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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | // Copyright (c) 2008-2014 Bruno Lalande, Paris, France. | |
5 | // Copyright (c) 2009-2014 Mateusz Loskot, London, UK. | |
6 | // Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland. | |
7 | ||
8 | // This file was modified by Oracle on 2013-2014. | |
9 | // Modifications copyright (c) 2013-2014, Oracle and/or its affiliates. | |
10 | ||
11 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle | |
12 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
13 | ||
14 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
15 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
16 | ||
17 | // Use, modification and distribution is subject to the Boost Software License, | |
18 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
19 | // http://www.boost.org/LICENSE_1_0.txt) | |
20 | ||
21 | #ifndef BOOST_GEOMETRY_ALGORITHMS_POLICIES_DISJOINT_INTERRUPT_POLICY_HPP | |
22 | #define BOOST_GEOMETRY_ALGORITHMS_POLICIES_DISJOINT_INTERRUPT_POLICY_HPP | |
23 | ||
24 | #include <boost/range.hpp> | |
25 | ||
26 | ||
27 | namespace boost { namespace geometry | |
28 | { | |
29 | ||
30 | ||
31 | #ifndef DOXYGEN_NO_DETAIL | |
32 | namespace detail { namespace disjoint | |
33 | { | |
34 | ||
35 | ||
36 | struct disjoint_interrupt_policy | |
37 | { | |
38 | static bool const enabled = true; | |
39 | bool has_intersections; | |
40 | ||
41 | inline disjoint_interrupt_policy() | |
42 | : has_intersections(false) | |
43 | {} | |
44 | ||
45 | template <typename Range> | |
46 | inline bool apply(Range const& range) | |
47 | { | |
48 | // If there is any IP in the range, it is NOT disjoint | |
49 | if (boost::size(range) > 0) | |
50 | { | |
51 | has_intersections = true; | |
52 | return true; | |
53 | } | |
54 | return false; | |
55 | } | |
56 | }; | |
57 | ||
58 | ||
59 | ||
60 | }} // namespace detail::disjoint | |
61 | #endif // DOXYGEN_NO_DETAIL | |
62 | ||
63 | ||
64 | }} // namespace boost::geometry | |
65 | ||
66 | ||
67 | #endif // BOOST_GEOMETRY_ALGORITHMS_POLICIES_DISJOINT_INTERRUPT_POLICY_HPP |