[857] | 1 | # /* Copyright (C) 2001
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| 2 | # * Housemarque Oy
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| 3 | # * http://www.housemarque.com
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| 4 | # *
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| 5 | # * Distributed under the Boost Software License, Version 1.0. (See
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| 6 | # * accompanying file LICENSE_1_0.txt or copy at
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| 7 | # * http://www.boost.org/LICENSE_1_0.txt)
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| 8 | # */
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| 9 | #
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| 10 | # /* Revised by Paul Mensonides (2002) */
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| 11 | #
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| 12 | # /* See http://www.boost.org for most recent version. */
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| 13 | #
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| 14 | # ifndef BOOST_PREPROCESSOR_LIST_SIZE_HPP
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| 15 | # define BOOST_PREPROCESSOR_LIST_SIZE_HPP
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| 16 | #
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| 17 | # include <boost/preprocessor/arithmetic/inc.hpp>
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| 18 | # include <boost/preprocessor/config/config.hpp>
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| 19 | # include <boost/preprocessor/control/while.hpp>
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| 20 | # include <boost/preprocessor/list/adt.hpp>
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| 21 | # include <boost/preprocessor/tuple/elem.hpp>
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| 22 | # include <boost/preprocessor/tuple/rem.hpp>
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| 23 | #
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| 24 | # /* BOOST_PP_LIST_SIZE */
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| 25 | #
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| 26 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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| 27 | # define BOOST_PP_LIST_SIZE(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
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| 28 | # else
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| 29 | # define BOOST_PP_LIST_SIZE(list) BOOST_PP_LIST_SIZE_I(list)
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| 30 | # define BOOST_PP_LIST_SIZE_I(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
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| 31 | # endif
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| 32 | #
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| 33 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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| 34 | # define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_IS_CONS(BOOST_PP_TUPLE_ELEM(2, 1, rl))
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| 35 | # else
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| 36 | # define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_SIZE_P_I(BOOST_PP_TUPLE_REM_2 rl)
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| 37 | # define BOOST_PP_LIST_SIZE_P_I(im) BOOST_PP_LIST_SIZE_P_II(im)
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| 38 | # define BOOST_PP_LIST_SIZE_P_II(r, l) BOOST_PP_LIST_IS_CONS(l)
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| 39 | # endif
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| 40 | #
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| 41 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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| 42 | # define BOOST_PP_LIST_SIZE_O(d, rl) (BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(2, 0, rl)), BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(2, 1, rl)))
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| 43 | # else
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| 44 | # define BOOST_PP_LIST_SIZE_O(d, rl) BOOST_PP_LIST_SIZE_O_I(BOOST_PP_TUPLE_REM_2 rl)
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| 45 | # define BOOST_PP_LIST_SIZE_O_I(im) BOOST_PP_LIST_SIZE_O_II(im)
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| 46 | # define BOOST_PP_LIST_SIZE_O_II(r, l) (BOOST_PP_INC(r), BOOST_PP_LIST_REST(l))
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| 47 | # endif
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| 48 | #
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| 49 | # /* BOOST_PP_LIST_SIZE_D */
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| 50 | #
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| 51 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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| 52 | # define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
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| 53 | # else
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| 54 | # define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_LIST_SIZE_D_I(d, list)
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| 55 | # define BOOST_PP_LIST_SIZE_D_I(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
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| 56 | # endif
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| 57 | #
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| 58 | # endif
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