1 // Standard iostream objects -*- C++ -*-
3 // Copyright (C) 1997, 1998, 1999, 2001, 2002 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 2, 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 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
31 // ISO C++ 14882: 27.3 Standard iostream objects
35 * This is a Standard C++ Library header. You should @c #include this header
36 * in your programs, rather than any of the "st[dl]_*.h" implementation files.
39 #ifndef _GLIBCXX_IOSTREAM
40 #define _GLIBCXX_IOSTREAM 1
42 #pragma GCC system_header
44 #include <bits/c++config.h>
51 * @name Standard Stream Objects
53 * The <iostream> 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
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.
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)
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)
76 // For construction of filebuffers for cout, cin, cerr, clog et. al.
77 static ios_base::Init __ioinit;
80 #endif /* _GLIBCXX_IOSTREAM */