1 # /* ************************************************************************** 2 # * * 3 # * (C) Copyright Paul Mensonides 2002. 4 # * Distributed under the Boost Software License, Version 1.0. (See 5 # * accompanying file LICENSE_1_0.txt or copy at 6 # * http://www.boost.org/LICENSE_1_0.txt) 7 # * * 8 # ************************************************************************** */ 9 # 10 # /* See http://www.boost.org for most recent version. */ 11 # 12 # ifndef BOOST_PREPROCESSOR_PUNCTUATION_PAREN_IF_HPP 13 # define BOOST_PREPROCESSOR_PUNCTUATION_PAREN_IF_HPP 14 # 15 # include <boost/preprocessor/config/config.hpp> 16 # include <boost/preprocessor/control/if.hpp> 17 # include <boost/preprocessor/facilities/empty.hpp> 18 # include <boost/preprocessor/punctuation/paren.hpp> 19 # 20 # /* BOOST_PP_LPAREN_IF */ 21 # 22 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 23 # define BOOST_PP_LPAREN_IF(cond) BOOST_PP_IF(cond, BOOST_PP_LPAREN, BOOST_PP_EMPTY)() 24 # else 25 # define BOOST_PP_LPAREN_IF(cond) BOOST_PP_LPAREN_IF_I(cond) 26 # define BOOST_PP_LPAREN_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_LPAREN, BOOST_PP_EMPTY)() 27 # endif 28 # 29 # /* BOOST_PP_RPAREN_IF */ 30 # 31 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 32 # define BOOST_PP_RPAREN_IF(cond) BOOST_PP_IF(cond, BOOST_PP_RPAREN, BOOST_PP_EMPTY)() 33 # else 34 # define BOOST_PP_RPAREN_IF(cond) BOOST_PP_RPAREN_IF_I(cond) 35 # define BOOST_PP_RPAREN_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_RPAREN, BOOST_PP_EMPTY)() 36 # endif 37 # 38 # endif 39