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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
}