1 | // Standard iostream objects -*- C++ -*- |
2 | |
3 | // Copyright (C) 1997-2021 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 <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 |
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 | static ios_base::Init __ioinit; |
75 | |
76 | _GLIBCXX_END_NAMESPACE_VERSION |
77 | } // namespace |
78 | |
79 | #endif /* _GLIBCXX_IOSTREAM */ |
80 | |