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// Forwarding declarations -*- C++ -*-

// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,

// 2006, 2007, 2009, 2010

// 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// .

/** @file include/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 

#include        // For string forward declarations.

#include 

namespace std _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION

  /**

   *  @defgroup io I/O

   *

   *  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  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

   *

   *  @{

  */

  class ios_base;

  template >

    class basic_ios;

  template >

    class basic_streambuf;

  template >

    class basic_istream;

  template >

    class basic_ostream;

  template >

    class basic_iostream;

  template,

            typename _Alloc = allocator<_CharT> >

    class basic_stringbuf;

  template,

           typename _Alloc = allocator<_CharT> >

    class basic_istringstream;

  template,

           typename _Alloc = allocator<_CharT> >

    class basic_ostringstream;

  template,

           typename _Alloc = allocator<_CharT> >

    class basic_stringstream;

  template >

    class basic_filebuf;

  template >

    class basic_ifstream;

  template >

    class basic_ofstream;

  template >

    class basic_fstream;

  template >

    class istreambuf_iterator;

  template >

    class ostreambuf_iterator;

  /// Base class for @c char streams.

  typedef basic_ios             ios;

  /// Base class for @c char buffers.

  typedef basic_streambuf       streambuf;

  /// Base class for @c char input streams.

  typedef basic_istream                 istream;

  /// Base class for @c char output streams.

  typedef basic_ostream                 ostream;

  /// Base class for @c char mixed input and output streams.

  typedef basic_iostream                iostream;

  /// Class for @c char memory buffers.

  typedef basic_stringbuf       stringbuf;

  /// Class for @c char input memory streams.

  typedef basic_istringstream   istringstream;

  /// Class for @c char output memory streams.

  typedef basic_ostringstream   ostringstream;

  /// Class for @c char mixed input and output memory streams.

  typedef basic_stringstream    stringstream;

  /// Class for @c char file buffers.

  typedef basic_filebuf                 filebuf;

  /// Class for @c char input file streams.

  typedef basic_ifstream                ifstream;

  /// Class for @c char output file streams.

  typedef basic_ofstream                ofstream;

  /// Class for @c char mixed input and output file streams.

  typedef basic_fstream                 fstream;

#ifdef _GLIBCXX_USE_WCHAR_T

  /// Base class for @c wchar_t streams.

  typedef basic_ios             wios;

  /// Base class for @c wchar_t buffers.

  typedef basic_streambuf       wstreambuf;

  /// Base class for @c wchar_t input streams.

  typedef basic_istream         wistream;

  /// Base class for @c wchar_t output streams.

  typedef basic_ostream         wostream;

  /// Base class for @c wchar_t mixed input and output streams.

  typedef basic_iostream        wiostream;

  /// Class for @c wchar_t memory buffers.

  typedef basic_stringbuf       wstringbuf;

  /// Class for @c wchar_t input memory streams.

  typedef basic_istringstream   wistringstream;

  /// Class for @c wchar_t output memory streams.

  typedef basic_ostringstream   wostringstream;

  /// Class for @c wchar_t mixed input and output memory streams.

  typedef basic_stringstream    wstringstream;

  /// Class for @c wchar_t file buffers.

  typedef basic_filebuf         wfilebuf;

  /// Class for @c wchar_t input file streams.

  typedef basic_ifstream        wifstream;

  /// Class for @c wchar_t output file streams.

  typedef basic_ofstream        wofstream;

  /// Class for @c wchar_t mixed input and output file streams.

  typedef basic_fstream         wfstream;

#endif

  /** @}  */

_GLIBCXX_END_NAMESPACE_VERSION

} // namespace

#endif /* _GLIBCXX_IOSFWD */