source: Daodan/MSYS2/mingw32/include/c++/11.2.0/ext/enc_filebuf.h@ 1171

Last change on this file since 1171 was 1166, checked in by rossy, 3 years ago

Daodan: Replace MinGW build env with an up-to-date MSYS2 env

File size: 2.2 KB
RevLine 
[1166]1// filebuf with encoding state type -*- C++ -*-
2
3// Copyright (C) 2002-2021 Free Software Foundation, Inc.
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
8// Free Software Foundation; either version 3, or (at your option)
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
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.
19
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/>.
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
36namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
37{
38_GLIBCXX_BEGIN_NAMESPACE_VERSION
39
40 /// class enc_filebuf.
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
62_GLIBCXX_END_NAMESPACE_VERSION
63} // namespace
64
65#endif
Note: See TracBrowser for help on using the repository browser.