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       1             : // Standard iostream objects -*- C++ -*-
       2             : 
       3             : // Copyright (C) 1997-2016 Free Software Foundation, Inc.
       4             : //
       5             : // This file is part of the GNU ISO C++ Library.  This library is free
       6             : // software; you can redistribute it and/or modify it under the
       7             : // terms of the GNU General Public License as published by the
       8             : // Free Software Foundation; either version 3, or (at your option)
       9             : // any later version.
      10             : 
      11             : // This library is distributed in the hope that it will be useful,
      12             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             : // GNU General Public License for more details.
      15             : 
      16             : // Under Section 7 of GPL version 3, you are granted additional
      17             : // permissions described in the GCC Runtime Library Exception, version
      18             : // 3.1, as published by the Free Software Foundation.
      19             : 
      20             : // You should have received a copy of the GNU General Public License and
      21             : // a copy of the GCC Runtime Library Exception along with this program;
      22             : // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23             : // <http://www.gnu.org/licenses/>.
      24             : 
      25             : /** @file include/iostream
      26             :  *  This is a Standard C++ Library header.
      27             :  */
      28             : 
      29             : //
      30             : // ISO C++ 14882: 27.3  Standard iostream objects
      31             : //
      32             : 
      33             : #ifndef _GLIBCXX_IOSTREAM
      34             : #define _GLIBCXX_IOSTREAM 1
      35             : 
      36             : #pragma GCC system_header
      37             : 
      38             : #include <bits/c++config.h>
      39             : #include <ostream>
      40             : #include <istream>
      41             : 
      42             : namespace std _GLIBCXX_VISIBILITY(default)
      43             : {
      44             : _GLIBCXX_BEGIN_NAMESPACE_VERSION
      45             : 
      46             :   /**
      47             :    *  @name Standard Stream Objects
      48             :    *
      49             :    *  The &lt;iostream&gt; header declares the eight <em>standard stream
      50             :    *  objects</em>.  For other declarations, see
      51             :    *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html
      52             :    *  and the @link iosfwd I/O forward declarations @endlink
      53             :    *
      54             :    *  They are required by default to cooperate with the global C
      55             :    *  library's @c FILE streams, and to be available during program
      56             :    *  startup and termination. For more information, see the section of the
      57             :    *  manual linked to above.
      58             :   */
      59             :   //@{
      60             :   extern istream cin;           /// Linked to standard input
      61             :   extern ostream cout;          /// Linked to standard output
      62             :   extern ostream cerr;          /// Linked to standard error (unbuffered)
      63             :   extern ostream clog;          /// Linked to standard error (buffered)
      64             : 
      65             : #ifdef _GLIBCXX_USE_WCHAR_T
      66             :   extern wistream wcin;         /// Linked to standard input
      67             :   extern wostream wcout;        /// Linked to standard output
      68             :   extern wostream wcerr;        /// Linked to standard error (unbuffered)
      69             :   extern wostream wclog;        /// Linked to standard error (buffered)
      70             : #endif
      71             :   //@}
      72             : 
      73             :   // For construction of filebuffers for cout, cin, cerr, clog et. al.
      74         149 :   static ios_base::Init __ioinit;
      75             : 
      76             : _GLIBCXX_END_NAMESPACE_VERSION
      77             : } // namespace
      78             : 
      79             : #endif /* _GLIBCXX_IOSTREAM */