# /* ************************************************************************** | |
# * * | |
# * (C) Copyright Paul Mensonides 2003. | |
# * Distributed under the Boost Software License, Version 1.0. (See | |
# * accompanying file LICENSE_1_0.txt or copy at | |
# * http://www.boost.org/LICENSE_1_0.txt) | |
# * * | |
# ************************************************************************** */ | |
# | |
# /* See http://www.boost.org for most recent version. */ | |
# | |
# ifndef BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_OR_1_HPP | |
# define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_OR_1_HPP | |
# | |
# include <boost/preprocessor/control/iif.hpp> | |
# include <boost/preprocessor/facilities/empty.hpp> | |
# include <boost/preprocessor/facilities/is_1.hpp> | |
# include <boost/preprocessor/facilities/is_empty.hpp> | |
# | |
# /* BOOST_PP_IS_EMPTY_OR_1 */ | |
# | |
# define BOOST_PP_IS_EMPTY_OR_1(x) \ | |
BOOST_PP_IIF( \ | |
BOOST_PP_IS_EMPTY(x BOOST_PP_EMPTY()), \ | |
1 BOOST_PP_EMPTY, \ | |
BOOST_PP_IS_1 \ | |
)(x) \ | |
/**/ | |
# | |
# endif |