1  #include <stdlib.h>
       2  
       3  #define N 32
       4  
       5  unsigned int
       6  foo (int n, unsigned int *a)
       7  {
       8  #pragma acc kernels copy (a[0:N])
       9    {
      10      a[0] = 2;
      11  
      12      for (int i = 0; i < n; i++)
      13        a[i] = 1;
      14    }
      15  
      16    return a[0];
      17  }
      18  
      19  int
      20  main (void)
      21  {
      22    unsigned int a[N];
      23    unsigned res, i;
      24  
      25    for (i = 0; i < N; ++i)
      26      a[i] = i % 4;
      27  
      28    res = foo (N, a);
      29    if (res != 1)
      30      abort ();
      31  
      32    return 0;
      33  }