84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
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// This file was modified by Oracle on 2014.
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// Modifications copyright (c) 2014, Oracle and/or its affiliates.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_LESS_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_LESS_HPP
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#include <boost/geometry/core/coordinate_dimension.hpp>
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#include <boost/geometry/core/coordinate_type.hpp>
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#include <boost/geometry/util/math.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DISPATCH
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namespace detail_dispatch { namespace relate {
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// TODO: Integrate it with geometry::less?
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template <typename Point1,
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typename Point2,
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std::size_t I = 0,
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std::size_t D = geometry::dimension<Point1>::value>
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struct less
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{
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static inline bool apply(Point1 const& left, Point2 const& right)
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{
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typename geometry::coordinate_type<Point1>::type
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cleft = geometry::get<I>(left);
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typename geometry::coordinate_type<Point2>::type
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cright = geometry::get<I>(right);
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if ( geometry::math::equals(cleft, cright) )
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{
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return less<Point1, Point2, I + 1, D>::apply(left, right);
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}
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else
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{
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return cleft < cright;
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}
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}
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};
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template <typename Point1, typename Point2, std::size_t D>
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struct less<Point1, Point2, D, D>
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{
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static inline bool apply(Point1 const&, Point2 const&)
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{
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return false;
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}
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};
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}} // namespace detail_dispatch::relate
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#endif
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace relate {
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struct less
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{
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template <typename Point1, typename Point2>
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inline bool operator()(Point1 const& point1, Point2 const& point2) const
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{
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return detail_dispatch::relate::less<Point1, Point2>::apply(point1, point2);
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}
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};
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}} // namespace detail::relate
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RELATE_LESS_HPP
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