// Forwarding declarations -*- C++ -*-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,// 2006, 2007// Free Software Foundation, Inc.//// This file is part of the GNU ISO C++ Library. This library is free// software; you can redistribute it and/or modify it under the// terms of the GNU General Public License as published by the// Free Software Foundation; either version 2, or (at your option)// any later version.// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.// You should have received a copy of the GNU General Public License// along with this library; see the file COPYING. If not, write to// the Free Software Foundation, 51 Franklin Street, Fifth Floor,// Boston, MA 02110-1301, USA.// As a special exception, you may use this file as part of a free software// library without restriction. Specifically, if other files instantiate// templates or use macros or inline functions from this file, or you compile// this file and link it with other files to produce an executable, this// file does not by itself cause the resulting executable to be covered by// the GNU General Public License. This exception does not however// invalidate any other reasons why the executable file might be covered by// the GNU General Public License./** @file iosfwd* This is a Standard C++ Library header.*///// ISO C++ 14882: 27.2 Forward declarations//#ifndef _GLIBCXX_IOSFWD#define _GLIBCXX_IOSFWD 1#pragma GCC system_header#include <bits/c++config.h>#include <bits/stringfwd.h> // For string forward declarations.#include <bits/postypes.h>_GLIBCXX_BEGIN_NAMESPACE(std)template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_ios;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_streambuf;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_istream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_ostream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_iostream;template<typename _CharT, typename _Traits = char_traits<_CharT>,typename _Alloc = allocator<_CharT> >class basic_stringbuf;template<typename _CharT, typename _Traits = char_traits<_CharT>,typename _Alloc = allocator<_CharT> >class basic_istringstream;template<typename _CharT, typename _Traits = char_traits<_CharT>,typename _Alloc = allocator<_CharT> >class basic_ostringstream;template<typename _CharT, typename _Traits = char_traits<_CharT>,typename _Alloc = allocator<_CharT> >class basic_stringstream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_filebuf;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_ifstream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_ofstream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class basic_fstream;template<typename _CharT, typename _Traits = char_traits<_CharT> >class istreambuf_iterator;template<typename _CharT, typename _Traits = char_traits<_CharT> >class ostreambuf_iterator;// _GLIBCXX_RESOLVE_LIB_DEFECTS// Not included. (??? Apparently no LWG number?)class ios_base;/*** @defgroup s27_2_iosfwd I/O Forward Declarations** Nearly all of the I/O classes are parameterized on the type of* characters they read and write. (The major exception is ios_base at* the top of the hierarchy.) This is a change from pre-Standard* streams, which were not templates.** For ease of use and compatibility, all of the basic_* I/O-related* classes are given typedef names for both of the builtin character* widths (wide and narrow). The typedefs are the same as the* pre-Standard names, for example:** @code* typedef basic_ifstream<char> ifstream;* @endcode** Because properly forward-declaring these classes can be difficult, you* should not do it yourself. Instead, include the <iosfwd>* header, which contains only declarations of all the I/O classes as* well as the typedefs. Trying to forward-declare the typedefs* themselves (e.g., "class ostream;") is not valid ISO C++.** For more specific declarations, see* http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html** @{*/typedef basic_ios<char> ios; ///< @isiosfwdtypedef basic_streambuf<char> streambuf; ///< @isiosfwdtypedef basic_istream<char> istream; ///< @isiosfwdtypedef basic_ostream<char> ostream; ///< @isiosfwdtypedef basic_iostream<char> iostream; ///< @isiosfwdtypedef basic_stringbuf<char> stringbuf; ///< @isiosfwdtypedef basic_istringstream<char> istringstream; ///< @isiosfwdtypedef basic_ostringstream<char> ostringstream; ///< @isiosfwdtypedef basic_stringstream<char> stringstream; ///< @isiosfwdtypedef basic_filebuf<char> filebuf; ///< @isiosfwdtypedef basic_ifstream<char> ifstream; ///< @isiosfwdtypedef basic_ofstream<char> ofstream; ///< @isiosfwdtypedef basic_fstream<char> fstream; ///< @isiosfwd#ifdef _GLIBCXX_USE_WCHAR_Ttypedef basic_ios<wchar_t> wios; ///< @isiosfwdtypedef basic_streambuf<wchar_t> wstreambuf; ///< @isiosfwdtypedef basic_istream<wchar_t> wistream; ///< @isiosfwdtypedef basic_ostream<wchar_t> wostream; ///< @isiosfwdtypedef basic_iostream<wchar_t> wiostream; ///< @isiosfwdtypedef basic_stringbuf<wchar_t> wstringbuf; ///< @isiosfwdtypedef basic_istringstream<wchar_t> wistringstream; ///< @isiosfwdtypedef basic_ostringstream<wchar_t> wostringstream; ///< @isiosfwdtypedef basic_stringstream<wchar_t> wstringstream; ///< @isiosfwdtypedef basic_filebuf<wchar_t> wfilebuf; ///< @isiosfwdtypedef basic_ifstream<wchar_t> wifstream; ///< @isiosfwdtypedef basic_ofstream<wchar_t> wofstream; ///< @isiosfwdtypedef basic_fstream<wchar_t> wfstream; ///< @isiosfwd#endif/** @} */_GLIBCXX_END_NAMESPACE#endif /* _GLIBCXX_IOSFWD */