# iostream

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    00001 // Standard iostream objects -*- C++ -*-
    00002
    00003 // Copyright (C) 1997, 1998, 1999, 2001, 2002 Free Software Foundation, Inc.
    00004 //
    00005 // This file is part of the GNU ISO C++ Library.  This library is free
    00006 // software; you can redistribute it and/or modify it under the
    00007 // terms of the GNU General Public License as published by the
    00008 // Free Software Foundation; either version 2, or (at your option)
    00009 // any later version.
    00010
    00011 // This library is distributed in the hope that it will be useful,
    00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00014 // GNU General Public License for more details.
    00015
    00016 // You should have received a copy of the GNU General Public License along
    00017 // with this library; see the file COPYING.  If not, write to the Free
    00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    00019 // USA.
    00020
    00021 // As a special exception, you may use this file as part of a free software
    00022 // library without restriction.  Specifically, if other files instantiate
    00023 // templates or use macros or inline functions from this file, or you compile
    00024 // this file and link it with other files to produce an executable, this
    00025 // file does not by itself cause the resulting executable to be covered by
    00026 // the GNU General Public License.  This exception does not however
    00027 // invalidate any other reasons why the executable file might be covered by
    00028 // the GNU General Public License.
    00029
    00030 //
    00031 // ISO C++ 14882: 27.3  Standard iostream objects
    00032 //
    00033
    00034 /** @file iostream
    00035  *  This is a Standard C++ Library header.
    00036  */
    00037
    00038 #ifndef _GLIBCXX_IOSTREAM
    00039 #define _GLIBCXX_IOSTREAM 1
    00040
    00041 #pragma GCC system_header
    00042
    00043 #include <bits/c++config.h>
    00044 #include <ostream>
    00045 #include <istream>
    00046
    00047 namespace std
    00048 {
    00049   /**
    00050    *  @name Standard Stream Objects
    00051    *
    00052    *  The &lt;iostream&gt; header declares the eight <em>standard stream
    00053    *  objects</em>.  For other declarations, see
    00054    *  http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 and the
    00055    *  @link s27_2_iosfwd I/O forward declarations @endlink
    00056    *
    00057    *  They are required by default to cooperate with the global C library's
    00058    *  @c FILE streams, and to be available during program startup and
    00059    *  termination.  For more information, see the HOWTO linked to above.
    00060   */
    00061   //@{
    00062   extern istream cin;       ///< Linked to standard input
    00063   extern ostream cout;      ///< Linked to standard output
    00064   extern ostream cerr;      ///< Linked to standard error (unbuffered)
    00065   extern ostream clog;      ///< Linked to standard error (buffered)
    00066
    00067 #ifdef _GLIBCXX_USE_WCHAR_T
    00068   extern wistream wcin;     ///< Linked to standard input
    00069   extern wostream wcout;    ///< Linked to standard output
    00070   extern wostream wcerr;    ///< Linked to standard error (unbuffered)
    00071   extern wostream wclog;    ///< Linked to standard error (buffered)
    00072 #endif
    00073   //@}
    00074
    00075   // For construction of filebuffers for cout, cin, cerr, clog et. al.
    00076   static ios_base::Init __ioinit;
    00077 } // namespace std
    00078
    00079 #endif /* _GLIBCXX_IOSTREAM */