preprocessor/punctuation/paren_if.hpp

0001 # /* **************************************************************************
0002 #  *                                                                          *
0003 #  *     (C) Copyright Paul Mensonides 2002.
0004 #  *     Distributed under the Boost Software License, Version 1.0. (See
0005 #  *     accompanying file LICENSE_1_0.txt or copy at
0006 #  *     http://www.boost.org/LICENSE_1_0.txt)
0007 #  *                                                                          *
0008 #  ************************************************************************** */
0009 0010 ">#
0011 # /* See http://www.boost.org for most recent version. */
0012 0013 ">#
0014 # ifndef BOOST_PREPROCESSOR_PUNCTUATION_PAREN_IF_HPP
0015 # define BOOST_PREPROCESSOR_PUNCTUATION_PAREN_IF_HPP
0016 0017 ">#
0018 # include <boost/preprocessor/config/config.hpp>
0019 # include <boost/preprocessor/control/if.hpp>
0020 # include <boost/preprocessor/facilities/empty.hpp>
0021 # include <boost/preprocessor/punctuation/paren.hpp>
0022 0023 ">#
0024 # /* BOOST_PP_LPAREN_IF */
0025 0026 ">#
0027 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0028 #    define BOOST_PP_LPAREN_IF(cond) BOOST_PP_IF(cond, BOOST_PP_LPAREN, BOOST_PP_EMPTY)()
0029 # else
0030 #    define BOOST_PP_LPAREN_IF(cond) BOOST_PP_LPAREN_IF_I(cond)
0031 #    define BOOST_PP_LPAREN_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_LPAREN, BOOST_PP_EMPTY)()
0032 # endif
0033 0034 ">#
0035 # /* BOOST_PP_RPAREN_IF */
0036 0037 ">#
0038 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0039 #    define BOOST_PP_RPAREN_IF(cond) BOOST_PP_IF(cond, BOOST_PP_RPAREN, BOOST_PP_EMPTY)()
0040 # else
0041 #    define BOOST_PP_RPAREN_IF(cond) BOOST_PP_RPAREN_IF_I(cond)
0042 #    define BOOST_PP_RPAREN_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_RPAREN, BOOST_PP_EMPTY)()
0043 # endif
0044 0045 ">#
0046 # endif