MCUX CLNS
MCUX Crypto Library Normal Secure
mcuxCsslCPreProcessor.h
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/*--------------------------------------------------------------------------*/
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/* Copyright 2019-2020 NXP */
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/* */
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/* NXP Confidential. This software is owned or controlled by NXP and may */
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/* only be used strictly in accordance with the applicable license terms. */
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/* By expressly accepting such terms or by downloading, installing, */
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/* activating and/or otherwise using the software, you are agreeing that */
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/* you have read, and that you agree to comply with and are bound by, such */
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/* license terms. If you do not agree to be bound by the applicable license */
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/* terms, then you may not retain, install, activate or otherwise use the */
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/* software. */
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/*--------------------------------------------------------------------------*/
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#ifndef MCUX_CSSL_C_PRE_PROCESSOR_H_
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#define MCUX_CSSL_C_PRE_PROCESSOR_H_
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#define MCUX_CSSL_CPP_STR(a) #a
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#define MCUX_CSSL_CPP_ADD(a) + (a)
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#define MCUX_CSSL_CPP_CAT_IMPL(a, b) a##b
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#define MCUX_CSSL_CPP_CAT(a, b) \
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MCUX_CSSL_CPP_CAT_IMPL(a, b)
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#define MCUX_CSSL_CPP_CAT3(a, b, c) \
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MCUX_CSSL_CPP_CAT(MCUX_CSSL_CPP_CAT(a, b), c)
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#define MCUX_CSSL_CPP_CAT4(a, b, c, d) \
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MCUX_CSSL_CPP_CAT(MCUX_CSSL_CPP_CAT(a, b), MCUX_CSSL_CPP_CAT(c, d))
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#define MCUX_CSSL_CPP_CAT6(a, b, c, d, e, f) \
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MCUX_CSSL_CPP_CAT3( \
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MCUX_CSSL_CPP_CAT(a, b), \
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MCUX_CSSL_CPP_CAT(c, d), \
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MCUX_CSSL_CPP_CAT(e, f))
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#define MCUX_CSSL_CPP_SEQUENCE_32TO0() \
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32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, \
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16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
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#define MCUX_CSSL_CPP_SEQUENCE_N_UNTIL_3TO0() \
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n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, \
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n, n, n, n, n, n, n, n, n, n, n, n, n, 3, 2, 1, 0
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#define MCUX_CSSL_CPP_SEQUENCE_N_UNTIL_2TO0() \
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n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, \
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n, n, n, n, n, n, n, n, n, n, n, n, n, n, 2, 1, 0
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#define MCUX_CSSL_CPP_ARG_N( \
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_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, \
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_18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, \
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N, ...) \
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N
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#define MCUX_CSSL_CPP_ARGCOUNT_IMPL(...) \
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MCUX_CSSL_CPP_ARG_N(__VA_ARGS__)
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#define MCUX_CSSL_CPP_ARGCOUNT(...) \
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MCUX_CSSL_CPP_ARGCOUNT_IMPL(__VA_ARGS__,MCUX_CSSL_CPP_SEQUENCE_32TO0())
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#define MCUX_CSSL_CPP_ARGCOUNT_2N(...) \
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MCUX_CSSL_CPP_ARGCOUNT_IMPL(__VA_ARGS__,MCUX_CSSL_CPP_SEQUENCE_N_UNTIL_2TO0())
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#define MCUX_CSSL_CPP_ARGCOUNT_3N(...) \
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MCUX_CSSL_CPP_ARGCOUNT_IMPL(__VA_ARGS__,MCUX_CSSL_CPP_SEQUENCE_N_UNTIL_3TO0())
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#define MCUX_CSSL_CPP_OVERLOADED_IMPL(name, n) MCUX_CSSL_CPP_CAT_IMPL(name, n)
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#define MCUX_CSSL_CPP_OVERLOADED(name, ...) \
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MCUX_CSSL_CPP_DEFER2(MCUX_CSSL_CPP_OVERLOADED_IMPL)()(name, MCUX_CSSL_CPP_ARGCOUNT(__VA_ARGS__))
