1  typedef struct creal_T {
       2    double re;
       3    double im;
       4  } creal_T;
       5  
       6  #define N 16
       7  int main() {
       8    int k;
       9    int i;
      10    int j;
      11    creal_T t2[N];
      12    double inval;
      13  
      14    inval = 1.0;
      15    for (j = 0; j < N; ++j) {
      16      t2[j].re = 0;
      17      t2[j].im = 0;
      18    }
      19  
      20    for (j = 0; j < N/4; j++) {
      21      i = j * 4;
      22      t2[i].re = inval;
      23      t2[i].im = inval;
      24      k = i + 3;
      25      t2[k].re = inval;
      26      t2[k].im = inval;
      27      t2[i] = t2[k];
      28      t2[k].re = inval;
      29    }
      30  
      31    for (i = 0; i < 2; ++i)
      32      if (t2[i].re != !i || t2[i].im != !i)
      33        __builtin_abort ();
      34  
      35    return 0;
      36  }