Alexander Afanasyev | 30cb117 | 2012-07-06 10:47:39 -0700 | [diff] [blame] | 1 | /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
| 2 | /* |
| 3 | * Copyright (c) 2011 University of California, Los Angeles |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation; |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | * |
| 18 | * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu> |
| 19 | */ |
| 20 | |
| 21 | #ifndef MULTI_TYPE_CONTAINER_H_ |
| 22 | #define MULTI_TYPE_CONTAINER_H_ |
| 23 | |
| 24 | #include <boost/mpl/inherit_linearly.hpp> |
| 25 | #include <boost/mpl/inherit.hpp> |
| 26 | #include <boost/mpl/at.hpp> |
| 27 | |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 28 | namespace ns3 { |
| 29 | namespace ndn { |
| 30 | namespace ndnSIM { |
| 31 | namespace detail { |
Alexander Afanasyev | 30cb117 | 2012-07-06 10:47:39 -0700 | [diff] [blame] | 32 | |
| 33 | template <class T> |
| 34 | struct wrap |
| 35 | { |
| 36 | T value_; |
| 37 | }; |
| 38 | |
| 39 | template< class Vector > |
| 40 | struct multi_type_container |
| 41 | : public boost::mpl::inherit_linearly< Vector, boost::mpl::inherit<wrap<boost::mpl::_2>, boost::mpl::_1 > |
| 42 | >::type |
| 43 | { |
| 44 | template<int N> |
| 45 | struct index |
| 46 | { |
| 47 | typedef typename boost::mpl::at_c<Vector, N>::type type; |
| 48 | }; |
| 49 | |
| 50 | template<class T> |
| 51 | T & |
| 52 | get () |
| 53 | { |
| 54 | return static_cast< wrap<T> &> (*this).value_; |
| 55 | } |
| 56 | |
| 57 | template<class T> |
| 58 | const T & |
| 59 | get () const |
| 60 | { |
| 61 | return static_cast< const wrap<T> &> (*this).value_; |
| 62 | } |
| 63 | |
| 64 | template<int N> |
| 65 | typename boost::mpl::at_c<Vector, N>::type & |
| 66 | get () |
| 67 | { |
| 68 | typedef typename boost::mpl::at_c<Vector, N>::type T; |
| 69 | return static_cast< wrap<T> &> (*this).value_; |
| 70 | } |
| 71 | |
| 72 | template<int N> |
| 73 | const typename boost::mpl::at_c<Vector, N>::type & |
| 74 | get () const |
| 75 | { |
| 76 | typedef typename boost::mpl::at_c<Vector, N>::type T; |
| 77 | return static_cast< const wrap<T> &> (*this).value_; |
| 78 | } |
| 79 | }; |
| 80 | |
| 81 | } // detail |
| 82 | } // ndnSIM |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 83 | } // ndn |
Alexander Afanasyev | e77db79 | 2012-08-09 11:10:58 -0700 | [diff] [blame] | 84 | } // ns3 |
Alexander Afanasyev | 30cb117 | 2012-07-06 10:47:39 -0700 | [diff] [blame] | 85 | |
| 86 | #endif // MULTI_TYPE_CONTAINER_H_ |