| // Forwarding declarations -*- C++ -*- |
| |
| // Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003 |
| // 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // 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. |
| |
| // |
| // ISO C++ 14882: 27.2 Forward declarations |
| // |
| |
| /** @file iosfwd |
| * This is a Standard C++ Library header. |
| */ |
| |
| #ifndef _GLIBCXX_IOSFWD |
| #define _GLIBCXX_IOSFWD 1 |
| |
| #pragma GCC system_header |
| |
| #include <bits/c++config.h> |
| #include <bits/c++locale.h> |
| #include <bits/c++io.h> |
| #include <cctype> // For isspace, etc. |
| #include <bits/stringfwd.h> // For string forward declarations. |
| #include <bits/postypes.h> |
| #include <bits/functexcept.h> |
| |
| 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++/27_io/howto.html#10 |
| * |
| * @{ |
| */ |
| typedef basic_ios<char> ios; ///< @isiosfwd |
| typedef basic_streambuf<char> streambuf; ///< @isiosfwd |
| typedef basic_istream<char> istream; ///< @isiosfwd |
| typedef basic_ostream<char> ostream; ///< @isiosfwd |
| typedef basic_iostream<char> iostream; ///< @isiosfwd |
| typedef basic_stringbuf<char> stringbuf; ///< @isiosfwd |
| typedef basic_istringstream<char> istringstream; ///< @isiosfwd |
| typedef basic_ostringstream<char> ostringstream; ///< @isiosfwd |
| typedef basic_stringstream<char> stringstream; ///< @isiosfwd |
| typedef basic_filebuf<char> filebuf; ///< @isiosfwd |
| typedef basic_ifstream<char> ifstream; ///< @isiosfwd |
| typedef basic_ofstream<char> ofstream; ///< @isiosfwd |
| typedef basic_fstream<char> fstream; ///< @isiosfwd |
| |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| typedef basic_ios<wchar_t> wios; ///< @isiosfwd |
| typedef basic_streambuf<wchar_t> wstreambuf; ///< @isiosfwd |
| typedef basic_istream<wchar_t> wistream; ///< @isiosfwd |
| typedef basic_ostream<wchar_t> wostream; ///< @isiosfwd |
| typedef basic_iostream<wchar_t> wiostream; ///< @isiosfwd |
| typedef basic_stringbuf<wchar_t> wstringbuf; ///< @isiosfwd |
| typedef basic_istringstream<wchar_t> wistringstream; ///< @isiosfwd |
| typedef basic_ostringstream<wchar_t> wostringstream; ///< @isiosfwd |
| typedef basic_stringstream<wchar_t> wstringstream; ///< @isiosfwd |
| typedef basic_filebuf<wchar_t> wfilebuf; ///< @isiosfwd |
| typedef basic_ifstream<wchar_t> wifstream; ///< @isiosfwd |
| typedef basic_ofstream<wchar_t> wofstream; ///< @isiosfwd |
| typedef basic_fstream<wchar_t> wfstream; ///< @isiosfwd |
| #endif |
| /** @} */ |
| } // namespace std |
| |
| #endif /* _GLIBCXX_IOSFWD */ |
