1                 : // Standard iostream objects -*- C++ -*-
       2                 : 
       3                 : // Copyright (C) 1997, 1998, 1999, 2001, 2002, 2005, 2008, 2009, 2010
       4                 : // Free Software Foundation, Inc.
       5                 : //
       6                 : // This file is part of the GNU ISO C++ Library.  This library is free
       7                 : // software; you can redistribute it and/or modify it under the
       8                 : // terms of the GNU General Public License as published by the
       9                 : // Free Software Foundation; either version 3, or (at your option)
      10                 : // any later version.
      11                 : 
      12                 : // This library is distributed in the hope that it will be useful,
      13                 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15                 : // GNU General Public License for more details.
      16                 : 
      17                 : // Under Section 7 of GPL version 3, you are granted additional
      18                 : // permissions described in the GCC Runtime Library Exception, version
      19                 : // 3.1, as published by the Free Software Foundation.
      20                 : 
      21                 : // You should have received a copy of the GNU General Public License and
      22                 : // a copy of the GCC Runtime Library Exception along with this program;
      23                 : // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      24                 : // <http://www.gnu.org/licenses/>.
      25                 : 
      26                 : /** @file include/iostream
      27                 :  *  This is a Standard C++ Library header.
      28                 :  */
      29                 : 
      30                 : //
      31                 : // ISO C++ 14882: 27.3  Standard iostream objects
      32                 : //
      33                 : 
      34                 : #ifndef _GLIBCXX_IOSTREAM
      35                 : #define _GLIBCXX_IOSTREAM 1
      36                 : 
      37                 : #pragma GCC system_header
      38                 : 
      39                 : #include <bits/c++config.h>
      40                 : #include <ostream>
      41                 : #include <istream>
      42                 : 
      43                 : namespace std _GLIBCXX_VISIBILITY(default)
      44                 : {
      45                 : _GLIBCXX_BEGIN_NAMESPACE_VERSION
      46                 : 
      47                 :   /**
      48                 :    *  @name Standard Stream Objects
      49                 :    *
      50                 :    *  The &lt;iostream&gt; header declares the eight <em>standard stream
      51                 :    *  objects</em>.  For other declarations, see
      52                 :    *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html
      53                 :    *  and the @link iosfwd I/O forward declarations @endlink
      54                 :    *
      55                 :    *  They are required by default to cooperate with the global C
      56                 :    *  library's @c FILE streams, and to be available during program
      57                 :    *  startup and termination. For more information, see the HOWTO
      58                 :    *  linked to above.
      59                 :   */
      60                 :   //@{
      61                 :   extern istream cin;           /// Linked to standard input
      62                 :   extern ostream cout;          /// Linked to standard output
      63                 :   extern ostream cerr;          /// Linked to standard error (unbuffered)
      64                 :   extern ostream clog;          /// Linked to standard error (buffered)
      65                 : 
      66                 : #ifdef _GLIBCXX_USE_WCHAR_T
      67                 :   extern wistream wcin;         /// Linked to standard input
      68                 :   extern wostream wcout;        /// Linked to standard output
      69                 :   extern wostream wcerr;        /// Linked to standard error (unbuffered)
      70                 :   extern wostream wclog;        /// Linked to standard error (buffered)
      71                 : #endif
      72                 :   //@}
      73                 : 
      74                 :   // For construction of filebuffers for cout, cin, cerr, clog et. al.
      75              23 :   static ios_base::Init __ioinit;
      76                 : 
      77                 : _GLIBCXX_END_NAMESPACE_VERSION
      78                 : } // namespace
      79                 : 
      80                 : #endif /* _GLIBCXX_IOSTREAM */