1#include <omp.h>
2#include <stdlib.h>
3
4int
5main (void)
6{
7  int i = 0, j = 0, k = 0, l = 0;
8#pragma omp parallel num_threads(4) reduction(-:i) reduction(|:k) \
9		     reduction(^:l)
10  {
11    if (i != 0 || k != 0 || l != 0)
12#pragma omp atomic
13      j |= 1;
14
15    if (omp_get_num_threads () != 4)
16#pragma omp atomic
17      j |= 2;
18
19    i = omp_get_thread_num ();
20    k = 1 << (2 * i);
21    l = 0xea << (3 * i);
22  }
23
24  if (j & 1)
25    abort ();
26  if ((j & 2) == 0)
27    {
28      if (i != (0 + 1 + 2 + 3))
29	abort ();
30      if (k != 0x55)
31	abort ();
32      if (l != 0x1e93a)
33	abort ();
34    }
35  return 0;
36}
37