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1 | // Boost.Geometry |
2 | ||
3 | // Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland. | |
4 | ||
5 | // Use, modification and distribution is subject to the Boost Software License, | |
6 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP | |
10 | #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP | |
11 | ||
12 | #include <boost/range/iterator.hpp> | |
13 | #include <boost/range/value_type.hpp> | |
14 | ||
15 | #include <boost/geometry/core/interior_type.hpp> | |
16 | ||
17 | namespace boost { namespace geometry | |
18 | { | |
19 | ||
20 | #ifndef DOXYGEN_NO_DETAIL | |
21 | namespace detail | |
22 | { | |
23 | ||
24 | /*! | |
25 | \brief Structure defining the type of interior rings iterator | |
26 | \note If the Geometry is const, const iterator is defined. | |
27 | \tparam Geometry \tparam_geometry | |
28 | */ | |
29 | template <typename Geometry> | |
30 | struct interior_iterator | |
31 | { | |
32 | typedef typename boost::range_iterator | |
33 | < | |
34 | typename geometry::interior_type<Geometry>::type | |
35 | >::type type; | |
36 | }; | |
37 | ||
38 | template <typename BaseT, typename T> | |
39 | struct copy_const | |
40 | { | |
41 | typedef T type; | |
42 | }; | |
43 | ||
44 | template <typename BaseT, typename T> | |
45 | struct copy_const<BaseT const, T> | |
46 | { | |
47 | typedef T const type; | |
48 | }; | |
49 | ||
50 | template <typename Geometry> | |
51 | struct interior_ring_iterator | |
52 | { | |
53 | typedef typename boost::range_iterator | |
54 | < | |
55 | typename copy_const | |
56 | < | |
57 | typename geometry::interior_type<Geometry>::type, | |
58 | typename boost::range_value | |
59 | < | |
60 | typename geometry::interior_type<Geometry>::type | |
61 | >::type | |
62 | >::type | |
63 | >::type type; | |
64 | }; | |
65 | ||
66 | } // namespace detail | |
67 | #endif // DOXYGEN_NO_DETAIL | |
68 | ||
69 | }} // namespace boost::geometry | |
70 | ||
71 | #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP |