ceph/src/boost/libs/fusion/include/boost/fusion/container/deque/front_extended_deque.hpp

   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
  31         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
  38         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
  44         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