138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/**
|
|
* Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form, except as embedded into a Nordic
|
|
* Semiconductor ASA integrated circuit in a product or a software update for
|
|
* such product, must reproduce the above copyright notice, this list of
|
|
* conditions and the following disclaimer in the documentation and/or other
|
|
* materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
|
|
* contributors may be used to endorse or promote products derived from this
|
|
* software without specific prior written permission.
|
|
*
|
|
* 4. This software, with or without modification, must only be used with a
|
|
* Nordic Semiconductor ASA integrated circuit.
|
|
*
|
|
* 5. Any software provided in binary form under this license must not be reverse
|
|
* engineered, decompiled, modified and/or disassembled.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
|
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
// See https://github.com/pfultz2/Cloak/wiki/C-Preprocessor-tricks,-tips,-and-idioms
|
|
|
|
#ifndef ES_UTIL_H__
|
|
#define ES_UTIL_H__
|
|
|
|
#define BOOL(x) COMPL(NOT(x))
|
|
#define IF(c) IIF(BOOL(c))
|
|
|
|
#define CHECK_N(x, n, ...) n
|
|
#define CHECK(...) CHECK_N(__VA_ARGS__, 0,)
|
|
#define PROBE(x) x, 1,
|
|
|
|
#define EAT(...)
|
|
#define EXPAND(...) __VA_ARGS__
|
|
#define WHEN(c) IF(c)(EXPAND, EAT)
|
|
|
|
#define NOT(x) CHECK(PRIMITIVE_CAT(NOT_, x))
|
|
#define NOT_0 PROBE(~)
|
|
|
|
#define COMPL(b) PRIMITIVE_CAT(COMPL_, b)
|
|
#define COMPL_0 1
|
|
#define COMPL_1 0
|
|
|
|
#define CAT(a, ...) PRIMITIVE_CAT(a, __VA_ARGS__)
|
|
#define PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
|
|
|
|
#define IIF(c) PRIMITIVE_CAT(IIF_, c)
|
|
#define IIF_0(t, ...) __VA_ARGS__
|
|
#define IIF_1(t, ...) t
|
|
|
|
#define DEC(x) PRIMITIVE_CAT(DEC_, x)
|
|
#define DEC_0 0
|
|
#define DEC_1 0
|
|
#define DEC_2 1
|
|
#define DEC_3 2
|
|
#define DEC_4 3
|
|
#define DEC_5 4
|
|
#define DEC_6 5
|
|
#define DEC_7 6
|
|
#define DEC_8 7
|
|
#define DEC_9 8
|
|
#define DEC_10 9
|
|
#define DEC_11 10
|
|
#define DEC_12 11
|
|
#define DEC_13 12
|
|
#define DEC_14 13
|
|
#define DEC_15 14
|
|
#define DEC_16 15
|
|
#define DEC_17 16
|
|
#define DEC_18 17
|
|
#define DEC_19 18
|
|
#define DEC_20 19
|
|
#define DEC_21 20
|
|
#define DEC_22 21
|
|
#define DEC_23 22
|
|
#define DEC_24 23
|
|
#define DEC_25 24
|
|
#define DEC_26 25
|
|
#define DEC_27 26
|
|
#define DEC_28 27
|
|
#define DEC_29 28
|
|
#define DEC_30 29
|
|
#define DEC_31 30
|
|
#define DEC_32 31
|
|
|
|
#define EMPTY()
|
|
#define DEFER(id) id EMPTY()
|
|
#define OBSTRUCT(...) __VA_ARGS__ DEFER(EMPTY)()
|
|
#define EXPAND(...) __VA_ARGS__
|
|
|
|
#define EVAL(...) EVAL1(EVAL1(EVAL1(__VA_ARGS__)))
|
|
#define EVAL1(...) EVAL2(EVAL2(EVAL2(__VA_ARGS__)))
|
|
#define EVAL2(...) EVAL3(EVAL3(EVAL3(__VA_ARGS__)))
|
|
#define EVAL3(...) EVAL4(EVAL4(EVAL4(__VA_ARGS__)))
|
|
#define EVAL4(...) EVAL5(EVAL5(EVAL5(__VA_ARGS__)))
|
|
#define EVAL5(...) __VA_ARGS__
|
|
|
|
#define REPEAT(count, macro, ...) \
|
|
WHEN(count) \
|
|
( \
|
|
OBSTRUCT(REPEAT_INDIRECT) () \
|
|
( \
|
|
DEC(count), macro, __VA_ARGS__ \
|
|
) \
|
|
OBSTRUCT(macro) \
|
|
( \
|
|
DEC(count), __VA_ARGS__ \
|
|
) \
|
|
)
|
|
#define REPEAT_INDIRECT() REPEAT
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif // ES_UTIL_H__
|