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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