1 2 3 // class template reference_wrapper forwarding header -*- C++ -*- 4 5 // Copyright (C) 2004, 2005 Free Software Foundation, Inc. 6 // 7 // This file is part of the GNU ISO C++ Library. This library is free 8 // software; you can redistribute it and/or modify it under the 9 // terms of the GNU General Public License as published by the 10 // Free Software Foundation; either version 2, or (at your option) 11 // any later version. 12 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // You should have received a copy of the GNU General Public License along 19 // with this library; see the file COPYING. If not, write to the Free 20 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 21 // USA. 22 23 // As a special exception, you may use this file as part of a free software 24 // library without restriction. Specifically, if other files instantiate 25 // templates or use macros or inline functions from this file, or you compile 26 // this file and link it with other files to produce an executable, this 27 // file does not by itself cause the resulting executable to be covered by 28 // the GNU General Public License. This exception does not however 29 // invalidate any other reasons why the executable file might be covered by 30 // the GNU General Public License. 31 32 /** @file tr1/ref_fwd.h 33 * This is an internal header file, included by other library headers. 34 * You should not attempt to use it directly. 35 */ 36 37 // Douglas Gregor <doug.gregor -at- gmail.com> 38 #ifndef _TR1_REF_FWD 39 #define _TR1_REF_FWD 40 41 namespace std 42 { 43 _GLIBCXX_BEGIN_NAMESPACE(tr1) 44 45 template<typename _Tp> 46 class reference_wrapper; 47 48 template<typename _Tp> 49 reference_wrapper<_Tp> 50 ref(_Tp& __t); 51 52 // Denotes a const reference should be taken to a variable. 53 template<typename _Tp> 54 reference_wrapper<const _Tp> 55 cref(const _Tp& __t); 56 57 _GLIBCXX_END_NAMESPACE 58 } 59 #endif 60