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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
- // 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_UTIL_FOR_EACH_COORDINATE_HPP
- #define BOOST_GEOMETRY_UTIL_FOR_EACH_COORDINATE_HPP
- #include <boost/concept/requires.hpp>
- #include <boost/geometry/geometries/concepts/point_concept.hpp>
- #include <boost/geometry/util/add_const_if_c.hpp>
- namespace boost { namespace geometry
- {
- #ifndef DOXYGEN_NO_DETAIL
- namespace detail
- {
- template <typename Point, int Dimension, int DimensionCount, bool IsConst>
- struct coordinates_scanner
- {
- template <typename Op>
- static inline Op apply(typename add_const_if_c
- <
- IsConst,
- Point
- >::type& point, Op operation)
- {
- operation.template apply<Point, Dimension>(point);
- return coordinates_scanner
- <
- Point,
- Dimension+1,
- DimensionCount,
- IsConst
- >::apply(point, operation);
- }
- };
- template <typename Point, int DimensionCount, bool IsConst>
- struct coordinates_scanner<Point, DimensionCount, DimensionCount, IsConst>
- {
- template <typename Op>
- static inline Op apply(typename add_const_if_c
- <
- IsConst,
- Point
- >::type& , Op operation)
- {
- return operation;
- }
- };
- } // namespace detail
- #endif // DOXYGEN_NO_DETAIL
- template <typename Point, typename Op>
- inline void for_each_coordinate(Point& point, Op operation)
- {
- BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
- typedef typename detail::coordinates_scanner
- <
- Point, 0, dimension<Point>::type::value, false
- > scanner;
- scanner::apply(point, operation);
- }
- template <typename Point, typename Op>
- inline Op for_each_coordinate(Point const& point, Op operation)
- {
- BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point>) );
- typedef typename detail::coordinates_scanner
- <
- Point, 0, dimension<Point>::type::value, true
- > scanner;
- return scanner::apply(point, operation);
- }
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_UTIL_FOR_EACH_COORDINATE_HPP
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