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- #include <omp.h>
- #include <stdlib.h>
- int
- main (void)
- {
- int i = 0, j = 0, k = ~0;
- double d = 1.0;
- #pragma omp parallel num_threads(4) reduction(+:i) reduction(*:d) reduction(&:k)
- {
- if (i != 0 || d != 1.0 || k != ~0)
- #pragma omp atomic
- j |= 1;
-
- if (omp_get_num_threads () != 4)
- #pragma omp atomic
- j |= 2;
- i = omp_get_thread_num ();
- d = i + 1;
- k = ~(1 << (2 * i));
- }
- if (j & 1)
- abort ();
- if ((j & 2) == 0)
- {
- if (i != (0 + 1 + 2 + 3))
- abort ();
- if (d != (1.0 * 2.0 * 3.0 * 4.0))
- abort ();
- if (k != (~0 ^ 0x55))
- abort ();
- }
- return 0;
- }
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