1// String support -*- C++ -*-
2
3// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
4// 2010
5// Free Software Foundation, Inc.
6//
7// This file is part of the GNU ISO C++ Library. This library is free
8// software; you can redistribute it and/or modify it under the
9// terms of the GNU General Public License as published by the
10// Free Software Foundation; either version 3, or (at your option)
11// any later version.
12
13// This library is distributed in the hope that it will be useful,
14// but WITHOUT ANY WARRANTY; without even the implied warranty of
15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16// GNU General Public License for more details.
17
18// Under Section 7 of GPL version 3, you are granted additional
19// permissions described in the GCC Runtime Library Exception, version
20// 3.1, as published by the Free Software Foundation.
21
22// You should have received a copy of the GNU General Public License and
23// a copy of the GCC Runtime Library Exception along with this program;
24// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
25// <http://www.gnu.org/licenses/>.
26
27/** @file bits/stringfwd.h
28 * This is an internal header file, included by other library headers.
29 * Do not attempt to use it directly. @headername{string}
30 */
31
32//
33// ISO C++ 14882: 21 Strings library
34//
35
36#ifndef _STRINGFWD_H
37#define _STRINGFWD_H 1
38
39#pragma GCC system_header
40
41#include <bits/c++config.h>
42
43namespace std _GLIBCXX_VISIBILITY(default)
44{
45_GLIBCXX_BEGIN_NAMESPACE_VERSION
46
47 template<typename _Alloc>
48 class allocator;
49
50 /**
51 * @defgroup strings Strings
52 *
53 * @{
54 */
55
56 template<class _CharT>
57 struct char_traits;
58
59 template<typename _CharT, typename _Traits = char_traits<_CharT>,
60 typename _Alloc = allocator<_CharT> >
61 class basic_string;
62
63 template<> struct char_traits<char>;
64
65 typedef basic_string<char> string; /// A string of @c char
66
67#ifdef _GLIBCXX_USE_WCHAR_T
68 template<> struct char_traits<wchar_t>;
69
70 typedef basic_string<wchar_t> wstring; /// A string of @c wchar_t
71#endif
72
73#if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
74 && defined(_GLIBCXX_USE_C99_STDINT_TR1))
75
76 template<> struct char_traits<char16_t>;
77 template<> struct char_traits<char32_t>;
78
79 typedef basic_string<char16_t> u16string; /// A string of @c char16_t
80 typedef basic_string<char32_t> u32string; /// A string of @c char32_t
81
82#endif
83 /** @} */
84
85_GLIBCXX_END_NAMESPACE_VERSION
86} // namespace
87
88#endif // _STRINGFWD_H
89