/usr/include/boost/preprocessor/facilities
Edit: /usr/include/boost/preprocessor/facilities/check_empty.hpp (1031B)
# /* **************************************************************************
# * *
# * (C) Copyright Edward Diener 2019.
# * 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_CHECK_EMPTY_HPP
# define BOOST_PREPROCESSOR_FACILITIES_CHECK_EMPTY_HPP
# include
# if BOOST_PP_VARIADIC_HAS_OPT()
# include
# define BOOST_PP_CHECK_EMPTY(...) BOOST_PP_IS_EMPTY_OPT(__VA_ARGS__)
# endif /* BOOST_PP_VARIADIC_HAS_OPT() */
# endif /* BOOST_PREPROCESSOR_FACILITIES_CHECK_EMPTY_HPP */