1# /* **************************************************************************
2# * *
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) *
7# * *
8# ************************************************************************** */
9#
10# /* See http://www.boost.org for most recent version. */
11#
12# ifndef BOOST_PREPROCESSOR_TUPLE_DETAIL_IS_SINGLE_RETURN_HPP
13# define BOOST_PREPROCESSOR_TUPLE_DETAIL_IS_SINGLE_RETURN_HPP
14#
15# include <boost/preprocessor/config/config.hpp>
16#
17# /* BOOST_PP_TUPLE_IS_SINGLE_RETURN */
18#
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/tuple/size.hpp>
23# define BOOST_PP_TUPLE_IS_SINGLE_RETURN(sr,nsr,tuple) \
24 BOOST_PP_IIF(BOOST_PP_IS_1(BOOST_PP_TUPLE_SIZE(tuple)),sr,nsr) \
25 /**/
26# endif /* BOOST_PP_VARIADICS && BOOST_PP_VARIADICS_MSVC */
27#
28# endif /* BOOST_PREPROCESSOR_TUPLE_DETAIL_IS_SINGLE_RETURN_HPP */
29