// Boost.Geometry
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// Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland.
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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_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP
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#include <boost/range/iterator.hpp>
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#include <boost/range/value_type.hpp>
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#include <boost/geometry/core/interior_type.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail
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{
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/*!
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\brief Structure defining the type of interior rings iterator
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\note If the Geometry is const, const iterator is defined.
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\tparam Geometry \tparam_geometry
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*/
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template <typename Geometry>
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struct interior_iterator
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{
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typedef typename boost::range_iterator
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<
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typename geometry::interior_type<Geometry>::type
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>::type type;
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};
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template <typename BaseT, typename T>
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struct copy_const
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{
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typedef T type;
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};
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template <typename BaseT, typename T>
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struct copy_const<BaseT const, T>
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{
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typedef T const type;
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};
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template <typename Geometry>
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struct interior_ring_iterator
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{
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typedef typename boost::range_iterator
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<
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typename copy_const
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<
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typename geometry::interior_type<Geometry>::type,
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typename boost::range_value
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<
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typename geometry::interior_type<Geometry>::type
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>::type
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>::type
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>::type type;
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_INTERIOR_ITERATOR_HPP
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