// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2020.
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// Modifications copyright (c) 2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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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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#ifndef BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP
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#define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP
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#include <cstddef>
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#include <type_traits>
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#include <boost/geometry/core/access.hpp>
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#include <boost/geometry/core/cs.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/core/tags.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
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namespace traits
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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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// Create class and specialization to indicate the tag
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// for normal cases and the case that the type of the c-array is arithmetic
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template <bool>
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struct c_array_tag
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{
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typedef geometry_not_recognized_tag type;
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};
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template <>
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struct c_array_tag<true>
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{
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typedef point_tag type;
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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// Assign the point-tag, preventing arrays of points getting a point-tag
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template <typename CoordinateType, std::size_t DimensionCount>
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struct tag<CoordinateType[DimensionCount]>
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: detail::c_array_tag<std::is_arithmetic<CoordinateType>::value> {};
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template <typename CoordinateType, std::size_t DimensionCount>
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struct coordinate_type<CoordinateType[DimensionCount]>
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{
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typedef CoordinateType type;
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};
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template <typename CoordinateType, std::size_t DimensionCount>
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struct dimension<CoordinateType[DimensionCount]>
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: std::integral_constant<std::size_t, DimensionCount>
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{};
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template <typename CoordinateType, std::size_t DimensionCount, std::size_t Dimension>
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struct access<CoordinateType[DimensionCount], Dimension>
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{
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static inline CoordinateType get(CoordinateType const p[DimensionCount])
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{
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return p[Dimension];
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}
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static inline void set(CoordinateType p[DimensionCount],
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CoordinateType const& value)
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{
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p[Dimension] = value;
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}
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};
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} // namespace traits
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#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
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}} // namespace boost::geometry
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#define BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(CoordinateSystem) \
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namespace boost { namespace geometry { namespace traits { \
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template <typename T, std::size_t N> \
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struct coordinate_system<T[N]> \
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{ \
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typedef CoordinateSystem type; \
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}; \
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}}}
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#endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP
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