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diff --git a/boost/geometry/algorithms/detail/closest_points/utilities.hpp b/boost/geometry/algorithms/detail/closest_points/utilities.hpp
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+// Boost.Geometry
+
+// Copyright (c) 2021-2023, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_CLOSEST_POINTS_UTILITIES_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_CLOSEST_POINTS_UTILITIES_HPP
+
+#include <boost/geometry/algorithms/detail/assign_indexed_point.hpp>
+#include <boost/geometry/util/algorithm.hpp>
+
+#include <boost/geometry/strategies/distance.hpp>
+
+namespace boost { namespace geometry
+{
+
+namespace detail { namespace closest_points
+{
+
+struct set_segment_from_points
+{
+    template <typename Point1, typename Point2, typename Segment>
+    static inline void apply(Point1 const& p1, Point2 const& p2, Segment& segment)
+    {
+        assign_point_to_index<0>(p1, segment);
+        assign_point_to_index<1>(p2, segment);
+    }
+};
+
+
+struct swap_segment_points
+{
+    template <typename Segment>
+    static inline void apply(Segment& segment)
+    {
+        geometry::detail::for_each_dimension<Segment>([&](auto index)
+        {
+            auto temp = get<0,index>(segment);
+            set<0,index>(segment, get<1,index>(segment));
+            set<1,index>(segment, temp);
+        });
+    }
+};
+
+template <typename Geometry1, typename Geometry2, typename Strategies>
+using distance_strategy_t = decltype(
+    std::declval<Strategies>().distance(std::declval<Geometry1>(), std::declval<Geometry2>()));
+
+template <typename Geometry1, typename Geometry2, typename Strategies>
+using creturn_t = typename strategy::distance::services::return_type
+    <
+        typename strategy::distance::services::comparable_type
+            <
+                distance_strategy_t<Geometry1, Geometry2, Strategies>
+            >::type,
+        typename point_type<Geometry1>::type,
+        typename point_type<Geometry2>::type
+    >::type;
+
+
+}} // namespace detail::closest_points
+
+}} // namespace boost::geometry
+
+#endif //BOOST_GEOMETRY_ALGORITHMS_DETAIL_CLOSEST_POINTS_UTILITIES_HPP