| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| |
| // Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands. |
| // Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
| // Copyright (c) 2009-2011 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_MULTI_CORE_RING_TYPE_HPP |
| #define BOOST_GEOMETRY_MULTI_CORE_RING_TYPE_HPP |
| |
| |
| #include <boost/range/metafunctions.hpp> |
| |
| #include <boost/geometry/core/ring_type.hpp> |
| #include <boost/geometry/multi/core/tags.hpp> |
| |
| |
| namespace boost { namespace geometry |
| { |
| |
| |
| #ifndef DOXYGEN_NO_DISPATCH |
| namespace core_dispatch |
| { |
| |
| template <typename MultiPolygon> |
| struct ring_return_type<multi_polygon_tag, MultiPolygon> |
| { |
| typedef typename ring_return_type |
| < |
| polygon_tag, |
| typename mpl::if_ |
| < |
| boost::is_const<MultiPolygon>, |
| typename boost::range_value<MultiPolygon>::type const, |
| typename boost::range_value<MultiPolygon>::type |
| >::type |
| >::type type; |
| }; |
| |
| |
| template <typename MultiPolygon> |
| struct ring_type<multi_polygon_tag, MultiPolygon> |
| { |
| typedef typename boost::remove_reference |
| < |
| typename ring_return_type<multi_polygon_tag, MultiPolygon>::type |
| >::type type; |
| }; |
| |
| |
| } // namespace core_dispatch |
| #endif |
| |
| |
| }} // namespace boost::geometry |
| |
| |
| #endif // BOOST_GEOMETRY_MULTI_CORE_RING_TYPE_HPP |