libstdc++
stringfwd.h
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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 
43 namespace 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
basic_string< char32_t > u32string
A string of char16_t.
Definition: stringfwd.h:80
Managing sequences of characters and character-like objects.
Definition: basic_string.h:109