libstdc++
iostream
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1 // Standard iostream objects -*- C++ -*-
2 
3 // Copyright (C) 1997, 1998, 1999, 2001, 2002, 2005, 2008, 2009
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 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 _GLIBCXX_BEGIN_NAMESPACE(std)
44 
45  /**
46  * @name Standard Stream Objects
47  *
48  * The &lt;iostream&gt; header declares the eight <em>standard stream
49  * objects</em>. For other declarations, see
50  * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html
51  * and the @link iosfwd I/O forward declarations @endlink
52  *
53  * They are required by default to cooperate with the global C library's
54  * @c FILE streams, and to be available during program startup and
55  * termination. For more information, see the HOWTO linked to above.
56  */
57  //@{
58  extern istream cin; ///< Linked to standard input
59  extern ostream cout; ///< Linked to standard output
60  extern ostream cerr; ///< Linked to standard error (unbuffered)
61  extern ostream clog; ///< Linked to standard error (buffered)
62 
63 #ifdef _GLIBCXX_USE_WCHAR_T
64  extern wistream wcin; ///< Linked to standard input
65  extern wostream wcout; ///< Linked to standard output
66  extern wostream wcerr; ///< Linked to standard error (unbuffered)
67  extern wostream wclog; ///< Linked to standard error (buffered)
68 #endif
69  //@}
70 
71  // For construction of filebuffers for cout, cin, cerr, clog et. al.
72  static ios_base::Init __ioinit;
73 
74 _GLIBCXX_END_NAMESPACE
75 
76 #endif /* _GLIBCXX_IOSTREAM */
ostream cerr
Linked to standard error (unbuffered)
wostream wcout
Linked to standard output.
istream cin
Linked to standard input.
wistream wcin
Linked to standard input.
basic_ostream< wchar_t > wostream
One of the I/O .
Definition: iosfwd:145
wostream wclog
Linked to standard error (buffered)
basic_istream< char > istream
One of the I/O .
Definition: iosfwd:129
basic_ostream< char > ostream
One of the I/O .
Definition: iosfwd:130
basic_istream< wchar_t > wistream
One of the I/O .
Definition: iosfwd:144
ostream clog
Linked to standard error (buffered)
wostream wcerr
Linked to standard error (unbuffered)
ostream cout
Linked to standard output.