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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
+
+// This file was modified by Oracle on 2013, 2014, 2015.
+// Modifications copyright (c) 2013-2015 Oracle and/or its affiliates.
+
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Use, modification and distribution is subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_IMPLEMENTATION_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_IMPLEMENTATION_HPP
+
+
+#include <boost/geometry/core/tags.hpp>
+
+#include <boost/geometry/algorithms/detail/relate/interface.hpp>
+
+#include <boost/geometry/algorithms/detail/relate/point_point.hpp>
+#include <boost/geometry/algorithms/detail/relate/point_geometry.hpp>
+#include <boost/geometry/algorithms/detail/relate/linear_linear.hpp>
+#include <boost/geometry/algorithms/detail/relate/linear_areal.hpp>
+#include <boost/geometry/algorithms/detail/relate/areal_areal.hpp>
+
+
+namespace boost { namespace geometry {
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch {
+
+template <typename Point1, typename Point2>
+struct relate<Point1, Point2, point_tag, point_tag, 0, 0, false>
+    : detail::relate::point_point<Point1, Point2>
+{};
+
+template <typename Point, typename MultiPoint>
+struct relate<Point, MultiPoint, point_tag, multi_point_tag, 0, 0, false>
+    : detail::relate::point_multipoint<Point, MultiPoint>
+{};
+
+template <typename MultiPoint, typename Point>
+struct relate<MultiPoint, Point, multi_point_tag, point_tag, 0, 0, false>
+    : detail::relate::multipoint_point<MultiPoint, Point>
+{};
+
+template <typename MultiPoint1, typename MultiPoint2>
+struct relate<MultiPoint1, MultiPoint2, multi_point_tag, multi_point_tag, 0, 0, false>
+    : detail::relate::multipoint_multipoint<MultiPoint1, MultiPoint2>
+{};
+
+// TODO - for now commented out because before implementing it we must consider:
+// 1. how the Box degenerated to a Point should be treated
+// 2. what should be the definition of a Box degenerated to a Point
+// 3. what fields should the matrix/mask contain for dimension > 2 and dimension > 9
+//
+//template <typename Point, typename Box, int TopDim2>
+//struct relate<Point, Box, point_tag, box_tag, 0, TopDim2, false>
+//    : detail::relate::point_box<Point, Box>
+//{};
+//
+//template <typename Box, typename Point, int TopDim1>
+//struct relate<Box, Point, box_tag, point_tag, TopDim1, 0, false>
+//    : detail::relate::box_point<Box, Point>
+//{};
+
+
+template <typename Point, typename Geometry, typename Tag2, int TopDim2>
+struct relate<Point, Geometry, point_tag, Tag2, 0, TopDim2, true>
+    : detail::relate::point_geometry<Point, Geometry>
+{};
+
+template <typename Geometry, typename Point, typename Tag1, int TopDim1>
+struct relate<Geometry, Point, Tag1, point_tag, TopDim1, 0, true>
+    : detail::relate::geometry_point<Geometry, Point>
+{};
+
+
+template <typename Linear1, typename Linear2, typename Tag1, typename Tag2>
+struct relate<Linear1, Linear2, Tag1, Tag2, 1, 1, true>
+    : detail::relate::linear_linear<Linear1, Linear2>
+{};
+
+
+template <typename Linear, typename Areal, typename Tag1, typename Tag2>
+struct relate<Linear, Areal, Tag1, Tag2, 1, 2, true>
+    : detail::relate::linear_areal<Linear, Areal>
+{};
+
+template <typename Areal, typename Linear, typename Tag1, typename Tag2>
+struct relate<Areal, Linear, Tag1, Tag2, 2, 1, true>
+    : detail::relate::areal_linear<Areal, Linear>
+{};
+
+
+template <typename Areal1, typename Areal2, typename Tag1, typename Tag2>
+struct relate<Areal1, Areal2, Tag1, Tag2, 2, 2, true>
+    : detail::relate::areal_areal<Areal1, Areal2>
+{};
+
+} // namespace dispatch
+#endif // DOXYGEN_NO_DISPATCH
+
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_IMPLEMENTATION_HPP