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 41namespace std 42{ 43_GLIBCXX_BEGIN_NAMESPACE(tr1) 44 45template<typename _Tp> 46 class reference_wrapper; 47 48template<typename _Tp> 49 reference_wrapper<_Tp> 50 ref(_Tp& __t); 51 52 // Denotes a const reference should be taken to a variable. 53template<typename _Tp> 54 reference_wrapper<const _Tp> 55 cref(const _Tp& __t); 56 57_GLIBCXX_END_NAMESPACE 58} 59#endif 60