/*=============================================================================

    Copyright (c) 2001-2006 Joel de Guzman



    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(FUSION_ADVANCE_IMPL_09172005_1156)

#define FUSION_ADVANCE_IMPL_09172005_1156



namespace boost { namespace fusion

{

    struct vector_iterator_tag;



    template <typename Vector, int N>

    struct vector_iterator;



    namespace extension

    {

        template <typename Tag>

        struct advance_impl;

    

        template <>

        struct advance_impl<vector_iterator_tag>

        {

            template <typename Iterator, typename N>

            struct apply

            {

                typedef typename Iterator::index index;

                typedef typename Iterator::vector vector;

                typedef vector_iterator<vector, index::value+N::value> type;

    

                static type

                call(Iterator const& i)

                {

                    return type(i.vec);

                }

            };

        };

    }

}}



#endif

