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1 | /*============================================================================= |
2 | Copyright (c) 2001-2011 Joel de Guzman | |
3 | ||
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_JOINT_VIEW_ITERATOR_07162005_0140) | |
8 | #define FUSION_JOINT_VIEW_ITERATOR_07162005_0140 | |
9 | ||
10 | #include <boost/fusion/support/config.hpp> | |
11 | #include <boost/fusion/support/iterator_base.hpp> | |
12 | #include <boost/fusion/iterator/equal_to.hpp> | |
13 | #include <boost/fusion/iterator/mpl/convert_iterator.hpp> | |
14 | #include <boost/fusion/adapted/mpl/mpl_iterator.hpp> | |
15 | #include <boost/fusion/view/joint_view/detail/deref_impl.hpp> | |
16 | #include <boost/fusion/view/joint_view/detail/next_impl.hpp> | |
17 | #include <boost/fusion/view/joint_view/detail/value_of_impl.hpp> | |
18 | #include <boost/fusion/view/joint_view/detail/deref_data_impl.hpp> | |
19 | #include <boost/fusion/view/joint_view/detail/value_of_data_impl.hpp> | |
20 | #include <boost/fusion/view/joint_view/detail/key_of_impl.hpp> | |
21 | #include <boost/static_assert.hpp> | |
22 | ||
23 | namespace boost { namespace fusion | |
24 | { | |
25 | struct joint_view_iterator_tag; | |
26 | struct forward_traversal_tag; | |
27 | ||
28 | template <typename Category, typename First, typename Last, typename Concat> | |
29 | struct joint_view_iterator | |
30 | : iterator_base<joint_view_iterator<Category, First, Last, Concat> > | |
31 | { | |
32 | typedef convert_iterator<First> first_converter; | |
33 | typedef convert_iterator<Last> last_converter; | |
34 | typedef convert_iterator<Concat> concat_converter; | |
35 | ||
36 | typedef typename first_converter::type first_type; | |
37 | typedef typename last_converter::type last_type; | |
38 | typedef typename concat_converter::type concat_type; | |
39 | ||
40 | typedef joint_view_iterator_tag fusion_tag; | |
41 | typedef Category category; | |
42 | BOOST_STATIC_ASSERT((!result_of::equal_to<first_type, last_type>::value)); | |
43 | ||
44 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
45 | joint_view_iterator(First const& in_first, Concat const& in_concat) | |
46 | : first(first_converter::call(in_first)) | |
47 | , concat(concat_converter::call(in_concat)) | |
48 | {} | |
49 | ||
50 | first_type first; | |
51 | concat_type concat; | |
52 | ||
53 | private: | |
54 | // silence MSVC warning C4512: assignment operator could not be generated | |
55 | joint_view_iterator& operator= (joint_view_iterator const&); | |
56 | }; | |
57 | }} | |
58 | ||
59 | #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408 | |
60 | namespace std | |
61 | { | |
62 | template <typename Category, typename First, typename Last, typename Concat> | |
63 | struct iterator_traits< ::boost::fusion::joint_view_iterator<Category, First, Last, Concat> > | |
64 | { }; | |
65 | } | |
66 | #endif | |
67 | ||
68 | #endif | |
69 | ||
70 |