| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| |
| // Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
| // Copyright (c) 2008-2011 Barend Gehrels, Amsterdam, the Netherlands. |
| // 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_GEOMETRIES_ADAPTED_STD_PAIR_AS_SEGMENT_HPP |
| #define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_STD_PAIR_AS_SEGMENT_HPP |
| |
| // Only possible if the std::pair is not used for iterator/pair |
| // (maybe it is possible to avoid that by detecting in the other file |
| // if an iterator was used in the pair) |
| |
| #ifdef BOOST_GEOMETRY_ADAPTED_STD_RANGE_TAG_DEFINED |
| #error Include only one headerfile to register tag for adapted std:: containers or iterator pair |
| #endif |
| |
| #define BOOST_GEOMETRY_ADAPTED_STD_RANGE_TAG_DEFINED |
| |
| |
| #include <cstddef> |
| |
| |
| #include <boost/geometry/core/access.hpp> |
| #include <boost/geometry/core/tag.hpp> |
| #include <boost/geometry/core/tags.hpp> |
| |
| |
| namespace boost { namespace geometry |
| { |
| |
| |
| #ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
| namespace traits |
| { |
| |
| |
| template <typename Point> |
| struct tag<std::pair<Point, Point> > |
| { |
| typedef segment_tag type; |
| }; |
| |
| template <typename Point> |
| struct point_type<std::pair<Point, Point> > |
| { |
| typedef Point type; |
| }; |
| |
| template <typename Point, std::size_t Dimension> |
| struct indexed_access<std::pair<Point, Point>, 0, Dimension> |
| { |
| typedef typename geometry::coordinate_type<Point>::type coordinate_type; |
| |
| static inline coordinate_type get(std::pair<Point, Point> const& s) |
| { |
| return geometry::get<Dimension>(s.first); |
| } |
| |
| static inline void set(std::pair<Point, Point>& s, coordinate_type const& value) |
| { |
| geometry::set<Dimension>(s.first, value); |
| } |
| }; |
| |
| |
| template <typename Point, std::size_t Dimension> |
| struct indexed_access<std::pair<Point, Point>, 1, Dimension> |
| { |
| typedef typename geometry::coordinate_type<Point>::type coordinate_type; |
| |
| static inline coordinate_type get(std::pair<Point, Point> const& s) |
| { |
| return geometry::get<Dimension>(s.second); |
| } |
| |
| static inline void set(std::pair<Point, Point>& s, coordinate_type const& value) |
| { |
| geometry::set<Dimension>(s.second, value); |
| } |
| }; |
| |
| |
| } // namespace traits |
| #endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
| |
| |
| }} // namespace boost::geometry |
| |
| |
| #endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_STD_PAIR_AS_SEGMENT_HPP |