--- /dev/null
+/* Copyright 2003-2005 Joaquín M López Muñoz.
+ * 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)
+ *
+ * See http://www.boost.org/libs/multi_index for library home page.
+ */
+
+#ifndef BOOST_MULTI_INDEX_HASHED_INDEX_FWD_HPP
+#define BOOST_MULTI_INDEX_HASHED_INDEX_FWD_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/multi_index/detail/hash_index_args.hpp>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+template<
+ typename KeyFromValue,typename Hash,typename Pred,
+ typename SuperMeta,typename TagList,typename Category
+>
+class hashed_index;
+
+template<
+ typename KeyFromValue,typename Hash,typename Pred,
+ typename SuperMeta,typename TagList,typename Category
+>
+void swap(
+ hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
+ hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& y);
+
+} /* namespace multi_index::detail */
+
+/* hashed_index specifiers */
+
+template<
+ typename Arg1,typename Arg2=mpl::na,
+ typename Arg3=mpl::na,typename Arg4=mpl::na
+>
+struct hashed_unique;
+
+template<
+ typename Arg1,typename Arg2=mpl::na,
+ typename Arg3=mpl::na,typename Arg4=mpl::na
+>
+struct hashed_non_unique;
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif