1 /*============================================================================= 2 Copyright (c) 2005-2012 Joel de Guzman 3 Copyright (c) 2005-2006 Dan Marsden 4 5 Distributed under the Boost Software License, Version 1.0. (See accompanying 6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 7 ==============================================================================*/ 8 #if !defined(BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209) 9 #define BOOST_FUSION_FRONT_EXTENDED_DEQUE_26112006_2209 10 11 #include <boost/fusion/support/config.hpp> 12 #include <boost/mpl/int.hpp> 13 #include <boost/fusion/support/sequence_base.hpp> 14 #include <boost/fusion/sequence/intrinsic/size.hpp> 15 #include <boost/fusion/container/deque/detail/keyed_element.hpp> 16 17 namespace boost { namespace fusion 18 { 19 template <typename Deque, typename T> 20 struct front_extended_deque 21 : detail::keyed_element<typename Deque::next_down, T, Deque> 22 , sequence_base<front_extended_deque<Deque, T> > 23 { 24 typedef detail::keyed_element<typename Deque::next_down, T, Deque> base; 25 typedef mpl::int_<(Deque::next_down::value - 1)> next_down; 26 typedef typename Deque::next_up next_up; 27 typedef mpl::int_<(result_of::size<Deque>::value + 1)> size; 28 29 template <typename Arg> 30 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED front_extended_dequeboost::fusion::front_extended_deque31 front_extended_deque(Deque const& deque, Arg const& val) 32 : base(val, deque) 33 {} 34 35 #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) 36 template <typename Arg> 37 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED front_extended_dequeboost::fusion::front_extended_deque38 front_extended_deque(Deque const& deque, Arg& val) 39 : base(val, deque) 40 {} 41 #else 42 template <typename Arg> 43 BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED front_extended_dequeboost::fusion::front_extended_deque44 front_extended_deque(Deque const& deque, Arg&& val) 45 : base(BOOST_FUSION_FWD_ELEM(Arg, val), deque) 46 {} 47 #endif 48 }; 49 }} 50 51 #endif 52