| # /* ************************************************************************** |
| # * * |
| # * (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 |