| # /* ************************************************************************** |
| # * * |
| # * (C) Copyright Edward Diener 2013. |
| # * 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_TUPLE_POP_FRONT_HPP |
| # define BOOST_PREPROCESSOR_TUPLE_POP_FRONT_HPP |
| # |
| # include <boost/preprocessor/config/config.hpp> |
| # |
| # if BOOST_PP_VARIADICS |
| # |
| # include <boost/preprocessor/array/pop_front.hpp> |
| # include <boost/preprocessor/array/to_tuple.hpp> |
| # include <boost/preprocessor/comparison/greater.hpp> |
| # include <boost/preprocessor/control/iif.hpp> |
| # include <boost/preprocessor/tuple/size.hpp> |
| # include <boost/preprocessor/tuple/to_array.hpp> |
| # |
| # |
| # /* BOOST_PP_TUPLE_POP_FRONT */ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT(tuple) \ |
| BOOST_PP_IIF \ |
| ( \ |
| BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \ |
| BOOST_PP_TUPLE_POP_FRONT_EXEC, \ |
| BOOST_PP_TUPLE_POP_FRONT_RETURN \ |
| ) \ |
| (tuple) \ |
| /**/ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT_EXEC(tuple) \ |
| BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_POP_FRONT(BOOST_PP_TUPLE_TO_ARRAY(tuple))) \ |
| /**/ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT_RETURN(tuple) tuple |
| # |
| # /* BOOST_PP_TUPLE_POP_FRONT_Z */ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT_Z(z, tuple) \ |
| BOOST_PP_IIF \ |
| ( \ |
| BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \ |
| BOOST_PP_TUPLE_POP_FRONT_Z_EXEC, \ |
| BOOST_PP_TUPLE_POP_FRONT_Z_RETURN \ |
| ) \ |
| (z, tuple) \ |
| /**/ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT_Z_EXEC(z, tuple) \ |
| BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_POP_FRONT_Z(z, BOOST_PP_TUPLE_TO_ARRAY(tuple))) \ |
| /**/ |
| # |
| # define BOOST_PP_TUPLE_POP_FRONT_Z_RETURN(z, tuple) tuple |
| # |
| # endif // BOOST_PP_VARIADICS |
| # |
| # endif // BOOST_PREPROCESSOR_TUPLE_POP_FRONT_HPP |