1 // Standard iostream objects -*- C++ -*- 2 3 // Copyright (C) 1997, 1998, 1999, 2001, 2002, 2005, 2008, 2009, 2010 4 // Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 3, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // Under Section 7 of GPL version 3, you are granted additional 18 // permissions described in the GCC Runtime Library Exception, version 19 // 3.1, as published by the Free Software Foundation. 20 21 // You should have received a copy of the GNU General Public License and 22 // a copy of the GCC Runtime Library Exception along with this program; 23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 // <http://www.gnu.org/licenses/>. 25 26 /** @file include/iostream 27 * This is a Standard C++ Library header. 28 */ 29 30 // 31 // ISO C++ 14882: 27.3 Standard iostream objects 32 // 33 34 #ifndef _GLIBCXX_IOSTREAM 35 #define _GLIBCXX_IOSTREAM 1 36 37 #pragma GCC system_header 38 39 #include <bits/c++config.h> 40 #include <ostream> 41 #include <istream> 42 43 namespace std _GLIBCXX_VISIBILITY(default) 44 { 45 _GLIBCXX_BEGIN_NAMESPACE_VERSION 46 47 /** 48 * @name Standard Stream Objects 49 * 50 * The <iostream> header declares the eight <em>standard stream 51 * objects</em>. For other declarations, see 52 * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html 53 * and the @link iosfwd I/O forward declarations @endlink 54 * 55 * They are required by default to cooperate with the global C 56 * library's @c FILE streams, and to be available during program 57 * startup and termination. For more information, see the HOWTO 58 * linked to above. 59 */ 60 //@{ 61 extern istream cin; /// Linked to standard input 62 extern ostream cout; /// Linked to standard output 63 extern ostream cerr; /// Linked to standard error (unbuffered) 64 extern ostream clog; /// Linked to standard error (buffered) 65 66 #ifdef _GLIBCXX_USE_WCHAR_T 67 extern wistream wcin; /// Linked to standard input 68 extern wostream wcout; /// Linked to standard output 69 extern wostream wcerr; /// Linked to standard error (unbuffered) 70 extern wostream wclog; /// Linked to standard error (buffered) 71 #endif 72 //@} 73 74 // For construction of filebuffers for cout, cin, cerr, clog et. al. 75 static ios_base::Init __ioinit; 76 77 _GLIBCXX_END_NAMESPACE_VERSION 78 } // namespace 79 80 #endif /* _GLIBCXX_IOSTREAM */ 81
