1 // Standard iostream objects -*- C++ -*-
 
    3 // Copyright (C) 1997-2014 Free Software Foundation, Inc.
 
    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)
 
   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.
 
   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.
 
   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/>.
 
   25 /** @file include/iostream
 
   26  *  This is a Standard C++ Library header.
 
   30 // ISO C++ 14882: 27.3  Standard iostream objects
 
   33 #ifndef _GLIBCXX_IOSTREAM
 
   34 #define _GLIBCXX_IOSTREAM 1
 
   36 #pragma GCC system_header
 
   38 #include <bits/c++config.h>
 
   42 namespace std _GLIBCXX_VISIBILITY(default)
 
   44 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
   47    *  @name Standard Stream Objects
 
   49    *  The <iostream> 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
 
   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.
 
   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)
 
   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)
 
   73   // For construction of filebuffers for cout, cin, cerr, clog et. al.
 
   74   static ios_base::Init __ioinit;
 
   76 _GLIBCXX_END_NAMESPACE_VERSION
 
   79 #endif /* _GLIBCXX_IOSTREAM */