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d001ce5f | 1 | // filebuf with encoding state type -*- C++ -*- |
2 | ||
fbd26352 | 3 | // Copyright (C) 2002-2019 Free Software Foundation, Inc. |
d001ce5f | 4 | // |
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 | |
6bc9506f | 8 | // Free Software Foundation; either version 3, or (at your option) |
d001ce5f | 9 | // any later version. |
10 | ||
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. | |
15 | ||
6bc9506f | 16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
d001ce5f | 19 | |
6bc9506f | 20 | // You should have received a copy of the GNU General Public License and |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
d001ce5f | 24 | |
25 | /** @file ext/enc_filebuf.h | |
26 | * This file is a GNU extension to the Standard C++ Library. | |
27 | */ | |
28 | ||
29 | #ifndef _EXT_ENC_FILEBUF_H | |
30 | #define _EXT_ENC_FILEBUF_H 1 | |
31 | ||
32 | #include <fstream> | |
33 | #include <locale> | |
34 | #include <ext/codecvt_specializations.h> | |
35 | ||
2948dd21 | 36 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) |
37 | { | |
38 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
d001ce5f | 39 | |
4a77b438 | 40 | /// class enc_filebuf. |
d001ce5f | 41 | template<typename _CharT> |
42 | class enc_filebuf | |
43 | : public std::basic_filebuf<_CharT, encoding_char_traits<_CharT> > | |
44 | { | |
45 | public: | |
46 | typedef encoding_char_traits<_CharT> traits_type; | |
47 | typedef typename traits_type::state_type state_type; | |
48 | typedef typename traits_type::pos_type pos_type; | |
49 | ||
50 | enc_filebuf(state_type& __state) | |
51 | : std::basic_filebuf<_CharT, encoding_char_traits<_CharT> >() | |
52 | { this->_M_state_beg = __state; } | |
53 | ||
54 | private: | |
55 | // concept requirements: | |
56 | // Set state type to something useful. | |
57 | // Something more than copyconstructible is needed here, so | |
58 | // require default and copy constructible + assignment operator. | |
59 | __glibcxx_class_requires(state_type, _SGIAssignableConcept) | |
60 | }; | |
61 | ||
2948dd21 | 62 | _GLIBCXX_END_NAMESPACE_VERSION |
63 | } // namespace | |
d001ce5f | 64 | |
65 | #endif |