Chris@16: // Boost.Geometry (aka GGL, Generic Geometry Library)
Chris@16: 
Chris@16: // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
Chris@16: // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
Chris@16: // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
Chris@16: 
Chris@16: // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
Chris@16: // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software License,
Chris@16: // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP
Chris@16: #define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: 
Chris@16: #include <boost/type_traits/is_arithmetic.hpp>
Chris@16: 
Chris@16: #include <boost/geometry/core/access.hpp>
Chris@16: #include <boost/geometry/core/cs.hpp>
Chris@16: #include <boost/geometry/core/coordinate_dimension.hpp>
Chris@16: #include <boost/geometry/core/coordinate_type.hpp>
Chris@16: #include <boost/geometry/core/tags.hpp>
Chris@16: 
Chris@16: namespace boost { namespace geometry
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: #ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
Chris@16: namespace traits
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: #ifndef DOXYGEN_NO_DETAIL
Chris@16: namespace detail
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: // Create class and specialization to indicate the tag
Chris@16: // for normal cases and the case that the type of the c-array is arithmetic
Chris@16: template <bool>
Chris@16: struct c_array_tag
Chris@16: {
Chris@16:     typedef geometry_not_recognized_tag type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <>
Chris@16: struct c_array_tag<true>
Chris@16: {
Chris@16:     typedef point_tag type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: } // namespace detail
Chris@16: #endif // DOXYGEN_NO_DETAIL
Chris@16: 
Chris@16: 
Chris@16: // Assign the point-tag, preventing arrays of points getting a point-tag
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct tag<CoordinateType[DimensionCount]>
Chris@16:     : detail::c_array_tag<boost::is_arithmetic<CoordinateType>::value> {};
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct coordinate_type<CoordinateType[DimensionCount]>
Chris@16: {
Chris@16:     typedef CoordinateType type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct dimension<CoordinateType[DimensionCount]>: boost::mpl::int_<DimensionCount> {};
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount, std::size_t Dimension>
Chris@16: struct access<CoordinateType[DimensionCount], Dimension>
Chris@16: {
Chris@16:     static inline CoordinateType get(CoordinateType const p[DimensionCount])
Chris@16:     {
Chris@16:         return p[Dimension];
Chris@16:     }
Chris@16: 
Chris@16:     static inline void set(CoordinateType p[DimensionCount],
Chris@16:         CoordinateType const& value)
Chris@16:     {
Chris@16:         p[Dimension] = value;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: } // namespace traits
Chris@16: #endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
Chris@16: 
Chris@16: 
Chris@16: }} // namespace boost::geometry
Chris@16: 
Chris@16: 
Chris@16: #define BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(CoordinateSystem) \
Chris@16:     namespace boost { namespace geometry { namespace traits { \
Chris@16:     template <typename T, std::size_t N> \
Chris@16:     struct coordinate_system<T[N]> \
Chris@16:     { \
Chris@16:         typedef CoordinateSystem type; \
Chris@16:     }; \
Chris@16:     }}}
Chris@16: 
Chris@16: 
Chris@16: #endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_C_ARRAY_HPP