1 # /* **************************************************************************
3 # * (C) Copyright Edward Diener 2014. *
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_VARIADIC_DETAIL_IS_SINGLE_RETURN_HPP
13 # define BOOST_PREPROCESSOR_VARIADIC_DETAIL_IS_SINGLE_RETURN_HPP
15 # include <boost/preprocessor/config/config.hpp>
17 # /* BOOST_PP_VARIADIC_IS_SINGLE_RETURN */
19 # if BOOST_PP_VARIADICS && BOOST_PP_VARIADICS_MSVC
20 # include <boost/preprocessor/control/iif.hpp>
21 # include <boost/preprocessor/facilities/is_1.hpp>
22 # include <boost/preprocessor/variadic/size.hpp>
23 # define BOOST_PP_VARIADIC_IS_SINGLE_RETURN(sr,nsr,...) \
24 BOOST_PP_IIF(BOOST_PP_IS_1(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__)),sr,nsr) \
26 # endif /* BOOST_PP_VARIADICS && BOOST_PP_VARIADICS_MSVC */
28 # endif /* BOOST_PREPROCESSOR_VARIADIC_DETAIL_IS_SINGLE_RETURN_HPP */