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1 # /* **************************************************************************
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2 # * *
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3 # * (C) Copyright Paul Mensonides 2002.
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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_ARRAY_REPLACE_HPP
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13 # define BOOST_PREPROCESSOR_ARRAY_REPLACE_HPP
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14 #
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15 # include <boost/preprocessor/arithmetic/inc.hpp>
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16 # include <boost/preprocessor/array/elem.hpp>
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17 # include <boost/preprocessor/array/push_back.hpp>
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18 # include <boost/preprocessor/comparison/not_equal.hpp>
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19 # include <boost/preprocessor/config/config.hpp>
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20 # include <boost/preprocessor/control/deduce_d.hpp>
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21 # include <boost/preprocessor/control/iif.hpp>
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22 # include <boost/preprocessor/control/while.hpp>
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23 # include <boost/preprocessor/tuple/elem.hpp>
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24 #
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25 # /* BOOST_PP_ARRAY_REPLACE */
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26 #
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27 # define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
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28 # define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
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29 #
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30 # /* BOOST_PP_ARRAY_REPLACE_D */
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31 #
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32 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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33 # define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
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34 # else
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35 # define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
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36 # define BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
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37 # endif
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38 #
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39 # define BOOST_PP_ARRAY_REPLACE_P(d, state) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(5, 4, state)))
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40 #
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41 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
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42 # define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
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43 # else
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44 # define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_TUPLE_ELEM(5, 1, state), BOOST_PP_TUPLE_ELEM(5, 2, state), BOOST_PP_TUPLE_ELEM(5, 3, state), BOOST_PP_TUPLE_ELEM(5, 4, state))
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45 # endif
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46 #
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47 # define BOOST_PP_ARRAY_REPLACE_O_I(n, i, elem, res, arr) (BOOST_PP_INC(n), i, elem, BOOST_PP_ARRAY_PUSH_BACK(res, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_ELEM(n, arr), elem)), arr)
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48 #
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49 # endif
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