1// Standard iostream objects -*- C++ -*-
2
3// Copyright (C) 1997, 1998, 1999, 2001, 2002, 2005
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 2, 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// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING.  If not, write to the Free
19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
20// USA.
21
22// As a special exception, you may use this file as part of a free software
23// library without restriction.  Specifically, if other files instantiate
24// templates or use macros or inline functions from this file, or you compile
25// this file and link it with other files to produce an executable, this
26// file does not by itself cause the resulting executable to be covered by
27// the GNU General Public License.  This exception does not however
28// invalidate any other reasons why the executable file might be covered by
29// the GNU General Public License.
30
31/** @file iostream
32 *  This is a Standard C++ Library header.
33 */
34
35//
36// ISO C++ 14882: 27.3  Standard iostream objects
37//
38
39#ifndef _GLIBCXX_IOSTREAM
40#define _GLIBCXX_IOSTREAM 1
41
42#pragma GCC system_header
43
44#include <bits/c++config.h>
45#include <ostream>
46#include <istream>
47
48_GLIBCXX_BEGIN_NAMESPACE(std)
49
50  /**
51   *  @name Standard Stream Objects
52   *
53   *  The &lt;iostream&gt; header declares the eight <em>standard stream
54   *  objects</em>.  For other declarations, see
55   *  http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 and the
56   *  @link s27_2_iosfwd I/O forward declarations @endlink
57   *
58   *  They are required by default to cooperate with the global C library's
59   *  @c FILE streams, and to be available during program startup and
60   *  termination.  For more information, see the HOWTO linked to above.
61  */
62  //@{
63  extern istream cin;		///< Linked to standard input
64  extern ostream cout;		///< Linked to standard output
65  extern ostream cerr;		///< Linked to standard error (unbuffered)
66  extern ostream clog;		///< Linked to standard error (buffered)
67
68#ifdef _GLIBCXX_USE_WCHAR_T
69  extern wistream wcin;		///< Linked to standard input
70  extern wostream wcout;	///< Linked to standard output
71  extern wostream wcerr;	///< Linked to standard error (unbuffered)
72  extern wostream wclog;	///< Linked to standard error (buffered)
73#endif
74  //@}
75
76  // For construction of filebuffers for cout, cin, cerr, clog et. al.
77  static ios_base::Init __ioinit;
78
79_GLIBCXX_END_NAMESPACE
80
81#endif /* _GLIBCXX_IOSTREAM */
82