1 
2 //  (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes,
3 //      Howard Hinnant and John Maddock 2000, 2010.
4 //  (C) Copyright Mat Marcus, Jesse Jones and Adobe Systems Inc 2001
5 
6 //  Use, modification and distribution are subject to the Boost Software License,
7 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
8 //  http://www.boost.org/LICENSE_1_0.txt).
9 //
10 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
11 
12 #ifndef BOOST_TT_IS_REFERENCE_HPP_INCLUDED
13 #define BOOST_TT_IS_REFERENCE_HPP_INCLUDED
14 
15 #include <boost/type_traits/is_lvalue_reference.hpp>
16 #include <boost/type_traits/is_rvalue_reference.hpp>
17 
18 namespace boost {
19 
20 template <class T> struct is_reference
21    : public
22    integral_constant<
23       bool,
24       ::boost::is_lvalue_reference<T>::value || ::boost::is_rvalue_reference<T>::value>
25 {};
26 
27 } // namespace boost
28 
29 #endif // BOOST_TT_IS_REFERENCE_HPP_INCLUDED
30 
31