-// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
-// Permission to copy, use, modify, sell and distribute this software is
-// granted provided this copyright notice appears in all copies. This software
-// is provided "as is" without express or implied warranty, and with no claim
-// as to its suitability for any purpose.
+// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
+// Use, modification and distribution are subject to 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 for most recent version including documentation.
+// See http://www.boost.org/libs/type_traits for most recent version including documentation.
#ifndef BOOST_TT_ADD_REFERENCE_HPP_INCLUDED
#define BOOST_TT_ADD_REFERENCE_HPP_INCLUDED
-#include "boost/type_traits/is_reference.hpp"
-#include "boost/detail/workaround.hpp"
-#include "boost/config.hpp"
+#include <boost/type_traits/is_reference.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/config.hpp>
// should be the last #include
-#include "boost/type_traits/detail/type_trait_def.hpp"
+#include <boost/type_traits/detail/type_trait_def.hpp>
namespace boost {
};
#else
+//
+// We can't filter out rvalue_references at the same level as
+// references or we get ambiguities from msvc:
+//
template <typename T>
-struct add_reference_impl
+struct add_reference_rvalue_layer
{
typedef T& type;
};
+#ifndef BOOST_NO_RVALUE_REFERENCES
+template <typename T>
+struct add_reference_rvalue_layer<T&&>
+{
+ typedef T&& type;
+};
+#endif
+
+template <typename T>
+struct add_reference_impl
+{
+ typedef typename add_reference_rvalue_layer<T>::type type;
+};
+
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
BOOST_TT_AUX_TYPE_TRAIT_IMPL_PARTIAL_SPEC1_1(typename T,add_reference,T&,T&)
#endif
} // namespace detail
-BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_reference,T,typename detail::add_reference_impl<T>::type)
+BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_reference,T,typename boost::detail::add_reference_impl<T>::type)
-// agurt, 07/mar/03: workaround Borland's ill-formed sensitivity to an additional
+// agurt, 07/mar/03: workaround Borland's ill-formed sensitivity to an additional
// level of indirection, here
-#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x561))
+#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_reference,T&,T&)
#endif
} // namespace boost
-#include "boost/type_traits/detail/type_trait_undef.hpp"
+#include <boost/type_traits/detail/type_trait_undef.hpp>
#endif // BOOST_TT_ADD_REFERENCE_HPP_INCLUDED