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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. | |
5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. | |
6 | ||
7 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
8 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
9 | ||
10 | // Use, modification and distribution is subject to the Boost Software License, | |
11 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
12 | // http://www.boost.org/LICENSE_1_0.txt) | |
13 | ||
14 | #ifndef BOOST_GEOMETRY_STRATEGIES_TAGS_HPP | |
15 | #define BOOST_GEOMETRY_STRATEGIES_TAGS_HPP | |
16 | ||
17 | ||
18 | namespace boost { namespace geometry | |
19 | { | |
20 | ||
21 | namespace strategy | |
22 | { | |
23 | /*! | |
24 | \brief Indicate compiler/library user that strategy is not implemented. | |
25 | \details Strategies are defined for point types or for point type | |
26 | combinations. If there is no implementation for that specific point type, or point type | |
27 | combination, the calculation cannot be done. To indicate this, this not_implemented | |
28 | class is used as a typedef stub. | |
29 | ||
30 | */ | |
31 | struct not_implemented {}; | |
32 | } | |
33 | ||
34 | ||
35 | struct strategy_tag_distance_point_point {}; | |
36 | struct strategy_tag_distance_point_segment {}; | |
37 | struct strategy_tag_distance_point_box {}; | |
38 | struct strategy_tag_distance_box_box {}; | |
39 | ||
40 | ||
41 | }} // namespace boost::geometry | |
42 | ||
43 | #endif // BOOST_GEOMETRY_STRATEGIES_TAGS_HPP |