back_extended_deque.hpp 1.7 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/mpl/int.hpp>
  10. #include <boost/fusion/sequence/intrinsic/size.hpp>
  11. #include <boost/fusion/support/sequence_base.hpp>
  12. #include <boost/fusion/container/deque/detail/keyed_element.hpp>
  13. namespace boost { namespace fusion
  14. {
  15. template <typename Deque, typename T>
  16. struct back_extended_deque
  17. : detail::keyed_element<typename Deque::next_up, T, Deque>
  18. , sequence_base<back_extended_deque<Deque, T> >
  19. {
  20. typedef detail::keyed_element<typename Deque::next_up, T, Deque> base;
  21. typedef typename Deque::next_down next_down;
  22. typedef mpl::int_<(Deque::next_up::value + 1)> next_up;
  23. typedef mpl::int_<(result_of::size<Deque>::value + 1)> size;
  24. template <typename Arg>
  25. back_extended_deque(Deque const& deque, Arg const& val)
  26. : base(val, deque)
  27. {}
  28. #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  29. template <typename Arg>
  30. back_extended_deque(Deque const& deque, Arg& val)
  31. : base(val, deque)
  32. {}
  33. #else
  34. template <typename Arg>
  35. back_extended_deque(Deque const& deque, Arg&& val)
  36. : base(std::forward<Arg>(val), deque)
  37. {}
  38. #endif
  39. };
  40. }}
  41. #endif