--- /dev/null
+/*=============================================================================
+ 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_VIEW_JOINT_VIEW_DETAIL_DEREF_DATA_IMPL_HPP
+#define BOOST_FUSION_VIEW_JOINT_VIEW_DETAIL_DEREF_DATA_IMPL_HPP
+
+#include <boost/fusion/iterator/deref_data.hpp>
+
+namespace boost { namespace fusion { namespace extension
+{
+ template <typename>
+ struct deref_data_impl;
+
+ template <>
+ struct deref_data_impl<joint_view_iterator_tag>
+ {
+ template <typename It>
+ struct apply
+ {
+ typedef typename
+ result_of::deref_data<typename It::first_type>::type
+ type;
+
+ static type
+ call(It const& it)
+ {
+ return fusion::deref_data(it.first);
+ }
+ };
+ };
+}}}
+
+#endif