1 # /* **************************************************************************
3 # * (C) Copyright Edward Diener 2013.
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_TUPLE_REMOVE_HPP
13 # define BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP
15 # include <boost/preprocessor/config/config.hpp>
17 # if BOOST_PP_VARIADICS
19 # include <boost/preprocessor/array/remove.hpp>
20 # include <boost/preprocessor/array/to_tuple.hpp>
21 # include <boost/preprocessor/comparison/greater.hpp>
22 # include <boost/preprocessor/control/iif.hpp>
23 # include <boost/preprocessor/tuple/size.hpp>
24 # include <boost/preprocessor/tuple/to_array.hpp>
26 # /* BOOST_PP_TUPLE_REMOVE */
28 # define BOOST_PP_TUPLE_REMOVE(tuple, i) \
31 BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \
32 BOOST_PP_TUPLE_REMOVE_EXEC, \
33 BOOST_PP_TUPLE_REMOVE_RETURN \
38 # define BOOST_PP_TUPLE_REMOVE_EXEC(tuple, i) \
39 BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE(BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \
42 # define BOOST_PP_TUPLE_REMOVE_RETURN(tuple, i) tuple
44 # /* BOOST_PP_TUPLE_REMOVE_D */
46 # define BOOST_PP_TUPLE_REMOVE_D(d, tuple, i) \
49 BOOST_PP_GREATER_D(d, BOOST_PP_TUPLE_SIZE(tuple), 1), \
50 BOOST_PP_TUPLE_REMOVE_D_EXEC, \
51 BOOST_PP_TUPLE_REMOVE_D_RETURN \
56 # define BOOST_PP_TUPLE_REMOVE_D_EXEC(d, tuple, i) \
57 BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE_D(d, BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \
60 # define BOOST_PP_TUPLE_REMOVE_D_RETURN(d, tuple, i) tuple
62 # endif // BOOST_PP_VARIADICS
64 # endif // BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP