00001 // Standard iostream objects -*- C++ -*- 00002 00003 // Copyright (C) 1997, 1998, 1999, 2001, 2002, 2005 00004 // Free Software Foundation, Inc. 00005 // 00006 // This file is part of the GNU ISO C++ Library. This library is free 00007 // software; you can redistribute it and/or modify it under the 00008 // terms of the GNU General Public License as published by the 00009 // Free Software Foundation; either version 2, or (at your option) 00010 // any later version. 00011 00012 // This library is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 00017 // You should have received a copy of the GNU General Public License 00018 // along with this library; see the file COPYING. If not, write to 00019 // the Free Software Foundation, 51 Franklin Street, Fifth Floor, 00020 // Boston, MA 02110-1301, USA. 00021 00022 // As a special exception, you may use this file as part of a free software 00023 // library without restriction. Specifically, if other files instantiate 00024 // templates or use macros or inline functions from this file, or you compile 00025 // this file and link it with other files to produce an executable, this 00026 // file does not by itself cause the resulting executable to be covered by 00027 // the GNU General Public License. This exception does not however 00028 // invalidate any other reasons why the executable file might be covered by 00029 // the GNU General Public License. 00030 00031 /** @file iostream 00032 * This is a Standard C++ Library header. 00033 */ 00034 00035 // 00036 // ISO C++ 14882: 27.3 Standard iostream objects 00037 // 00038 00039 #ifndef _GLIBCXX_IOSTREAM 00040 #define _GLIBCXX_IOSTREAM 1 00041 00042 #pragma GCC system_header 00043 00044 #include <bits/c++config.h> 00045 #include <ostream> 00046 #include <istream> 00047 00048 _GLIBCXX_BEGIN_NAMESPACE(std) 00049 00050 /** 00051 * @name Standard Stream Objects 00052 * 00053 * The <iostream> header declares the eight <em>standard stream 00054 * objects</em>. For other declarations, see 00055 * http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 and the 00056 * @link s27_2_iosfwd I/O forward declarations @endlink 00057 * 00058 * They are required by default to cooperate with the global C library's 00059 * @c FILE streams, and to be available during program startup and 00060 * termination. For more information, see the HOWTO linked to above. 00061 */ 00062 //@{ 00063 extern istream cin; ///< Linked to standard input 00064 extern ostream cout; ///< Linked to standard output 00065 extern ostream cerr; ///< Linked to standard error (unbuffered) 00066 extern ostream clog; ///< Linked to standard error (buffered) 00067 00068 #ifdef _GLIBCXX_USE_WCHAR_T 00069 extern wistream wcin; ///< Linked to standard input 00070 extern wostream wcout; ///< Linked to standard output 00071 extern wostream wcerr; ///< Linked to standard error (unbuffered) 00072 extern wostream wclog; ///< Linked to standard error (buffered) 00073 #endif 00074 //@} 00075 00076 // For construction of filebuffers for cout, cin, cerr, clog et. al. 00077 static ios_base::Init __ioinit; 00078 00079 _GLIBCXX_END_NAMESPACE 00080 00081 #endif /* _GLIBCXX_IOSTREAM */