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diff --git a/boost/geometry/algorithms/detail/covered_by/implementation.hpp b/boost/geometry/algorithms/detail/covered_by/implementation.hpp
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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
+
+// This file was modified by Oracle on 2013, 2014, 2017.
+// Modifications copyright (c) 2013-2017 Oracle and/or its affiliates.
+
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
+// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
+
+// 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_COVERED_BY_IMPLEMENTATION_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_COVERED_BY_IMPLEMENTATION_HPP
+
+
+#include <cstddef>
+
+#include <boost/geometry/algorithms/detail/covered_by/interface.hpp>
+#include <boost/geometry/algorithms/detail/within/implementation.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace covered_by {
+
+struct use_point_in_geometry
+{
+    template <typename Geometry1, typename Geometry2, typename Strategy>
+    static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy)
+    {
+        return detail::within::point_in_geometry(geometry1, geometry2, strategy) >= 0;
+    }
+};
+
+struct use_relate
+{
+    template <typename Geometry1, typename Geometry2, typename Strategy>
+    static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy)
+    {
+        typedef typename detail::de9im::static_mask_covered_by_type
+            <
+                Geometry1, Geometry2
+            >::type covered_by_mask;
+        return geometry::relate(geometry1, geometry2, covered_by_mask(), strategy);
+    }
+};
+
+}} // namespace detail::covered_by
+#endif // DOXYGEN_NO_DETAIL
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+template <typename Point, typename Box>
+struct covered_by<Point, Box, point_tag, box_tag>
+{
+    template <typename Strategy>
+    static inline bool apply(Point const& point, Box const& box, Strategy const& strategy)
+    {
+        ::boost::ignore_unused_variable_warning(strategy);
+        return strategy.apply(point, box);
+    }
+};
+
+template <typename Box1, typename Box2>
+struct covered_by<Box1, Box2, box_tag, box_tag>
+{
+    template <typename Strategy>
+    static inline bool apply(Box1 const& box1, Box2 const& box2, Strategy const& strategy)
+    {
+        assert_dimension_equal<Box1, Box2>();
+        ::boost::ignore_unused_variable_warning(strategy);
+        return strategy.apply(box1, box2);
+    }
+};
+
+
+// P/P
+
+template <typename Point1, typename Point2>
+struct covered_by<Point1, Point2, point_tag, point_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename Point, typename MultiPoint>
+struct covered_by<Point, MultiPoint, point_tag, multi_point_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename MultiPoint, typename Point>
+struct covered_by<MultiPoint, Point, multi_point_tag, point_tag>
+    : public detail::within::multi_point_point
+{};
+
+template <typename MultiPoint1, typename MultiPoint2>
+struct covered_by<MultiPoint1, MultiPoint2, multi_point_tag, multi_point_tag>
+    : public detail::within::multi_point_multi_point
+{};
+
+// P/L
+
+template <typename Point, typename Segment>
+struct covered_by<Point, Segment, point_tag, segment_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename Point, typename Linestring>
+struct covered_by<Point, Linestring, point_tag, linestring_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename Point, typename MultiLinestring>
+struct covered_by<Point, MultiLinestring, point_tag, multi_linestring_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename MultiPoint, typename Segment>
+struct covered_by<MultiPoint, Segment, multi_point_tag, segment_tag>
+    : public detail::within::multi_point_single_geometry<false>
+{};
+
+template <typename MultiPoint, typename Linestring>
+struct covered_by<MultiPoint, Linestring, multi_point_tag, linestring_tag>
+    : public detail::within::multi_point_single_geometry<false>
+{};
+
+template <typename MultiPoint, typename MultiLinestring>
+struct covered_by<MultiPoint, MultiLinestring, multi_point_tag, multi_linestring_tag>
+    : public detail::within::multi_point_multi_geometry<false>
+{};
+
+// P/A
+
+template <typename Point, typename Ring>
+struct covered_by<Point, Ring, point_tag, ring_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename Point, typename Polygon>
+struct covered_by<Point, Polygon, point_tag, polygon_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename Point, typename MultiPolygon>
+struct covered_by<Point, MultiPolygon, point_tag, multi_polygon_tag>
+    : public detail::covered_by::use_point_in_geometry
+{};
+
+template <typename MultiPoint, typename Ring>
+struct covered_by<MultiPoint, Ring, multi_point_tag, ring_tag>
+    : public detail::within::multi_point_single_geometry<false>
+{};
+
+template <typename MultiPoint, typename Polygon>
+struct covered_by<MultiPoint, Polygon, multi_point_tag, polygon_tag>
+    : public detail::within::multi_point_single_geometry<false>
+{};
+
+template <typename MultiPoint, typename MultiPolygon>
+struct covered_by<MultiPoint, MultiPolygon, multi_point_tag, multi_polygon_tag>
+    : public detail::within::multi_point_multi_geometry<false>
+{};
+
+// L/L
+
+template <typename Linestring1, typename Linestring2>
+struct covered_by<Linestring1, Linestring2, linestring_tag, linestring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Linestring, typename MultiLinestring>
+struct covered_by<Linestring, MultiLinestring, linestring_tag, multi_linestring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiLinestring, typename Linestring>
+struct covered_by<MultiLinestring, Linestring, multi_linestring_tag, linestring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiLinestring1, typename MultiLinestring2>
+struct covered_by<MultiLinestring1, MultiLinestring2, multi_linestring_tag, multi_linestring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+// L/A
+
+template <typename Linestring, typename Ring>
+struct covered_by<Linestring, Ring, linestring_tag, ring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiLinestring, typename Ring>
+struct covered_by<MultiLinestring, Ring, multi_linestring_tag, ring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Linestring, typename Polygon>
+struct covered_by<Linestring, Polygon, linestring_tag, polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiLinestring, typename Polygon>
+struct covered_by<MultiLinestring, Polygon, multi_linestring_tag, polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Linestring, typename MultiPolygon>
+struct covered_by<Linestring, MultiPolygon, linestring_tag, multi_polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiLinestring, typename MultiPolygon>
+struct covered_by<MultiLinestring, MultiPolygon, multi_linestring_tag, multi_polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+// A/A
+
+template <typename Ring1, typename Ring2>
+struct covered_by<Ring1, Ring2, ring_tag, ring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Ring, typename Polygon>
+struct covered_by<Ring, Polygon, ring_tag, polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Polygon, typename Ring>
+struct covered_by<Polygon, Ring, polygon_tag, ring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Polygon1, typename Polygon2>
+struct covered_by<Polygon1, Polygon2, polygon_tag, polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Ring, typename MultiPolygon>
+struct covered_by<Ring, MultiPolygon, ring_tag, multi_polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiPolygon, typename Ring>
+struct covered_by<MultiPolygon, Ring, multi_polygon_tag, ring_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename Polygon, typename MultiPolygon>
+struct covered_by<Polygon, MultiPolygon, polygon_tag, multi_polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiPolygon, typename Polygon>
+struct covered_by<MultiPolygon, Polygon, multi_polygon_tag, polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+template <typename MultiPolygon1, typename MultiPolygon2>
+struct covered_by<MultiPolygon1, MultiPolygon2, multi_polygon_tag, multi_polygon_tag>
+    : public detail::covered_by::use_relate
+{};
+
+} // namespace dispatch
+#endif // DOXYGEN_NO_DISPATCH
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_COVERED_BY_IMPLEMENTATION_HPP