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 disjoint_interrupt_policyboost::geometry::detail::disjoint::disjoint_interrupt_policy41 inline disjoint_interrupt_policy() 42 : has_intersections(false) 43 {} 44 45 template <typename Range> applyboost::geometry::detail::disjoint::disjoint_interrupt_policy46 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 68