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assign_box_corners.hpp
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/usr/include/boost/geometry/algorithms/detail/counting.hpp
(2746B)
// Boost.Geometry (aka GGL, Generic Geometry Library) // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands. // Copyright (c) 2008-2014 Bruno Lalande, Paris, France. // Copyright (c) 2009-2014 Mateusz Loskot, London, UK. // Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland. // This file was modified by Oracle on 2014. // Modifications copyright (c) 2014, Oracle and/or its affiliates. // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. // 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_COUNTING_HPP #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_COUNTING_HPP #include <cstddef> #include <boost/range.hpp> #include <boost/geometry/core/exterior_ring.hpp> #include <boost/geometry/core/interior_rings.hpp> #include <boost/geometry/util/range.hpp> #include <boost/geometry/algorithms/detail/interior_iterator.hpp> namespace boost { namespace geometry { #ifndef DOXYGEN_NO_DETAIL namespace detail { namespace counting { template <std::size_t D> struct other_count { template <typename Geometry> static inline std::size_t apply(Geometry const&) { return D; } template <typename Geometry> static inline std::size_t apply(Geometry const&, bool) { return D; } }; template <typename RangeCount> struct polygon_count { template <typename Polygon> static inline std::size_t apply(Polygon const& poly) { std::size_t n = RangeCount::apply(exterior_ring(poly)); typename interior_return_type<Polygon const>::type rings = interior_rings(poly); for (typename detail::interior_iterator<Polygon const>::type it = boost::begin(rings); it != boost::end(rings); ++it) { n += RangeCount::apply(*it); } return n; } }; template <typename SingleCount> struct multi_count { template <typename MultiGeometry> static inline std::size_t apply(MultiGeometry const& geometry) { std::size_t n = 0; for (typename boost::range_iterator<MultiGeometry const>::type it = boost::begin(geometry); it != boost::end(geometry); ++it) { n += SingleCount::apply(*it); } return n; } }; }} // namespace detail::counting #endif // DOXYGEN_NO_DETAIL }} // namespace boost::geometry #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_COUNTING_HPP
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