/*=============================================================================
    Copyright (c) 2011 Eric Niebler

    Distributed under 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)
==============================================================================*/
#if !defined(BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED)
#define BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED

#include <boost/fusion/support/config.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/fusion/sequence/intrinsic/segments.hpp>
#include <boost/fusion/support/is_segmented.hpp>
#include <boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp>

namespace boost {
namespace fusion {
struct iterator_range_tag;

namespace extension {
template <typename Tag>
struct segments_impl;

template <>
struct segments_impl<iterator_range_tag>
{
    template <typename Sequence>
    struct apply
    {
        typedef
        detail::make_segmented_range<
        typename Sequence::begin_type
        , typename Sequence::end_type
        >
        impl;

        BOOST_MPL_ASSERT((traits::is_segmented<typename impl::type>));

        typedef
        typename result_of::segments<typename impl::type>::type
        type;

        BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
        static type
        call(Sequence & seq)
        {
            return fusion::segments(impl::call(seq.first, seq.last));
        }
    };
};
}
}
}

#endif
