forked from boostorg/preprocessor
42 lines
1.9 KiB
C++
42 lines
1.9 KiB
C++
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# /* **************************************************************************
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# * *
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# * (C) Copyright Paul Mensonides 2002. Permission to copy, use, *
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# * modify, sell, and distribute this software is granted provided *
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# * this copyright notice appears in all copies. This software is *
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# * provided "as is" without express or implied warranty, and with *
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# * no claim at to its suitability for any purpose. *
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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_CAT_HPP
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# define BOOST_PREPROCESSOR_SEQ_CAT_HPP
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#
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# include <boost/preprocessor/config/config.hpp>
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# include <boost/preprocessor/seq/fold_left.hpp>
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# include <boost/preprocessor/seq/seq.hpp>
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#
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# /* BOOST_PP_SEQ_CAT */
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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_CAT(seq) BOOST_PP_SEQ_FOLD_LEFT(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
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# else
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# define BOOST_PP_SEQ_CAT(seq) BOOST_PP_SEQ_CAT_I(seq)
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# define BOOST_PP_SEQ_CAT_I(seq) BOOST_PP_SEQ_FOLD_LEFT(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
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# endif
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#
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# define BOOST_PP_SEQ_CAT_O(s, st, elem) BOOST_PP_SEQ_CAT_O_I(st, elem)
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# define BOOST_PP_SEQ_CAT_O_I(a, b) a ## b
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#
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# /* BOOST_PP_SEQ_CAT_S */
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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_CAT_S(s, seq) BOOST_PP_SEQ_FOLD_LEFT_ ## s(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
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# else
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# define BOOST_PP_SEQ_CAT_S(s, seq) BOOST_PP_SEQ_CAT_S_I(s, seq)
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# define BOOST_PP_SEQ_CAT_S_I(s, seq) BOOST_PP_SEQ_FOLD_LEFT_ ## s(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
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# endif
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#
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# endif
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