| /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
| /* |
| * Copyright (c) 2011 University of California, Los Angeles |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation; |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu> |
| */ |
| |
| #ifndef MULTI_TYPE_CONTAINER_H_ |
| #define MULTI_TYPE_CONTAINER_H_ |
| |
| #include <boost/mpl/inherit_linearly.hpp> |
| #include <boost/mpl/inherit.hpp> |
| #include <boost/mpl/at.hpp> |
| |
| namespace ns3 { |
| namespace ndn { |
| namespace ndnSIM { |
| namespace detail { |
| |
| template <class T> |
| struct wrap |
| { |
| T value_; |
| }; |
| |
| template< class Vector > |
| struct multi_type_container |
| : public boost::mpl::inherit_linearly< Vector, boost::mpl::inherit<wrap<boost::mpl::_2>, boost::mpl::_1 > |
| >::type |
| { |
| template<int N> |
| struct index |
| { |
| typedef typename boost::mpl::at_c<Vector, N>::type type; |
| }; |
| |
| template<class T> |
| T & |
| get () |
| { |
| return static_cast< wrap<T> &> (*this).value_; |
| } |
| |
| template<class T> |
| const T & |
| get () const |
| { |
| return static_cast< const wrap<T> &> (*this).value_; |
| } |
| |
| template<int N> |
| typename boost::mpl::at_c<Vector, N>::type & |
| get () |
| { |
| typedef typename boost::mpl::at_c<Vector, N>::type T; |
| return static_cast< wrap<T> &> (*this).value_; |
| } |
| |
| template<int N> |
| const typename boost::mpl::at_c<Vector, N>::type & |
| get () const |
| { |
| typedef typename boost::mpl::at_c<Vector, N>::type T; |
| return static_cast< const wrap<T> &> (*this).value_; |
| } |
| }; |
| |
| } // detail |
| } // ndnSIM |
| } // ndn |
| } // ns3 |
| |
| #endif // MULTI_TYPE_CONTAINER_H_ |