| 1 | // Standard iostream objects -*- C++ -*- |
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| 2 | |
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| 3 | // Copyright (C) 1997-2021 Free Software Foundation, Inc. |
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| 4 | // |
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| 5 | // This file is part of the GNU ISO C++ Library. This library is free |
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| 6 | // software; you can redistribute it and/or modify it under the |
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| 7 | // terms of the GNU General Public License as published by the |
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| 8 | // Free Software Foundation; either version 3, or (at your option) |
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| 9 | // any later version. |
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| 10 | |
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| 11 | // This library is distributed in the hope that it will be useful, |
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| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | // GNU General Public License for more details. |
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| 15 | |
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| 16 | // Under Section 7 of GPL version 3, you are granted additional |
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| 17 | // permissions described in the GCC Runtime Library Exception, version |
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| 18 | // 3.1, as published by the Free Software Foundation. |
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| 19 | |
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| 20 | // You should have received a copy of the GNU General Public License and |
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| 21 | // a copy of the GCC Runtime Library Exception along with this program; |
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| 22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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| 23 | // <http://www.gnu.org/licenses/>. |
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| 24 | |
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| 25 | /** @file include/iostream |
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| 26 | * This is a Standard C++ Library header. |
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| 27 | */ |
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| 28 | |
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| 29 | // |
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| 30 | // ISO C++ 14882: 27.3 Standard iostream objects |
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| 31 | // |
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| 32 | |
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| 33 | #ifndef _GLIBCXX_IOSTREAM |
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| 34 | #define _GLIBCXX_IOSTREAM 1 |
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| 35 | |
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| 36 | #pragma GCC system_header |
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| 37 | |
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| 38 | #include <bits/c++config.h> |
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| 39 | #include <ostream> |
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| 40 | #include <istream> |
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| 41 | |
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| 42 | namespace std _GLIBCXX_VISIBILITY(default) |
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| 43 | { |
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| 44 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
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| 45 | |
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| 46 | /** |
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| 47 | * @name Standard Stream Objects |
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| 48 | * |
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| 49 | * The <iostream> header declares the eight <em>standard stream |
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| 50 | * objects</em>. For other declarations, see |
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| 51 | * http://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html |
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| 52 | * and the @link iosfwd I/O forward declarations @endlink |
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| 53 | * |
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| 54 | * They are required by default to cooperate with the global C |
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| 55 | * library's @c FILE streams, and to be available during program |
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| 56 | * startup and termination. For more information, see the section of the |
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| 57 | * manual linked to above. |
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| 58 | */ |
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| 59 | ///@{ |
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| 60 | extern istream cin; /// Linked to standard input |
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| 61 | extern ostream cout; /// Linked to standard output |
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| 62 | extern ostream cerr; /// Linked to standard error (unbuffered) |
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| 63 | extern ostream clog; /// Linked to standard error (buffered) |
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| 64 | |
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| 65 | #ifdef _GLIBCXX_USE_WCHAR_T |
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| 66 | extern wistream wcin; /// Linked to standard input |
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| 67 | extern wostream wcout; /// Linked to standard output |
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| 68 | extern wostream wcerr; /// Linked to standard error (unbuffered) |
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| 69 | extern wostream wclog; /// Linked to standard error (buffered) |
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| 70 | #endif |
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| 71 | ///@} |
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| 72 | |
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| 73 | // For construction of filebuffers for cout, cin, cerr, clog et. al. |
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| 74 | static ios_base::Init __ioinit; |
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| 75 | |
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| 76 | _GLIBCXX_END_NAMESPACE_VERSION |
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| 77 | } // namespace |
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| 78 | |
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| 79 | #endif /* _GLIBCXX_IOSTREAM */ |
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| 80 | |
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