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/* Trivial test of single.  */

/* { dg-require-effective-target sync_int_long } */

#include <omp.h>

#include <sys/time.h>

#include <unistd.h>

#include <assert.h>

#include "libgomp_g.h"

static int test;

static void f_nocopy (void *dummy)

{

  if (GOMP_single_start ())

    {

      int iam = omp_get_thread_num ();

      int old = __sync_lock_test_and_set (&test, iam);

      assert (old == -1);

    }

}

static void f_copy (void *dummy)

{

  int *x = GOMP_single_copy_start ();

  if (x == NULL)

    {

      int iam = omp_get_thread_num ();

      int old = __sync_lock_test_and_set (&test, iam);

      assert (old == -1);

      GOMP_single_copy_end (&test);

    }

  else

    assert (x == &test);

}

int main()

{

  omp_set_dynamic (0);

  test = -1;

  GOMP_parallel_start (f_nocopy, NULL, 3);

  f_nocopy (NULL);

  GOMP_parallel_end ();

  test = -1;

  GOMP_parallel_start (f_copy, NULL, 3);

  f_copy (NULL);

  GOMP_parallel_end ();

  return 0;

}