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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_COMPARISON_LESS_HPP
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15 # define BOOST_PREPROCESSOR_COMPARISON_LESS_HPP
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16 #
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17 # include <boost/preprocessor/comparison/less_equal.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/iif.hpp>
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21 # include <boost/preprocessor/logical/bitand.hpp>
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22 # include <boost/preprocessor/tuple/eat.hpp>
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23 #
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24 # /* BOOST_PP_LESS */
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25 #
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26 # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC())
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27 # define BOOST_PP_LESS(x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL(x, y))
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28 # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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29 # define BOOST_PP_LESS(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y)
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30 # else
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31 # define BOOST_PP_LESS(x, y) BOOST_PP_LESS_I(x, y)
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32 # define BOOST_PP_LESS_I(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y)
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33 # endif
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34 #
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35 # /* BOOST_PP_LESS_D */
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36 #
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37 # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC())
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38 # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D(d, x, y))
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39 # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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40 # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y)
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41 # else
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42 # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_LESS_D_I(d, x, y)
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43 # define BOOST_PP_LESS_D_I(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y)
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44 # endif
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45 #
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46 # endif
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