stringfwd.h

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00001 // String support -*- C++ -*-
00002 
00003 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
00004 // Free Software Foundation, Inc.
00005 //
00006 // This file is part of the GNU ISO C++ Library.  This library is free
00007 // software; you can redistribute it and/or modify it under the
00008 // terms of the GNU General Public License as published by the
00009 // Free Software Foundation; either version 3, or (at your option)
00010 // any later version.
00011 
00012 // This library is distributed in the hope that it will be useful,
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 // GNU General Public License for more details.
00016 
00017 // Under Section 7 of GPL version 3, you are granted additional
00018 // permissions described in the GCC Runtime Library Exception, version
00019 // 3.1, as published by the Free Software Foundation.
00020 
00021 // You should have received a copy of the GNU General Public License and
00022 // a copy of the GCC Runtime Library Exception along with this program;
00023 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00024 // <http://www.gnu.org/licenses/>.
00025 
00026 /** @file stringfwd.h
00027  *  This is an internal header file, included by other library headers.
00028  *  You should not attempt to use it directly.
00029  */
00030 
00031 //
00032 // ISO C++ 14882: 21 Strings library
00033 //
00034 
00035 #ifndef _STRINGFWD_H
00036 #define _STRINGFWD_H 1
00037 
00038 #pragma GCC system_header
00039 
00040 #include <bits/c++config.h>
00041 
00042 _GLIBCXX_BEGIN_NAMESPACE(std)
00043 
00044   template<typename _Alloc>
00045     class allocator;
00046 
00047   template<class _CharT>
00048     struct char_traits;
00049 
00050   template<typename _CharT, typename _Traits = char_traits<_CharT>,
00051            typename _Alloc = allocator<_CharT> >
00052     class basic_string;
00053 
00054   template<> struct char_traits<char>;
00055 
00056   typedef basic_string<char>    string;
00057 
00058 #ifdef _GLIBCXX_USE_WCHAR_T
00059   template<> struct char_traits<wchar_t>;
00060 
00061   typedef basic_string<wchar_t> wstring;
00062 #endif
00063 
00064 #if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
00065      && defined(_GLIBCXX_USE_C99_STDINT_TR1))
00066 
00067   template<> struct char_traits<char16_t>;
00068   template<> struct char_traits<char32_t>;
00069 
00070   typedef basic_string<char16_t> u16string;
00071   typedef basic_string<char32_t> u32string;
00072 
00073 #endif
00074 
00075 _GLIBCXX_END_NAMESPACE
00076 
00077 #endif  // _STRINGFWD_H

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