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#define MCUX_CSSL_CPP_OVERLOADED1(name, ...) \
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MCUX_CSSL_CPP_IF_ELSE(MCUX_CSSL_CPP_HAS_ONE_ARG(__VA_ARGS__))( \
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/* If only one arg, use the 1 version */
\
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MCUX_CSSL_CPP_CAT(name,1)(MCUX_CSSL_CPP_FIRST(__VA_ARGS__,
/* ensure extra argument: */
0)) \
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)( \
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/* Otherwise the n version */
\
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MCUX_CSSL_CPP_CAT(name,n)(__VA_ARGS__) \
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)
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#define MCUX_CSSL_CPP_OVERLOADED2(name, ...) \
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MCUX_CSSL_CPP_OVERLOADED_IMPL(name, MCUX_CSSL_CPP_ARGCOUNT_2N(__VA_ARGS__))(__VA_ARGS__)
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#define MCUX_CSSL_CPP_OVERLOADED3(name, ...) \
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MCUX_CSSL_CPP_OVERLOADED_IMPL(name, MCUX_CSSL_CPP_ARGCOUNT_3N(__VA_ARGS__))(__VA_ARGS__)
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/*****************************************************************************
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* Helper macros *
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*****************************************************************************/
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/* Apply a macro to all arguments */
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#define MCUX_CSSL_CPP_MAP(__macro, ...) \
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MCUX_CSSL_CPP_EVAL(MCUX_CSSL_CPP_MAP_IMPL(__macro, __VA_ARGS__))
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/* Evaluate a complex macro (which needs multiple expansions to be processed) */
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#define MCUX_CSSL_CPP_EVAL(...) MCUX_CSSL_CPP_EVAL1024(__VA_ARGS__)
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#define MCUX_CSSL_CPP_EVAL1024(...) MCUX_CSSL_CPP_EVAL512(MCUX_CSSL_CPP_EVAL512(__VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL512(...) MCUX_CSSL_CPP_EVAL256(MCUX_CSSL_CPP_EVAL256(__VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL256(...) MCUX_CSSL_CPP_EVAL128(MCUX_CSSL_CPP_EVAL128(__VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL128(...) MCUX_CSSL_CPP_EVAL64( MCUX_CSSL_CPP_EVAL64( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL64(...) MCUX_CSSL_CPP_EVAL32( MCUX_CSSL_CPP_EVAL32( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL32(...) MCUX_CSSL_CPP_EVAL16( MCUX_CSSL_CPP_EVAL16( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL16(...) MCUX_CSSL_CPP_EVAL8( MCUX_CSSL_CPP_EVAL8( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL8(...) MCUX_CSSL_CPP_EVAL4( MCUX_CSSL_CPP_EVAL4( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL4(...) MCUX_CSSL_CPP_EVAL2( MCUX_CSSL_CPP_EVAL2( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL2(...) MCUX_CSSL_CPP_EVAL1( MCUX_CSSL_CPP_EVAL1( __VA_ARGS__))
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#define MCUX_CSSL_CPP_EVAL1(...) __VA_ARGS__
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/* Recursive definition of map macro, assumes at least one argument */
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#define MCUX_CSSL_CPP_MAP_IMPL(__macro, ...) \
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/* Apply the macro to the first argument from the list */
\
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__macro(MCUX_CSSL_CPP_FIRST(__VA_ARGS__,
/* ensure second argument: */
0)) \
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/* Only proceed if there are additional arguments */
\
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MCUX_CSSL_CPP_IF(MCUX_CSSL_CPP_HAS_MORE_ARGS(__VA_ARGS__))( \
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/* Recursive call for remaining arguments */
\
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MCUX_CSSL_CPP_DEFER2(MCUX_CSSL_CPP_MAP_IMPL_)()(__macro, \
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MCUX_CSSL_CPP_NEXT(__VA_ARGS__)) \
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)
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#define MCUX_CSSL_CPP_MAP_IMPL_() MCUX_CSSL_CPP_MAP_IMPL
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/* Extract first argument (requires at least two arguments to be present) */
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#define MCUX_CSSL_CPP_FIRST(a, ...) a
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/* Extract second argument (requires at least three arguments to be present) */
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#define MCUX_CSSL_CPP_SECOND(a, b, ...) b
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/* Extract second argument (requires at least four arguments to be present) */
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#define MCUX_CSSL_CPP_THIRD(a, b, c, ...) c
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/* Extract second argument (requires at least five arguments to be present) */
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#define MCUX_CSSL_CPP_FOURTH(a, b, c, d, ...) d
