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    Copyright (c) 2001-2011 Joel de Guzman
    Copyright (c) 2005 Eric Niebler

    Distributed under the Boost Software License, Version 1.0. (See accompanying 
    file LICENSE_1_0.txt or copy at
#if !defined(FUSION_VALUE_OF_IMPL_07172005_0838)
#define FUSION_VALUE_OF_IMPL_07172005_0838

namespace boost { namespace fusion
    struct cons_iterator_tag;

    namespace extension
        template <typename Tag>
        struct value_of_impl;

        template <>
        struct value_of_impl<cons_iterator_tag>
            template <typename Iterator>
            struct apply 
                typedef typename Iterator::cons_type cons_type;
                typedef typename cons_type::car_type type;