back_extended_deque.hpp 1.9 KB

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  1. /*=============================================================================
  2. Copyright (c) 2005-2012 Joel de Guzman
  3. Copyright (c) 2005-2006 Dan Marsden
  4. Distributed under the Boost Software License, Version 1.0. (See accompanying
  5. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  6. ==============================================================================*/
  7. #if !defined(BOOST_FUSION_BACK_EXTENDED_DEQUE_26112006_2209)
  8. #define BOOST_FUSION_BACK_EXTENDED_DEQUE_26112006_2209
  9. #include <boost/config.hpp>
  10. #include <boost/fusion/support/config.hpp>
  11. #include <boost/mpl/int.hpp>
  12. #include <boost/fusion/sequence/intrinsic/size.hpp>
  13. #include <boost/fusion/support/sequence_base.hpp>
  14. #include <boost/fusion/container/deque/detail/keyed_element.hpp>
  15. namespace boost { namespace fusion
  16. {
  17. template <typename Deque, typename T>
  18. struct back_extended_deque
  19. : detail::keyed_element<typename Deque::next_up, T, Deque>
  20. , sequence_base<back_extended_deque<Deque, T> >
  21. {
  22. typedef detail::keyed_element<typename Deque::next_up, T, Deque> base;
  23. typedef typename Deque::next_down next_down;
  24. typedef mpl::int_<(Deque::next_up::value + 1)> next_up;
  25. typedef mpl::int_<(result_of::size<Deque>::value + 1)> size;
  26. template <typename Arg>
  27. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  28. back_extended_deque(Deque const& deque, Arg const& val)
  29. : base(val, deque)
  30. {}
  31. #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  32. template <typename Arg>
  33. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  34. back_extended_deque(Deque const& deque, Arg& val)
  35. : base(val, deque)
  36. {}
  37. #else
  38. template <typename Arg>
  39. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  40. back_extended_deque(Deque const& deque, Arg&& val)
  41. : base(BOOST_FUSION_FWD_ELEM(Arg, val), deque)
  42. {}
  43. #endif
  44. };
  45. }}
  46. #endif