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/* Remove the first argument from the list (requires at least two arguments to be present) */
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#define MCUX_CSSL_CPP_NEXT(...) MCUX_CSSL_CPP_NEXT_()(__VA_ARGS__)
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#define MCUX_CSSL_CPP_NEXT_() MCUX_CSSL_CPP_NEXT__
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#define MCUX_CSSL_CPP_NEXT__(x, ...) __VA_ARGS__
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/* Check whether there is more then one argument */
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#define MCUX_CSSL_CPP_HAS_MORE_ARGS(...) \
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MCUX_CSSL_CPP_NOT(MCUX_CSSL_CPP_IS_MARKER(MCUX_CSSL_CPP_SECOND(__VA_ARGS__, MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER())))
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#define MCUX_CSSL_CPP_HAS_ONE_ARG(...) \
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MCUX_CSSL_CPP_IS_MARKER(MCUX_CSSL_CPP_SECOND(__VA_ARGS__, MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER()))
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#define MCUX_CSSL_CPP_HAS_TWO_ARGS(...) \
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MCUX_CSSL_CPP_IS_MARKER(MCUX_CSSL_CPP_THIRD(__VA_ARGS__, MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER()))
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#define MCUX_CSSL_CPP_HAS_THREE_ARGS(...) \
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MCUX_CSSL_CPP_IS_MARKER(MCUX_CSSL_CPP_FOURTH(__VA_ARGS__, MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER(), MCUX_CSSL_CPP_MARKER()))
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/* Check whether the argument is MCUX_CSSL_CPP_MARKER(), return 1 if it is */
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#define MCUX_CSSL_CPP_IS_MARKER(...) \
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MCUX_CSSL_CPP_SECOND(__VA_ARGS__, 0, 0)
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#define MCUX_CSSL_CPP_MARKER() \
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~, 1
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/* Convert any argument into a bool (either 0 or 1), by double negation */
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#define MCUX_CSSL_CPP_BOOL(x) MCUX_CSSL_CPP_NOT(MCUX_CSSL_CPP_NOT(x))
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/* Boolean negation (map value 0 to the marker, and check if we have the marker) */
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#define MCUX_CSSL_CPP_NOT(x) MCUX_CSSL_CPP_IS_MARKER(MCUX_CSSL_CPP_CAT(MCUX_CSSL_CPP_NOT_BOOL_, x))
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#define MCUX_CSSL_CPP_NOT_BOOL_0 MCUX_CSSL_CPP_MARKER()
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/* Convert condition to bool */
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#define MCUX_CSSL_CPP_IF(condition) MCUX_CSSL_CPP_IF_(MCUX_CSSL_CPP_BOOL(condition))
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/* Convert bool to decision defines */
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#define MCUX_CSSL_CPP_IF_(condition) MCUX_CSSL_CPP_CAT(MCUX_CSSL_CPP_IF_BOOL_, condition)
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/* If 0, do nothing*/
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#define MCUX_CSSL_CPP_IF_BOOL_0(...)
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/* If 1, perform action */
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#define MCUX_CSSL_CPP_IF_BOOL_1(...) __VA_ARGS__
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/* Convert condition to bool */
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#define MCUX_CSSL_CPP_IF_ELSE(condition) MCUX_CSSL_CPP_IF_ELSE_IMPL(MCUX_CSSL_CPP_BOOL(condition))
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/* Convert bool to decision defines */
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#define MCUX_CSSL_CPP_IF_ELSE_IMPL(condition) MCUX_CSSL_CPP_CAT(MCUX_CSSL_CPP_IFE_BOOL_, condition)
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/* If 0, ignore action */
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#define MCUX_CSSL_CPP_IFE_BOOL_0(...) MCUX_CSSL_CPP_IFE_BOOL_0_ELSE
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/* Else 0, perform action */
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#define MCUX_CSSL_CPP_IFE_BOOL_0_ELSE(...) __VA_ARGS__
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/* If 1, perform action */
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#define MCUX_CSSL_CPP_IFE_BOOL_1(...) __VA_ARGS__ MCUX_CSSL_CPP_IFE_BOOL_1_ELSE
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/* Else 1, ignore action */
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#define MCUX_CSSL_CPP_IFE_BOOL_1_ELSE(...)
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/* Defer macro expansion */
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#define MCUX_CSSL_CPP_EMPTY()
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#define MCUX_CSSL_CPP_DEFER1(macro) macro MCUX_CSSL_CPP_EMPTY()
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#define MCUX_CSSL_CPP_DEFER2(macro) macro MCUX_CSSL_CPP_EMPTY MCUX_CSSL_CPP_EMPTY()()
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#endif
/* MCUX_CSSL_C_PRE_PROCESSOR_H_ */
mcuxCsslCPreProcessor.h
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