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boost_preprocessor/include/boost/preprocessor/control/while.hpp

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initial revision [SVN r15203]
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# /* Copyright (C) 2001
# * Housemarque Oy
# * http://www.housemarque.com
# *
Converted files to the BSL based on the permissions in more/blanket-permission.txt [SVN r25052]
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# * Distributed under the Boost Software License, Version 1.0. (See
# * accompanying file LICENSE_1_0.txt or copy at
# * http://www.boost.org/LICENSE_1_0.txt)
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# */
#
# /* Revised by Paul Mensonides (2002) */
Implement tuple limits for TUPLE functionality. Add updated copyright for changed files.
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# /* Revised by Edward Diener (2020) */
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#
# /* See http://www.boost.org for most recent version. */
#
# ifndef BOOST_PREPROCESSOR_CONTROL_WHILE_HPP
# define BOOST_PREPROCESSOR_CONTROL_WHILE_HPP
#
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# include <boost/preprocessor/arithmetic/dec.hpp>
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# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/debug/error.hpp>
# include <boost/preprocessor/detail/auto_rec.hpp>
# include <boost/preprocessor/list/fold_left.hpp>
# include <boost/preprocessor/list/fold_right.hpp>
# include <boost/preprocessor/logical/bitand.hpp>
# include <boost/preprocessor/config/limits.hpp>
#
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# /* BOOST_PP_WHILE */
#
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# if 0
# define BOOST_PP_WHILE(pred, op, state)
# endif
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#
Support for expanded numbers up to 512, as well as expanded while iterationms up to 512.
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# if BOOST_PP_LIMIT_WHILE == 256
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# define BOOST_PP_WHILE BOOST_PP_CAT(BOOST_PP_WHILE_, BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 256)))
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# elif BOOST_PP_LIMIT_WHILE == 512
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# define BOOST_PP_WHILE BOOST_PP_CAT(BOOST_PP_WHILE_, BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 512)))
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# elif BOOST_PP_LIMIT_WHILE == 1024
# define BOOST_PP_WHILE BOOST_PP_CAT(BOOST_PP_WHILE_, BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 1024)))
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# else
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# error Incorrect value for the BOOST_PP_LIMIT_WHILE limit
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# endif
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#
# define BOOST_PP_WHILE_P(n) BOOST_PP_WHILE_P_DEC(BOOST_PP_DEC(n))
#
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# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
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# define BOOST_PP_WHILE_P_DEC(n) BOOST_PP_BITAND(BOOST_PP_CAT(BOOST_PP_WHILE_CHECK_, BOOST_PP_CAT(BOOST_PP_WHILE_ , n)(BOOST_PP_WHILE_F, BOOST_PP_NIL, BOOST_PP_NIL)), BOOST_PP_BITAND(BOOST_PP_CAT(BOOST_PP_LIST_FOLD_LEFT_CHECK_, BOOST_PP_CAT(BOOST_PP_LIST_FOLD_LEFT_ , n)(BOOST_PP_NIL, BOOST_PP_NIL, BOOST_PP_NIL)), BOOST_PP_CAT(BOOST_PP_LIST_FOLD_RIGHT_CHECK_, BOOST_PP_CAT(BOOST_PP_LIST_FOLD_RIGHT_ , n)(BOOST_PP_NIL, BOOST_PP_NIL, BOOST_PP_NIL))))
Updated limit implementation.
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# else
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# define BOOST_PP_WHILE_P_DEC(n) BOOST_PP_BITAND(BOOST_PP_CAT(BOOST_PP_WHILE_CHECK_, BOOST_PP_CAT(BOOST_PP_WHILE_ , n)(BOOST_PP_WHILE_F, BOOST_PP_NIL, BOOST_PP_NIL)), BOOST_PP_CAT(BOOST_PP_LIST_FOLD_LEFT_CHECK_, BOOST_PP_CAT(BOOST_PP_LIST_FOLD_LEFT_ , n)(BOOST_PP_NIL, BOOST_PP_NIL, BOOST_PP_NIL)))
Updated limit implementation.
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# endif
#
# define BOOST_PP_WHILE_F(d, _) 0
#
# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# include <boost/preprocessor/control/detail/edg/while.hpp>
# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
# include <boost/preprocessor/control/detail/msvc/while.hpp>
# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
# include <boost/preprocessor/control/detail/dmc/while.hpp>
# else
# include <boost/preprocessor/control/detail/while.hpp>
# endif
#
# if BOOST_PP_LIMIT_WHILE == 256
# define BOOST_PP_WHILE_257(p, o, s) BOOST_PP_ERROR(0x0001)
Added 1024 as maximum number
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# elif BOOST_PP_LIMIT_WHILE == 512
Updated limit implementation.
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# define BOOST_PP_WHILE_513(p, o, s) BOOST_PP_ERROR(0x0001)
Added 1024 as maximum number
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# elif BOOST_PP_LIMIT_WHILE == 1024
# define BOOST_PP_WHILE_1025(p, o, s) BOOST_PP_ERROR(0x0001)
Updated limit implementation.
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# endif
#
# define BOOST_PP_WHILE_CHECK_BOOST_PP_NIL 1
#
# if BOOST_PP_LIMIT_WHILE == 256
# include <boost/preprocessor/control/limits/while_256.hpp>
Added 1024 as maximum number
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# elif BOOST_PP_LIMIT_WHILE == 512
Updated limit implementation.
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# include <boost/preprocessor/control/limits/while_256.hpp>
# include <boost/preprocessor/control/limits/while_512.hpp>
Added 1024 as maximum number
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# elif BOOST_PP_LIMIT_WHILE == 1024
# include <boost/preprocessor/control/limits/while_256.hpp>
# include <boost/preprocessor/control/limits/while_512.hpp>
# include <boost/preprocessor/control/limits/while_1024.hpp>
Updated limit implementation.
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# endif
initial revision [SVN r15203]
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#
# endif
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