44782fd8af
Use `do { ... } while (false)' instead of `do { ... } while (0)'.
Use comparisons with zero instead of implicitly testing integers.
Use comparisons with NULL instead of implicitly testing pointers.
Use comparisons with NUL instead of implicitly testing plain chars.
Use `bool' instead of `int' to represent Boolean values.
Use `while (true)' instead of `while (1)' to express infinite loops.
Signed-off-by: frei tycho <tfrei@baumer.com>
19 lines
320 B
C
19 lines
320 B
C
/*
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* Copyright (c) 2018 Google LLC.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/sys/crc.h>
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uint8_t crc7_be(uint8_t seed, const uint8_t *src, size_t len)
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{
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while (len-- != 0UL) {
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uint8_t e = seed ^ *src++;
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uint8_t f = e ^ (e >> 4) ^ (e >> 7);
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seed = (f << 1) ^ (f << 4);
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}
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return seed;
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}
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