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// 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, 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.

//

// 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 */