47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
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# /* **************************************************************************
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# * *
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# * (C) Copyright Paul Mensonides 2002.
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# * Distributed under the Boost Software License, Version 1.0. (See
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# * accompanying file LICENSE_1_0.txt or copy at
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# * http://www.boost.org/LICENSE_1_0.txt)
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# * *
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# ************************************************************************** */
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#
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# /* See http://www.boost.org for most recent version. */
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#
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# ifndef BOOST_PREPROCESSOR_SEQ_REST_N_HPP
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# define BOOST_PREPROCESSOR_SEQ_REST_N_HPP
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#
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# include <boost/preprocessor/arithmetic/inc.hpp>
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# include <boost/preprocessor/comparison/not_equal.hpp>
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# include <boost/preprocessor/config/config.hpp>
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# include <boost/preprocessor/control/expr_iif.hpp>
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# include <boost/preprocessor/facilities/identity.hpp>
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# include <boost/preprocessor/logical/bitand.hpp>
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# include <boost/preprocessor/seq/detail/is_empty.hpp>
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# include <boost/preprocessor/seq/detail/split.hpp>
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# include <boost/preprocessor/tuple/elem.hpp>
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#
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# /* BOOST_PP_SEQ_REST_N */
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#
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# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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# define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, BOOST_PP_SEQ_DETAIL_EMPTY_SIZE(seq))
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# else
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# define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_SEQ_REST_N_I(n, seq)
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# define BOOST_PP_SEQ_REST_N_I(n, seq) BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, BOOST_PP_SEQ_DETAIL_EMPTY_SIZE(seq))
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# endif
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#
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# define BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, size) \
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BOOST_PP_EXPR_IIF \
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( \
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BOOST_PP_BITAND \
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( \
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BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY_SIZE(size), \
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BOOST_PP_NOT_EQUAL(n,size) \
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), \
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BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), BOOST_PP_IDENTITY( (nil) seq )))() \
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) \
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/**/
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#
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# endif
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