1 | // Boost.Geometry Index |
2 | // |
3 | // Insert iterator |
4 | // |
5 | // Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland. |
6 | // |
7 | // Use, modification and distribution is subject to the Boost Software License, |
8 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
9 | // http://www.boost.org/LICENSE_1_0.txt) |
10 | |
11 | #ifndef BOOST_GEOMETRY_INDEX_INSERTER_HPP |
12 | #define BOOST_GEOMETRY_INDEX_INSERTER_HPP |
13 | |
14 | #include <iterator> |
15 | |
16 | /*! |
17 | \defgroup inserters Inserters (boost::geometry::index::) |
18 | */ |
19 | |
20 | namespace boost { namespace geometry { namespace index { |
21 | |
22 | template <class Container> |
23 | class insert_iterator : |
24 | public std::iterator<std::output_iterator_tag, void, void, void, void> |
25 | { |
26 | public: |
27 | typedef Container container_type; |
28 | |
29 | inline explicit insert_iterator(Container & c) |
30 | : container(&c) |
31 | {} |
32 | |
33 | insert_iterator & operator=(typename Container::value_type const& value) |
34 | { |
35 | container->insert(value); |
36 | return *this; |
37 | } |
38 | |
39 | insert_iterator & operator* () |
40 | { |
41 | return *this; |
42 | } |
43 | |
44 | insert_iterator & operator++ () |
45 | { |
46 | return *this; |
47 | } |
48 | |
49 | insert_iterator operator++(int) |
50 | { |
51 | return *this; |
52 | } |
53 | |
54 | private: |
55 | Container * container; |
56 | }; |
57 | |
58 | /*! |
59 | \brief Insert iterator generator. |
60 | |
61 | Returns insert iterator capable to insert values to the container |
62 | (spatial index) which has member function insert(value_type const&) defined. |
63 | |
64 | \ingroup inserters |
65 | |
66 | \param c The reference to the container (spatial index) to which values will be inserted. |
67 | |
68 | \return The insert iterator inserting values to the container. |
69 | */ |
70 | template <typename Container> |
71 | insert_iterator<Container> inserter(Container & c) |
72 | { |
73 | return insert_iterator<Container>(c); |
74 | } |
75 | |
76 | }}} // namespace boost::geometry::index |
77 | |
78 | #endif // BOOST_GEOMETRY_INDEX_INSERTER_HPP |
79 | |