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diff --git a/boost/fusion/container/map/detail/cpp03/value_of_data_impl.hpp b/boost/fusion/container/map/detail/cpp03/value_of_data_impl.hpp
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+/*=============================================================================
+ Copyright (c) 2009 Christopher Schmidt
+
+ 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)
+==============================================================================*/
+
+#ifndef BOOST_FUSION_CONTAINER_MAP_DETAIL_VALUE_OF_DATA_IMPL_HPP
+#define BOOST_FUSION_CONTAINER_MAP_DETAIL_VALUE_OF_DATA_IMPL_HPP
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/container/map/detail/cpp03/value_of_impl.hpp>
+
+namespace boost { namespace fusion { namespace extension
+{
+ template <typename>
+ struct value_of_data_impl;
+
+ template <>
+ struct value_of_data_impl<map_iterator_tag>
+ {
+ template <typename It>
+ struct apply
+ {
+ typedef typename
+ value_of_impl<map_iterator_tag>::
+ template apply<It>::type::second_type
+ type;
+ };
+ };
+}}}
+
+#endif