ceph/src/boost/boost/geometry/strategies/cartesian/disjoint_box_box.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
   6 // Copyright (c) 2013-2015 Adam Wulkiewicz, Lodz, Poland.
   7
   8 // This file was modified by Oracle on 2013-2018.
   9 // Modifications copyright (c) 2013-2018, 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_STRATEGIES_CARTESIAN_DISJOINT_BOX_BOX_HPP
  22 #define BOOST_GEOMETRY_STRATEGIES_CARTESIAN_DISJOINT_BOX_BOX_HPP
  23
  24 #include <cstddef>
  25
  26 #include <boost/geometry/core/access.hpp>
  27 #include <boost/geometry/core/coordinate_dimension.hpp>
  28 #include <boost/geometry/core/tags.hpp>
  29
  30 #include <boost/geometry/strategies/disjoint.hpp>
  31
  32
  33 namespace boost { namespace geometry { namespace strategy { namespace disjoint
  34 {
  35
  36 #ifndef DOXYGEN_NO_DETAIL
  37 namespace detail
  38 {
  39
  40 template
  41 <
  42     typename Box1, typename Box2,
  43     std::size_t Dimension = 0,
  44     std::size_t DimensionCount = dimension<Box1>::value
  45 >
  46 struct box_box
  47 {
  48     static inline bool apply(Box1 const& box1, Box2 const& box2)
  49     {
  50         if (get<max_corner, Dimension>(box1) < get<min_corner, Dimension>(box2))
  51         {
  52             return true;
  53         }
  54         if (get<min_corner, Dimension>(box1) > get<max_corner, Dimension>(box2))
  55         {
  56             return true;
  57         }
  58         return box_box
  59             <
  60                 Box1, Box2,
  61                 Dimension + 1, DimensionCount
  62             >::apply(box1, box2);
  63     }
  64 };
  65
  66
  67 template <typename Box1, typename Box2, std::size_t DimensionCount>
  68 struct box_box<Box1, Box2, DimensionCount, DimensionCount>
  69 {
  70     static inline bool apply(Box1 const& , Box2 const& )
  71     {
  72         return false;
  73     }
  74 };
  75
  76 } // namespace detail
  77 #endif // DOXYGEN_NO_DETAIL
  78
  79
  80 struct cartesian_box_box
  81 {
  82     template <typename Box1, typename Box2>
  83     static inline bool apply(Box1 const& box1, Box2 const& box2)
  84     {
  85         return detail::box_box<Box1, Box2>::apply(box1, box2);
  86     }
  87 };
  88
  89
  90 #ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
  91
  92
  93 namespace services
  94 {
  95
  96 template <typename Box1, typename Box2, int TopDim1, int TopDim2>
  97 struct default_strategy<Box1, Box2, box_tag, box_tag, TopDim1, TopDim2, cartesian_tag, cartesian_tag>
  98 {
  99     typedef disjoint::cartesian_box_box type;
 100 };
 101
 102
 103 } // namespace services
 104
 105
 106 #endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
 107
 108
 109 }}}} // namespace boost::geometry::strategy::disjoint
 110
 111
 112 #endif // BOOST_GEOMETRY_STRATEGIES_CARTESIAN_DISJOINT_BOX_BOX_HPP