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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;

}