| /*============================================================================= |
| Copyright (c) 2001-2006 Joel de Guzman |
| Copyright (c) 2005-2006 Dan Marsden |
| |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| ==============================================================================*/ |
| #if !defined(BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209) |
| #define BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209 |
| |
| #include <boost/fusion/container/deque/detail/keyed_element.hpp> |
| #include <boost/mpl/int.hpp> |
| #include <boost/mpl/minus.hpp> |
| #include <boost/mpl/plus.hpp> |
| #include <boost/fusion/sequence/intrinsic/size.hpp> |
| |
| #include <boost/type_traits/add_const.hpp> |
| #include <boost/type_traits/add_reference.hpp> |
| |
| #include <boost/fusion/support/sequence_base.hpp> |
| |
| namespace boost { namespace fusion { |
| template<typename Deque, typename T> |
| struct front_extended_deque |
| : detail::keyed_element<typename Deque::next_down, T, Deque>, |
| sequence_base<front_extended_deque<Deque, T> > |
| { |
| typedef detail::keyed_element<typename Deque::next_down, T, Deque> base; |
| typedef mpl::int_<mpl::minus<typename Deque::next_down, mpl::int_<1> >::value> next_down; |
| typedef typename Deque::next_up next_up; |
| typedef mpl::plus<typename result_of::size<Deque>::type, mpl::int_<1> > size; |
| |
| front_extended_deque(Deque const& deque, typename add_reference<typename add_const<T>::type>::type t) |
| : base(t, deque) |
| {} |
| }; |
| }} |
| |
| #endif |