type to something useful.
57*38fd1498Szrj // Something more than copyconstructible is needed here, so
58*38fd1498Szrj // require default and copy constructible + assignment operator.
59*38fd1498Szrj __glibcxx_class_requires(state_type, _SGIAssignableConcept)
60*38fd1498Szrj };
61*38fd1498Szrj
62*38fd1498Szrj _GLIBCXX_END_NAMESPACE_VERSION
63*38fd1498Szrj } // namespace
64*38fd1498Szrj
65*38fd1498Szrj #endif
66