preprocessor/facilities/identity.hpp

0001 # /* Copyright (C) 2001
0002 #  * Housemarque Oy
0003 #  * http://www.housemarque.com
0004 #  *
0005 #  * Distributed under the Boost Software License, Version 1.0. (See
0006 #  * accompanying file LICENSE_1_0.txt or copy at
0007 #  * http://www.boost.org/LICENSE_1_0.txt)
0008 #  */
0009 0010 ">#
0011 # /* Revised by Paul Mensonides (2002) */
0012 # /* Revised by Edward Diener (2015) */
0013 0014 ">#
0015 # /* See http://www.boost.org for most recent version. */
0016 0017 ">#
0018 # ifndef BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
0019 # define BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
0020 0021 ">#
0022 # include <boost/preprocessor/facilities/empty.hpp>
0023 # include <boost/preprocessor/tuple/eat.hpp>
0024 0025 ">#
0026 # /* BOOST_PP_IDENTITY */
0027 0028 ">#
0029 # define BOOST_PP_IDENTITY(item) item BOOST_PP_EMPTY
0030 0031 ">#
0032 # define BOOST_PP_IDENTITY_N(item,n) item BOOST_PP_TUPLE_EAT_N(n)
0033 0034 ">#
0035 # endif