--- /dev/null
+// Boost.Bimap
+//
+// Copyright (c) 2006-2007 Matias Capeletto
+//
+// 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)
+
+/// \file support/map_type_by.hpp
+/// \brief Metafunction to access the map view types of a bimap
+
+#ifndef BOOST_BIMAP_SUPPORT_MAP_TYPE_BY_HPP
+#define BOOST_BIMAP_SUPPORT_MAP_TYPE_BY_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/config.hpp>
+
+#include <boost/bimap/relation/detail/metadata_access_builder.hpp>
+
+/** \struct boost::bimaps::support::map_type_by
+
+\brief Metafunction to obtain the map view type of a bimap indexed by one of the sides.
+
+The tag parameter can be either a user defined tag or \c member_at::{side}.
+The returned type is signature-compatible with std::pair.
+
+\code
+
+template< class Tag, class Bimap >
+struct map_type_by
+{
+ typedef typename Bimap::{side}_map_type type;
+};
+
+\endcode
+
+See also member_at.
+\ingroup bimap_group
+ **/
+
+namespace boost {
+namespace bimaps {
+namespace support {
+
+// Implementation of map type by metafunction
+
+BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER
+(
+ map_type_by,
+ left_map,
+ right_map
+)
+
+
+
+} // namespace support
+} // namespace bimaps
+} // namespace boost
+
+
+#endif // BOOST_BIMAP_SUPPORT_MAP_TYPE_BY_HPP
+