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 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
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 * may not be used to create, or enable the creation or redistribution of,
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#include "cc_internal.h"
#include <corecrypto/cc_priv.h>

int
cc_cmp_safe(size_t num, const void * ptr1, const void * ptr2)
{
	CC_ENSURE_DIT_ENABLED

	size_t i;
	const uint8_t *s = (const uint8_t *)ptr1;
	const uint8_t *t = (const uint8_t *)ptr2;
	uint8_t flag = ((num <= 0)?1:0); // If 0 return an error
	for (i = 0; i < num; i++) {
		flag |= (s[i] ^ t[i]);
	}
	CC_HEAVISIDE_STEP(flag, flag); // flag=(flag==0)?0:1;
	return flag; // 0 iff all bytes were equal, 1 if there is any difference
}