next_traits.hpp

CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most i

/*=============================================================================
    Copyright (c) 2003 Joel de Guzman

    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)
==============================================================================*/
#if !defined(FUSION_ITERATOR_DETAIL_TYPE_SEQUENCE_ITERATOR_NEXT_TRAITS_HPP)
#define FUSION_ITERATOR_DETAIL_TYPE_SEQUENCE_ITERATOR_NEXT_TRAITS_HPP

#include <boost/spirit/fusion/detail/config.hpp>
#include <boost/mpl/next.hpp>

namespace boost { namespace fusion
{
    struct type_sequence_iterator_tag;

    template <typename Iterator>
    struct type_sequence_iterator;

    namespace meta
    {
        template <typename Tag>
        struct next_impl;

        template <>
        struct next_impl<type_sequence_iterator_tag>
        {
            template <typename Iterator>
            struct apply
            {
                typedef type_sequence_iterator<
                    typename mpl::next<typename Iterator::iterator_type>::type
                > type;

                static type
                call(Iterator)
                {
                    FUSION_RETURN_DEFAULT_CONSTRUCTED;
                };
            };
        };
    }
}}

#endif