1 # /* **************************************************************************
3 # * (C) Copyright Edward Diener 2019.
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)
8 # ************************************************************************** */
10 # /* See http://www.boost.org for most recent version. */
12 # ifndef BOOST_PREPROCESSOR_FACILITIES_CHECK_EMPTY_HPP
13 # define BOOST_PREPROCESSOR_FACILITIES_CHECK_EMPTY_HPP
14 # include <boost/preprocessor/variadic/has_opt.hpp>
15 # if BOOST_PP_VARIADIC_HAS_OPT()
16 # include <boost/preprocessor/facilities/is_empty_variadic.hpp>
17 # define BOOST_PP_CHECK_EMPTY(...) BOOST_PP_IS_EMPTY_OPT(__VA_ARGS__)
18 # endif /* BOOST_PP_VARIADIC_HAS_OPT() */
19 # endif /* BOOST_PREPROCESSOR_FACILITIES_CHECK_EMPTY_HPP */