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111 lines
2.8 KiB
111 lines
2.8 KiB
// Boost.Geometry (aka GGL, Generic Geometry Library) |
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands. |
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK. |
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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 <boost/type_traits/is_arithmetic.hpp> |
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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<boost::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]>: boost::mpl::int_<DimensionCount> {}; |
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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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