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#include <omp.h>
#include <stdlib.h>
int
main (void)
{
int i = 0, j = 0, k = ~0, l;
double d = 1.0;
#pragma omp parallel num_threads(4)
{
#pragma omp single
{
i = 16;
k ^= (1 << 16);
d += 32.0;
}
#pragma omp for reduction(+:i) reduction(*:d) reduction(&:k)
for (l = 0; l < 4; l++)
{
if (omp_get_num_threads () == 4 && (i != 0 || d != 1.0 || k != ~0))
#pragma omp atomic
j |= 1;
if (l == omp_get_thread_num ())
{
i = omp_get_thread_num ();
d = i + 1;
k = ~(1 << (2 * i));
}
}
if (omp_get_num_threads () == 4)
{
if (i != (16 + 0 + 1 + 2 + 3))
#pragma omp atomic
j |= 2;
if (d != (33.0 * 1.0 * 2.0 * 3.0 * 4.0))
#pragma omp atomic
j |= 4;
if (k != (~0 ^ 0x55 ^ (1 << 16)))
#pragma omp atomic
j |= 8;
}
}
if (j)
abort ();
return 0;
}
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