ceph/src/boost/boost/geometry/algorithms/detail/equals/point_point.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 2013-2020.
   9 // Modifications copyright (c) 2013-2020, 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_DETAIL_EQUALS_POINT_POINT_HPP
  22 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EQUALS_POINT_POINT_HPP
  23
  24
  25 #include <type_traits>
  26
  27 #include <boost/geometry/strategies/detail.hpp>
  28
  29
  30 namespace boost { namespace geometry
  31 {
  32
  33 #ifndef DOXYGEN_NO_DETAIL
  34 namespace detail { namespace equals
  35 {
  36
  37 /*!
  38     \brief Internal utility function to detect of points are disjoint
  39     \note To avoid circular references
  40  */
  41 template
  42 <
  43     typename Point1, typename Point2, typename Strategy,
  44     std::enable_if_t<strategies::detail::is_umbrella_strategy<Strategy>::value, int> = 0
  45 >
  46 inline bool equals_point_point(Point1 const& point1, Point2 const& point2,
  47                                Strategy const& strategy)
  48 {
  49     typedef decltype(strategy.relate(point1, point2)) strategy_type;
  50     return strategy_type::apply(point1, point2);
  51 }
  52
  53 template
  54 <
  55     typename Point1, typename Point2, typename Strategy,
  56     std::enable_if_t<! strategies::detail::is_umbrella_strategy<Strategy>::value, int> = 0
  57 >
  58 inline bool equals_point_point(Point1 const& point1, Point2 const& point2,
  59                                Strategy const& )
  60 {
  61     return Strategy::apply(point1, point2);
  62 }
  63
  64 }} // namespace detail::equals
  65 #endif // DOXYGEN_NO_DETAIL
  66
  67 }} // namespace boost::geometry
  68
  69 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EQUALS_POINT_POINT_HPP