64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
// Boost.Geometry
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// Copyright (c) 2021, Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
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#define BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
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#include <boost/geometry/core/cs.hpp>
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#include <boost/geometry/core/static_assert.hpp>
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#include <boost/geometry/strategies/distance.hpp>
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namespace boost { namespace geometry
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{
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namespace strategies { namespace distance
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail
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{
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template <typename Strategies>
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struct comparable
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: public Strategies
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{
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comparable() = default;
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explicit comparable(Strategies const& strategies)
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: Strategies(strategies)
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{}
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template <typename Geometry1, typename Geometry2>
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auto distance(Geometry1 const& g1, Geometry2 const& g2) const
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{
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return strategy::distance::services::get_comparable
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<
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decltype(Strategies::distance(g1, g2))
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>::apply(Strategies::distance(g1, g2));
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}
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};
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template <typename Strategies>
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inline comparable<Strategies> make_comparable(Strategies const& strategies)
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{
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return comparable<Strategies>(strategies);
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}
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace strategies::distance
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
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