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- /*=============================================================================
- Copyright (c) 2007 Tobias Schwinger
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- ==============================================================================*/
- #ifndef BOOST_FUSION_REPETITIVE_VIEW_ITERATOR_HPP_INCLUDED
- #define BOOST_FUSION_REPETITIVE_VIEW_ITERATOR_HPP_INCLUDED
- #include <boost/fusion/support/config.hpp>
- #include <boost/fusion/support/iterator_base.hpp>
- #include <boost/fusion/support/category_of.hpp>
- #include <boost/fusion/iterator/mpl/convert_iterator.hpp>
- #include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
- #include <boost/fusion/sequence/intrinsic/begin.hpp>
- #include <boost/fusion/sequence/intrinsic/end.hpp>
- #include <boost/fusion/view/repetitive_view/detail/deref_impl.hpp>
- #include <boost/fusion/view/repetitive_view/detail/next_impl.hpp>
- #include <boost/fusion/view/repetitive_view/detail/value_of_impl.hpp>
- namespace boost { namespace fusion
- {
- struct repetitive_view_iterator_tag;
- template<typename Sequence, typename Pos =
- typename result_of::begin<Sequence>::type>
- struct repetitive_view_iterator
- : iterator_base< repetitive_view_iterator<Sequence,Pos> >
- {
- typedef repetitive_view_iterator_tag fusion_tag;
- typedef Sequence sequence_type;
- typedef typename convert_iterator<Pos>::type pos_type;
- typedef typename convert_iterator<typename result_of::begin<Sequence>::type>::type first_type;
- typedef typename convert_iterator<typename result_of::end<Sequence>::type>::type end_type;
- typedef single_pass_traversal_tag category;
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- explicit repetitive_view_iterator(Sequence& in_seq)
- : seq(in_seq), pos(begin(in_seq)) {}
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- repetitive_view_iterator(Sequence& in_seq, pos_type const& in_pos)
- : seq(in_seq), pos(in_pos) {}
- Sequence& seq;
- pos_type pos;
- private:
- // silence MSVC warning C4512: assignment operator could not be generated
- repetitive_view_iterator& operator= (repetitive_view_iterator const&);
- };
- }}
- #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
- namespace std
- {
- template <typename Sequence, typename Pos>
- struct iterator_traits< ::boost::fusion::repetitive_view_iterator<Sequence, Pos> >
- { };
- }
- #endif
- #endif
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