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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_TRANSFORM_VIEW_ITERATOR_07162005_1033) | |
8 | #define FUSION_TRANSFORM_VIEW_ITERATOR_07162005_1033 | |
9 | ||
10 | #include <boost/fusion/support/config.hpp> | |
11 | #include <boost/fusion/support/iterator_base.hpp> | |
12 | #include <boost/fusion/support/category_of.hpp> | |
13 | #include <boost/fusion/iterator/mpl/convert_iterator.hpp> | |
14 | #include <boost/fusion/adapted/mpl/mpl_iterator.hpp> | |
15 | #include <boost/fusion/view/transform_view/detail/deref_impl.hpp> | |
16 | #include <boost/fusion/view/transform_view/detail/next_impl.hpp> | |
17 | #include <boost/fusion/view/transform_view/detail/prior_impl.hpp> | |
18 | #include <boost/fusion/view/transform_view/detail/value_of_impl.hpp> | |
19 | #include <boost/fusion/view/transform_view/detail/advance_impl.hpp> | |
20 | #include <boost/fusion/view/transform_view/detail/distance_impl.hpp> | |
21 | #include <boost/fusion/view/transform_view/detail/equal_to_impl.hpp> | |
22 | ||
23 | namespace boost { namespace fusion | |
24 | { | |
25 | // Unary Version | |
26 | struct transform_view_iterator_tag; | |
27 | ||
28 | template <typename First, typename F> | |
29 | struct transform_view_iterator | |
30 | : iterator_base<transform_view_iterator<First, F> > | |
31 | { | |
32 | typedef transform_view_iterator_tag fusion_tag; | |
33 | typedef convert_iterator<First> converter; | |
34 | typedef typename converter::type first_type; | |
35 | typedef typename traits::category_of<first_type>::type category; | |
36 | typedef F transform_type; | |
37 | ||
38 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
39 | transform_view_iterator(First const& in_first, F const& in_f) | |
40 | : first(converter::call(in_first)), f(in_f) {} | |
41 | ||
42 | first_type first; | |
43 | transform_type f; | |
44 | ||
45 | private: | |
46 | // silence MSVC warning C4512: assignment operator could not be generated | |
47 | transform_view_iterator& operator= (transform_view_iterator const&); | |
48 | }; | |
49 | ||
50 | // Binary Version | |
51 | struct transform_view_iterator2_tag; | |
52 | ||
53 | template <typename First1, typename First2, typename F> | |
54 | struct transform_view_iterator2 | |
55 | : iterator_base<transform_view_iterator2<First1, First2, F> > | |
56 | { | |
57 | typedef transform_view_iterator2_tag fusion_tag; | |
58 | typedef convert_iterator<First1> converter1; | |
59 | typedef convert_iterator<First2> converter2; | |
60 | typedef typename converter1::type first1_type; | |
61 | typedef typename converter2::type first2_type; | |
62 | typedef typename traits::category_of<first1_type>::type category; | |
63 | typedef F transform_type; | |
64 | ||
65 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
66 | transform_view_iterator2(First1 const& in_first1, First2 const& in_first2, F const& in_f) | |
67 | : first1(converter1::call(in_first1)), first2(converter2::call(in_first2)), f(in_f) {} | |
68 | ||
69 | first1_type first1; | |
70 | first2_type first2; | |
71 | transform_type f; | |
72 | ||
73 | private: | |
74 | // silence MSVC warning C4512: assignment operator could not be generated | |
75 | transform_view_iterator2& operator= (transform_view_iterator2 const&); | |
76 | }; | |
77 | }} | |
78 | ||
79 | #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408 | |
80 | namespace std | |
81 | { | |
82 | template <typename First, typename F> | |
83 | struct iterator_traits< ::boost::fusion::transform_view_iterator<First, F> > | |
84 | { }; | |
85 | template <typename First1, typename First2, typename F> | |
86 | struct iterator_traits< ::boost::fusion::transform_view_iterator2<First1, First2, F> > | |
87 | { }; | |
88 | } | |
89 | #endif | |
90 | ||
91 | #endif | |
92 |