libstdc++
stringfwd.h
Go to the documentation of this file.
1 // String support -*- C++ -*-
2 
3 // Copyright (C) 2001-2013 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 bits/stringfwd.h
26  * This is an internal header file, included by other library headers.
27  * Do not attempt to use it directly. @headername{string}
28  */
29 
30 //
31 // ISO C++ 14882: 21 Strings library
32 //
33 
34 #ifndef _STRINGFWD_H
35 #define _STRINGFWD_H 1
36 
37 #pragma GCC system_header
38 
39 #include <bits/c++config.h>
40 
41 namespace std _GLIBCXX_VISIBILITY(default)
42 {
43 _GLIBCXX_BEGIN_NAMESPACE_VERSION
44 
45  template<typename _Alloc>
46  class allocator;
47 
48  /**
49  * @defgroup strings Strings
50  *
51  * @{
52  */
53 
54  template<class _CharT>
55  struct char_traits;
56 
57  template<typename _CharT, typename _Traits = char_traits<_CharT>,
58  typename _Alloc = allocator<_CharT> >
59  class basic_string;
60 
61  template<> struct char_traits<char>;
62 
63  /// A string of @c char
65 
66 #ifdef _GLIBCXX_USE_WCHAR_T
67  template<> struct char_traits<wchar_t>;
68 
69  /// A string of @c wchar_t
71 #endif
72 
73 #if ((__cplusplus >= 201103L) \
74  && defined(_GLIBCXX_USE_C99_STDINT_TR1))
75 
76  template<> struct char_traits<char16_t>;
77  template<> struct char_traits<char32_t>;
78 
79  /// A string of @c char16_t
81 
82  /// A string of @c char32_t
84 
85 #endif
86  /** @} */
87 
88 _GLIBCXX_END_NAMESPACE_VERSION
89 } // namespace std
90 
91 #endif // _STRINGFWD_H