1 /*=============================================================================
2     Copyright (c) 2001-2011 Joel de Guzman
3     Copyright (c) 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(FUSION_ZIP_VIEW_ITERATOR_23012006_0814)
9 #define FUSION_ZIP_VIEW_ITERATOR_23012006_0814
10 
11 #include <boost/fusion/support/config.hpp>
12 #include <boost/fusion/view/zip_view/zip_view_iterator_fwd.hpp>
13 #include <boost/fusion/support/iterator_base.hpp>
14 #include <boost/fusion/view/zip_view/detail/deref_impl.hpp>
15 #include <boost/fusion/view/zip_view/detail/next_impl.hpp>
16 #include <boost/fusion/view/zip_view/detail/prior_impl.hpp>
17 #include <boost/fusion/view/zip_view/detail/advance_impl.hpp>
18 #include <boost/fusion/view/zip_view/detail/distance_impl.hpp>
19 #include <boost/fusion/view/zip_view/detail/value_of_impl.hpp>
20 #include <boost/fusion/view/zip_view/detail/equal_to_impl.hpp>
21 
22 #include <boost/fusion/container/vector/convert.hpp>
23 
24 namespace boost { namespace fusion {
25 
26     struct zip_view_iterator_tag;
27 
28     template<
29         typename IteratorSequence,
30         typename Traversal>
31     struct zip_view_iterator
32         : iterator_base<zip_view_iterator<IteratorSequence, Traversal> >
33     {
34         typedef zip_view_iterator_tag fusion_tag;
35         typedef Traversal category;
36 
37         template<typename InitSeq>
38         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
zip_view_iteratorboost::fusion::zip_view_iterator39         zip_view_iterator(
40             const InitSeq& iterator_seq)
41             : iterators_(iterator_seq)
42         {}
43 
44         typedef typename result_of::as_vector<IteratorSequence>::type iterators;
45         iterators iterators_;
46     };
47 }}
48 
49 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
50 namespace std
51 {
52     template <typename IteratorSequence, typename Traversal>
53     struct iterator_traits< ::boost::fusion::zip_view_iterator<IteratorSequence, Traversal> >
54     { };
55 }
56 #endif
57 
58 #endif
59