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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