1#include <mach/mach.h>
2#include <stdio.h>
3
4int main(void)
5{
6    long long good = 5 * 1000000000LL;
7    long long bad = 5 * NSEC_PER_SEC;
8
9    printf("%lld\n%lld\n", good, bad);
10    if (good == bad ){
11        printf("[PASS] successfully verified that (5 * 1000000000LL) == (5 * NSEC_PER_SEC). \n");
12        return 0;
13    }else {
14	printf("[FAIL] NSEC_PER_SEC is not long long.\n");
15	return -1;
16	}
17    /* by default return as error */
18
19    return 1;
20}
21