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 89
