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    Copyright (c) 2001-2011 Joel de Guzman

    Distributed under the Boost Software License, Version 1.0. (See accompanying 
    file LICENSE_1_0.txt or copy at
#if !defined(FUSION_EQUAL_TO_IMPL_09172005_1120)
#define FUSION_EQUAL_TO_IMPL_09172005_1120

#include <boost/fusion/support/config.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/and.hpp>

namespace boost { namespace fusion
    struct cons_iterator_tag;

    namespace extension
        template <typename Tag>
        struct equal_to_impl;

        template <>
        struct equal_to_impl<cons_iterator_tag>
            template <typename I1, typename I2>
            struct apply
                : is_same<
                    typename I1::identity
                  , typename I2::identity