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memchr.c 351 Bytes
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/*
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 * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
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 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <stddef.h>
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#include <string.h>
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void *memchr(const void *src, int c, size_t len)
{
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	const unsigned char *s = src;
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	while (len--) {
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		if (*s == (unsigned char)c)
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			return (void *) s;
		s++;
	}

	return NULL;
}