1  /* PR libgomp/42942 */
       2  /* { dg-do run } */
       3  /* { dg-additional-options "-Wno-deprecated-declarations" } */
       4  
       5  #include <omp.h>
       6  #include <stdlib.h>
       7  
       8  int
       9  main (void)
      10  {
      11    int e = 0;
      12    omp_set_dynamic (0);
      13    omp_set_nested (1);
      14    omp_set_max_active_levels (1);
      15    if (omp_get_max_active_levels () != 1)
      16      abort ();
      17  #pragma omp parallel num_threads(2) reduction(|:e)
      18    if (!omp_in_parallel ()
      19        || omp_get_num_threads () != 2)
      20      e = 1;
      21    else
      22  #pragma omp parallel num_threads(2) reduction(|:e)
      23      if (!omp_in_parallel ()
      24  	|| omp_get_num_threads () != 1)
      25        e = 1;
      26    if (e)
      27      abort ();
      28    omp_set_max_active_levels (0);
      29    if (omp_get_max_active_levels () != 0)
      30      abort ();
      31  #pragma omp parallel num_threads(2) reduction(|:e)
      32    if (omp_in_parallel ()
      33        || omp_get_num_threads () != 1)
      34      e = 1;
      35    else
      36  #pragma omp parallel num_threads(2) reduction(|:e)
      37      if (omp_in_parallel ()
      38  	|| omp_get_num_threads () != 1)
      39        e = 1;
      40    if (e)
      41      abort ();
      42    omp_set_max_active_levels (2);
      43    if (omp_get_max_active_levels () != 2)
      44      abort ();
      45  #pragma omp parallel num_threads(2) reduction(|:e)
      46    if (!omp_in_parallel ()
      47        || omp_get_num_threads () != 2)
      48      e = 1;
      49    else
      50  #pragma omp parallel num_threads(2) reduction(|:e)
      51      if (!omp_in_parallel ()
      52  	|| omp_get_num_threads () != 2)
      53        e = 1;
      54      else
      55  #pragma omp parallel num_threads(2) reduction(|:e)
      56        if (!omp_in_parallel ()
      57  	  || omp_get_num_threads () != 1)
      58  	e = 1;
      59    if (e)
      60      abort ();
      61    return 0;
      62  }