boost/preprocessor/detail/is_nullary.hpp
# /* ************************************************************************** # * * # * (C) Copyright Paul Mensonides 2002. # * 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_DETAIL_IS_NULLARY_HPP # define BOOST_PREPROCESSOR_DETAIL_IS_NULLARY_HPP # # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/detail/check.hpp> # # /* BOOST_PP_IS_NULLARY */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_IS_NULLARY(x) BOOST_PP_CHECK(x, BOOST_PP_IS_NULLARY_CHECK) # else # define BOOST_PP_IS_NULLARY(x) BOOST_PP_IS_NULLARY_I(x) # define BOOST_PP_IS_NULLARY_I(x) BOOST_PP_CHECK(x, BOOST_PP_IS_NULLARY_CHECK) # endif # # define BOOST_PP_IS_NULLARY_CHECK() 1 # define BOOST_PP_CHECK_RESULT_BOOST_PP_IS_NULLARY_CHECK 0, BOOST_PP_NIL # # endif