# 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.  You should @c #include this header
    00036  *  in your programs, rather than any of the "st[dl]_*.h" implementation files.
    00037  */
    00038
    00039 #ifndef _GLIBCXX_IOSTREAM
    00040 #define _GLIBCXX_IOSTREAM 1
    00041
    00042 #pragma GCC system_header
    00043
    00044 #include <bits/c++config.h>
    00045 #include <ostream>
    00046 #include <istream>
    00047
    00048 namespace std
    00049 {
    00050   /**
    00051    *  @name Standard Stream Objects
    00052    *
    00053    *  The &lt;iostream&gt; header declares the eight <em>standard stream
    00054    *  objects</em>.  For other declarations, see
    00055    *  http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 and the
    00056    *  @link s27_2_iosfwd I/O forward declarations @endlink
    00057    *
    00058    *  They are required by default to cooperate with the global C library's
    00059    *  @c FILE streams, and to be available during program startup and
    00060    *  termination.  For more information, see the HOWTO linked to above.
    00061   */
    00062   //@{
    00063   extern istream cin;       ///< Linked to standard input
    00064   extern ostream cout;      ///< Linked to standard output
    00065   extern ostream cerr;      ///< Linked to standard error (unbuffered)
    00066   extern ostream clog;      ///< Linked to standard error (buffered)
    00067
    00068 #ifdef _GLIBCXX_USE_WCHAR_T
    00069   extern wistream wcin;     ///< Linked to standard input
    00070   extern wostream wcout;    ///< Linked to standard output
    00071   extern wostream wcerr;    ///< Linked to standard error (unbuffered)
    00072   extern wostream wclog;    ///< Linked to standard error (buffered)
    00073 #endif
    00074   //@}
    00075
    00076   // For construction of filebuffers for cout, cin, cerr, clog et. al.
    00077   static ios_base::Init __ioinit;
    00078 } // namespace std
    00079
    00080 #endif /* _GLIBCXX_IOSTREAM */