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