1  #ifdef __cplusplus
       2  extern "C"
       3  #endif
       4  void abort (void);
       5  
       6  int
       7  main ()
       8  {
       9    int a, b, c, d;
      10    #pragma omp parallel num_threads (4)
      11    #pragma omp single
      12    {
      13      #pragma omp task depend(out : a)
      14      a = 6;
      15      #pragma omp task depend(out : b)
      16      b = 7;
      17      #pragma omp task depend(out : c)
      18      c = 8;
      19      #pragma omp taskwait depend(in : a, c)
      20      d = a + c;
      21      #pragma omp task depend(out : a)
      22      a = 9;
      23      #pragma omp task depend(out : c)
      24      c = 10;
      25    }
      26    if (a != 9 || b != 7 || c != 10 || d != 6 + 8)
      27      abort ();
      28    return 0;
      29  }