1  extern void abort(void);
       2  
       3  int foo ()
       4  {
       5    int mat[2][1];
       6    int (*a)[1] = mat;
       7    int det = 0;
       8    int i;
       9    mat[0][0] = 1;
      10    mat[1][0] = 2;
      11    for (i = 0; i < 2; ++i)
      12      det += a[i][0];
      13    return det;
      14  }
      15  
      16  int main()
      17  {
      18    if (foo () != 3)
      19      abort ();
      20    return 0;
      21  }
      22