+// Copyright 2010 John Maddock
+
+// Distributed under the Boost Software License, Version 1.0.
+// See http://www.boost.org/LICENSE_1_0.txt
+
+#ifndef BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP
+#define BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP
+
+#include <boost/type_traits/add_reference.hpp>
+
+// should be the last #include
+#include <boost/type_traits/detail/type_trait_def.hpp>
+
+namespace boost{
+
+BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_lvalue_reference,T,typename boost::add_reference<T>::type)
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_lvalue_reference,T&&,T&)
+#endif
+
+}
+
+#include <boost/type_traits/detail/type_trait_undef.hpp>
+
+#endif // BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP