boost/preprocessor/tuple/remove.hpp
# /* ************************************************************************** # * * # * (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_REMOVE_HPP # define BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP # # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/array/remove.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_REMOVE */ # # define BOOST_PP_TUPLE_REMOVE(tuple, i) \ BOOST_PP_IIF \ ( \ BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \ BOOST_PP_TUPLE_REMOVE_EXEC, \ BOOST_PP_TUPLE_REMOVE_RETURN \ ) \ (tuple, i) \ /**/ # # define BOOST_PP_TUPLE_REMOVE_EXEC(tuple, i) \ BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE(BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ /**/ # # define BOOST_PP_TUPLE_REMOVE_RETURN(tuple, i) tuple # # /* BOOST_PP_TUPLE_REMOVE_D */ # # define BOOST_PP_TUPLE_REMOVE_D(d, tuple, i) \ BOOST_PP_IIF \ ( \ BOOST_PP_GREATER_D(d, BOOST_PP_TUPLE_SIZE(tuple), 1), \ BOOST_PP_TUPLE_REMOVE_D_EXEC, \ BOOST_PP_TUPLE_REMOVE_D_RETURN \ ) \ (d, tuple, i) \ /**/ # # define BOOST_PP_TUPLE_REMOVE_D_EXEC(d, tuple, i) \ BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE_D(d, BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ /**/ # # define BOOST_PP_TUPLE_REMOVE_D_RETURN(d, tuple, i) tuple # # endif // BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP