deque/detail/deque_keyed_values.hpp

0001 /*=============================================================================
0002     Copyright (c) 2005-2012 Joel de Guzman
0003     Copyright (c) 2005-2006 Dan Marsden
0004
0005     Distributed under the Boost Software License, Version 1.0. (See accompanying
0006     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0007 ==============================================================================*/
0008 #if !defined(BOOST_FUSION_DEQUE_DETAIL_CPP11_DEQUE_KEYED_VALUES_07042012_1901)
0009 #define BOOST_FUSION_DEQUE_DETAIL_CPP11_DEQUE_KEYED_VALUES_07042012_1901
0010
0011 #include <boost/fusion/support/config.hpp>
0012 #include <boost/fusion/support/detail/access.hpp>
0013 #include <boost/fusion/container/deque/detail/keyed_element.hpp>
0014 #include <boost/mpl/int.hpp>
0015
0016 namespace boost { namespace fusion { namespace detail
0017 {
0018     template<typename Key, typename Value, typename Rest>
0019     struct keyed_element;
0020
0021     template <typename N, typename ...Elements>
0022     struct deque_keyed_values_impl;
0023
0024     template <typename N, typename Head, typename ...Tail>
0025     struct deque_keyed_values_impl<N, Head, Tail...>
0026     {
0027         typedef mpl::int_<(N::value + 1)> next_index;
0028         typedef typename deque_keyed_values_impl<next_index, Tail...>::type tail;
0029         typedef keyed_element<N, Head, tail> type;
0030
0031         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0032         static type construct(
0033           typename detail::call_param<Head>::type head
0034         , typename detail::call_param<Tail>::type... tail)
0035         {
0036             return type(
0037                 head
0038               , deque_keyed_values_impl<next_index, Tail...>::construct(tail...)
0039             );
0040         }
0041 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
0042         template <typename Head_, typename ...Tail_>
0043         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0044         static type forward_(Head_&& head, Tail_&&... tail)
0045         {
0046             return type(
0047                 BOOST_FUSION_FWD_ELEM(Head_, head)
0048               , deque_keyed_values_impl<next_index, Tail_...>::
0049                   forward_(BOOST_FUSION_FWD_ELEM(Tail_, tail)...)
0050             );
0051         }
0052 #endif
0053     };
0054
0055     struct nil_keyed_element;
0056
0057     template <typename N>
0058     struct deque_keyed_values_impl<N>
0059     {
0060         typedef nil_keyed_element type;
0061
0062         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0063         static type construct() { return type(); }
0064
0065 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
0066         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0067         static type forward_() { return type(); }
0068 #endif
0069     };
0070
0071     template <typename ...Elements>
0072     struct deque_keyed_values
0073       : deque_keyed_values_impl<mpl::int_<0>, Elements...> {};
0074 }}}
0075
0076 #endif