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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2013 Adam Wulkiewicz, Lodz, Poland
- // 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_OVERLAY_DO_REVERSE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_DO_REVERSE_HPP
- #include <boost/geometry/core/point_order.hpp>
- namespace boost { namespace geometry
- {
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail { namespace overlay
- {
- // Metafunction helper for intersection and union
- template <order_selector Selector, bool Reverse = false>
- struct do_reverse {};
- template <>
- struct do_reverse<clockwise, false> : boost::false_type {};
- template <>
- struct do_reverse<clockwise, true> : boost::true_type {};
- template <>
- struct do_reverse<counterclockwise, false> : boost::true_type {};
- template <>
- struct do_reverse<counterclockwise, true> : boost::false_type {};
- }} // namespace detail::overlay
- #endif // DOXYGEN_NO_DETAIL
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_DO_REVERSE_HPP
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