+// Copyright (C) 2006 Arkadiy Vertleyb
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_TYPEOF_NATIVE_HPP_INCLUDED
+#define BOOST_TYPEOF_NATIVE_HPP_INCLUDED
+
+#ifndef MSVC_TYPEOF_HACK
+
+#ifdef BOOST_NO_SFINAE
+
+namespace boost { namespace type_of {
+
+ template<class T>
+ T& ensure_obj(const T&);
+
+}}
+
+#else
+
+#include <boost/type_traits/is_function.hpp>
+#include <boost/utility/enable_if.hpp>
+
+namespace boost { namespace type_of {
+# ifdef BOOST_NO_SFINAE
+ template<class T>
+ T& ensure_obj(const T&);
+# else
+ template<typename T>
+ typename enable_if<is_function<T>, T&>::type
+ ensure_obj(T&);
+
+ template<typename T>
+ typename disable_if<is_function<T>, T&>::type
+ ensure_obj(const T&);
+# endif
+}}
+
+#endif//BOOST_NO_SFINAE
+
+#define BOOST_TYPEOF(expr) BOOST_TYPEOF_KEYWORD(boost::type_of::ensure_obj(expr))
+#define BOOST_TYPEOF_TPL BOOST_TYPEOF
+
+#define BOOST_TYPEOF_NESTED_TYPEDEF_TPL(name,expr) \
+ struct name {\
+ typedef BOOST_TYPEOF_TPL(expr) type;\
+ };
+
+#define BOOST_TYPEOF_NESTED_TYPEDEF(name,expr) \
+ struct name {\
+ typedef BOOST_TYPEOF(expr) type;\
+ };
+
+#endif//MSVC_TYPEOF_HACK
+
+#define BOOST_TYPEOF_REGISTER_TYPE(x)
+#define BOOST_TYPEOF_REGISTER_TEMPLATE(x, params)
+
+#endif//BOOST_TYPEOF_NATIVE_HPP_INCLUDED
+