ceph/src/boost/boost/geometry/policies/disjoint_interrupt_policy.hpp

   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