zip_view_iterator.hpp 2.0 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  3. Copyright (c) 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(FUSION_ZIP_VIEW_ITERATOR_23012006_0814)
  8. #define FUSION_ZIP_VIEW_ITERATOR_23012006_0814
  9. #include <boost/fusion/support/config.hpp>
  10. #include <boost/fusion/view/zip_view/zip_view_iterator_fwd.hpp>
  11. #include <boost/fusion/support/iterator_base.hpp>
  12. #include <boost/fusion/view/zip_view/detail/deref_impl.hpp>
  13. #include <boost/fusion/view/zip_view/detail/next_impl.hpp>
  14. #include <boost/fusion/view/zip_view/detail/prior_impl.hpp>
  15. #include <boost/fusion/view/zip_view/detail/advance_impl.hpp>
  16. #include <boost/fusion/view/zip_view/detail/distance_impl.hpp>
  17. #include <boost/fusion/view/zip_view/detail/value_of_impl.hpp>
  18. #include <boost/fusion/view/zip_view/detail/equal_to_impl.hpp>
  19. #include <boost/fusion/container/vector/convert.hpp>
  20. namespace boost { namespace fusion {
  21. struct zip_view_iterator_tag;
  22. template<
  23. typename IteratorSequence,
  24. typename Traversal>
  25. struct zip_view_iterator
  26. : iterator_base<zip_view_iterator<IteratorSequence, Traversal> >
  27. {
  28. typedef zip_view_iterator_tag fusion_tag;
  29. typedef Traversal category;
  30. template<typename InitSeq>
  31. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  32. zip_view_iterator(
  33. const InitSeq& iterator_seq)
  34. : iterators_(iterator_seq)
  35. {}
  36. typedef typename result_of::as_vector<IteratorSequence>::type iterators;
  37. iterators iterators_;
  38. };
  39. }}
  40. #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
  41. namespace std
  42. {
  43. template <typename IteratorSequence, typename Traversal>
  44. struct iterator_traits< ::boost::fusion::zip_view_iterator<IteratorSequence, Traversal> >
  45. { };
  46. }
  47. #endif
  48. #endif