1 // Standard iostream objects -*- C++ -*- 2 3 // Copyright (C) 1997-2013 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
