Added thirdparty: boost library

thirdparty/include/boost/geometry/strategy/cartesian/area_box.hpp

@@ -0,0 +1,57 @@
+// Boost.Geometry
+
+// Copyright (c) 2021, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_STRATEGY_CARTESIAN_AREA_BOX_HPP
+#define BOOST_GEOMETRY_STRATEGY_CARTESIAN_AREA_BOX_HPP
+
+
+#include <boost/geometry/core/access.hpp>
+#include <boost/geometry/strategy/area.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+namespace strategy { namespace area
+{
+
+template
+<
+    typename CalculationType = void
+>
+class cartesian_box
+{
+public:
+    template <typename Box>
+    struct result_type
+        : strategy::area::detail::result_type
+            <
+                Box,
+                CalculationType
+            >
+    {};
+
+    template <typename Box>
+    static inline auto apply(Box const& box)
+    {
+        typedef typename result_type<Box>::type return_type;
+
+        return return_type(get<max_corner, 0>(box) - get<min_corner, 0>(box))
+             * return_type(get<max_corner, 1>(box) - get<min_corner, 1>(box));
+    }
+};
+
+
+}} // namespace strategy::area
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_STRATEGY_CARTESIAN_AREA_BOX_HPP