// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2009-2012 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_STD_PAIR_AS_SEGMENT_HPP
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#define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_STD_PAIR_AS_SEGMENT_HPP
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// Only possible if the std::pair is not used for iterator/pair
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// (maybe it is possible to avoid that by detecting in the other file
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// if an iterator was used in the pair)
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#ifdef BOOST_GEOMETRY_ADAPTED_STD_RANGE_TAG_DEFINED
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#error Include only one headerfile to register tag for adapted std:: containers or iterator pair
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#endif
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#define BOOST_GEOMETRY_ADAPTED_STD_RANGE_TAG_DEFINED
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#include <cstddef>
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#include <boost/geometry/core/access.hpp>
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#include <boost/geometry/core/tag.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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template <typename Point>
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struct tag<std::pair<Point, Point> >
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{
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typedef segment_tag type;
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};
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template <typename Point>
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struct point_type<std::pair<Point, Point> >
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{
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typedef Point type;
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};
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template <typename Point, std::size_t Dimension>
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struct indexed_access<std::pair<Point, Point>, 0, Dimension>
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{
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typedef typename geometry::coordinate_type<Point>::type coordinate_type;
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static inline coordinate_type get(std::pair<Point, Point> const& s)
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{
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return geometry::get<Dimension>(s.first);
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}
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static inline void set(std::pair<Point, Point>& s, coordinate_type const& value)
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{
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geometry::set<Dimension>(s.first, value);
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}
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};
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template <typename Point, std::size_t Dimension>
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struct indexed_access<std::pair<Point, Point>, 1, Dimension>
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{
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typedef typename geometry::coordinate_type<Point>::type coordinate_type;
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static inline coordinate_type get(std::pair<Point, Point> const& s)
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{
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return geometry::get<Dimension>(s.second);
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}
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static inline void set(std::pair<Point, Point>& s, coordinate_type const& value)
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{
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geometry::set<Dimension>(s.second, 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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#endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_STD_PAIR_AS_SEGMENT_HPP
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