1*38fd1498Szrj // <string> Forward declarations -*- C++ -*-
2*38fd1498Szrj
3*38fd1498Szrj // Copyright (C) 2001-2018 Free Software Foundation, Inc.
4*38fd1498Szrj //
5*38fd1498Szrj // This file is part of the GNU ISO C++ Library. This library is free
6*38fd1498Szrj // software; you can redistribute it and/or modify it under the
7*38fd1498Szrj // terms of the GNU General Public License as published by the
8*38fd1498Szrj // Free Software Foundation; either version 3, or (at your option)
9*38fd1498Szrj // any later version.
10*38fd1498Szrj
11*38fd1498Szrj // This library is distributed in the hope that it will be useful,
12*38fd1498Szrj // but WITHOUT ANY WARRANTY; without even the implied warranty of
13*38fd1498Szrj // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14*38fd1498Szrj // GNU General Public License for more details.
15*38fd1498Szrj
16*38fd1498Szrj // Under Section 7 of GPL version 3, you are granted additional
17*38fd1498Szrj // permissions described in the GCC Runtime Library Exception, version
18*38fd1498Szrj // 3.1, as published by the Free Software Foundation.
19*38fd1498Szrj
20*38fd1498Szrj // You should have received a copy of the GNU General Public License and
21*38fd1498Szrj // a copy of the GCC Runtime Library Exception along with this program;
22*38fd1498Szrj // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23*38fd1498Szrj // <http://www.gnu.org/licenses/>.
24*38fd1498Szrj
25*38fd1498Szrj /** @file bits/stringfwd.h
26*38fd1498Szrj * This is an internal header file, included by other library headers.
27*38fd1498Szrj * Do not attempt to use it directly. @headername{string}
28*38fd1498Szrj */
29*38fd1498Szrj
30*38fd1498Szrj //
31*38fd1498Szrj // ISO C++ 14882: 21 Strings library
32*38fd1498Szrj //
33*38fd1498Szrj
34*38fd1498Szrj #ifndef _STRINGFWD_H
35*38fd1498Szrj #define _STRINGFWD_H 1
36*38fd1498Szrj
37*38fd1498Szrj #pragma GCC system_header
38*38fd1498Szrj
39*38fd1498Szrj #include <bits/c++config.h>
40*38fd1498Szrj #include <bits/memoryfwd.h>
41*38fd1498Szrj
_GLIBCXX_VISIBILITY(default)42*38fd1498Szrj namespace std _GLIBCXX_VISIBILITY(default)
43*38fd1498Szrj {
44*38fd1498Szrj _GLIBCXX_BEGIN_NAMESPACE_VERSION
45*38fd1498Szrj
46*38fd1498Szrj /**
47*38fd1498Szrj * @defgroup strings Strings
48*38fd1498Szrj *
49*38fd1498Szrj * @{
50*38fd1498Szrj */
51*38fd1498Szrj
52*38fd1498Szrj template<class _CharT>
53*38fd1498Szrj struct char_traits;
54*38fd1498Szrj
55*38fd1498Szrj template<> struct char_traits<char>;
56*38fd1498Szrj
57*38fd1498Szrj #ifdef _GLIBCXX_USE_WCHAR_T
58*38fd1498Szrj template<> struct char_traits<wchar_t>;
59*38fd1498Szrj #endif
60*38fd1498Szrj
61*38fd1498Szrj #if ((__cplusplus >= 201103L) \
62*38fd1498Szrj && defined(_GLIBCXX_USE_C99_STDINT_TR1))
63*38fd1498Szrj template<> struct char_traits<char16_t>;
64*38fd1498Szrj template<> struct char_traits<char32_t>;
65*38fd1498Szrj #endif
66*38fd1498Szrj
67*38fd1498Szrj _GLIBCXX_BEGIN_NAMESPACE_CXX11
68*38fd1498Szrj
69*38fd1498Szrj template<typename _CharT, typename _Traits = char_traits<_CharT>,
70*38fd1498Szrj typename _Alloc = allocator<_CharT> >
71*38fd1498Szrj class basic_string;
72*38fd1498Szrj
73*38fd1498Szrj /// A string of @c char
74*38fd1498Szrj typedef basic_string<char> string;
75*38fd1498Szrj
76*38fd1498Szrj #ifdef _GLIBCXX_USE_WCHAR_T
77*38fd1498Szrj /// A string of @c wchar_t
78*38fd1498Szrj typedef basic_string<wchar_t> wstring;
79*38fd1498Szrj #endif
80*38fd1498Szrj
81*38fd1498Szrj #if ((__cplusplus >= 201103L) \
82*38fd1498Szrj && defined(_GLIBCXX_USE_C99_STDINT_TR1))
83*38fd1498Szrj /// A string of @c char16_t
84*38fd1498Szrj typedef basic_string<char16_t> u16string;
85*38fd1498Szrj
86*38fd1498Szrj /// A string of @c char32_t
87*38fd1498Szrj typedef basic_string<char32_t> u32string;
88*38fd1498Szrj #endif
89*38fd1498Szrj
90*38fd1498Szrj _GLIBCXX_END_NAMESPACE_CXX11
91*38fd1498Szrj
92*38fd1498Szrj /** @} */
93*38fd1498Szrj
94*38fd1498Szrj _GLIBCXX_END_NAMESPACE_VERSION
95*38fd1498Szrj } // namespace std
96*38fd1498Szrj
97*38fd1498Szrj #endif // _STRINGFWD_H
98