| 1 | # /* ************************************************************************** |
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| 2 | # * * |
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| 3 | # * (C) Copyright Edward Diener 2013. |
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| 4 | # * Distributed under the Boost Software License, Version 1.0. (See |
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| 5 | # * accompanying file LICENSE_1_0.txt or copy at |
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| 6 | # * http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | # * * |
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| 8 | # ************************************************************************** */ |
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| 9 | # |
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| 10 | # /* See http://www.boost.org for most recent version. */ |
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| 11 | # |
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| 12 | # ifndef BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP |
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| 13 | # define BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP |
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| 14 | # |
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| 15 | # include <boost/preprocessor/config/config.hpp> |
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| 16 | # |
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| 17 | # if BOOST_PP_VARIADICS |
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| 18 | # |
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| 19 | # include <boost/preprocessor/array/remove.hpp> |
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| 20 | # include <boost/preprocessor/array/to_tuple.hpp> |
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| 21 | # include <boost/preprocessor/comparison/greater.hpp> |
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| 22 | # include <boost/preprocessor/control/iif.hpp> |
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| 23 | # include <boost/preprocessor/tuple/size.hpp> |
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| 24 | # include <boost/preprocessor/tuple/to_array.hpp> |
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| 25 | # |
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| 26 | # /* BOOST_PP_TUPLE_REMOVE */ |
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| 27 | # |
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| 28 | # define BOOST_PP_TUPLE_REMOVE(tuple, i) \ |
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| 29 | BOOST_PP_IIF \ |
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| 30 | ( \ |
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| 31 | BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \ |
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| 32 | BOOST_PP_TUPLE_REMOVE_EXEC, \ |
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| 33 | BOOST_PP_TUPLE_REMOVE_RETURN \ |
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| 34 | ) \ |
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| 35 | (tuple, i) \ |
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| 36 | /**/ |
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| 37 | # |
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| 38 | # define BOOST_PP_TUPLE_REMOVE_EXEC(tuple, i) \ |
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| 39 | BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE(BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ |
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| 40 | /**/ |
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| 41 | # |
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| 42 | # define BOOST_PP_TUPLE_REMOVE_RETURN(tuple, i) tuple |
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| 43 | # |
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| 44 | # /* BOOST_PP_TUPLE_REMOVE_D */ |
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| 45 | # |
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| 46 | # define BOOST_PP_TUPLE_REMOVE_D(d, tuple, i) \ |
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| 47 | BOOST_PP_IIF \ |
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| 48 | ( \ |
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| 49 | BOOST_PP_GREATER_D(d, BOOST_PP_TUPLE_SIZE(tuple), 1), \ |
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| 50 | BOOST_PP_TUPLE_REMOVE_D_EXEC, \ |
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| 51 | BOOST_PP_TUPLE_REMOVE_D_RETURN \ |
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| 52 | ) \ |
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| 53 | (d, tuple, i) \ |
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| 54 | /**/ |
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| 55 | # |
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| 56 | # define BOOST_PP_TUPLE_REMOVE_D_EXEC(d, tuple, i) \ |
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| 57 | BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE_D(d, BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ |
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| 58 | /**/ |
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| 59 | # |
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| 60 | # define BOOST_PP_TUPLE_REMOVE_D_RETURN(d, tuple, i) tuple |
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| 61 | # |
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| 62 | # endif // BOOST_PP_VARIADICS |
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| 63 | # |
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| 64 | # endif // BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP |
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| 65 | |
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