preprocessor/facilities/expand.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 # /* Revised by Paul Mensonides (2002) */
0011 #
0012 # /* See http://www.boost.org for most recent version. */
0013 #
0014 # ifndef BOOST_PREPROCESSOR_FACILITIES_EXPAND_HPP
0015 # define BOOST_PREPROCESSOR_FACILITIES_EXPAND_HPP
0016 #
0017 # include <boost/preprocessor/config/config.hpp>
0018 #
0019 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
0020 #    define BOOST_PP_EXPAND(x) BOOST_PP_EXPAND_I(x)
0021 # else
0022 #    define BOOST_PP_EXPAND(x) BOOST_PP_EXPAND_OO((x))
0023 #    define BOOST_PP_EXPAND_OO(par) BOOST_PP_EXPAND_I ## par
0024 # endif
0025 #
0026 # define BOOST_PP_EXPAND_I(x) x
0027 #
0028 # endif