1  jumptab (a)
       2  {
       3    int b;
       4    switch (a)
       5      {
       6      case 0:
       7        b = 6;break;
       8      case 1:
       9        b = 5;break;
      10      case 2:
      11        b = 4;break;
      12      case 3:
      13        b = 3;break;
      14      case 4:
      15        b = 2;break;
      16      case 5:
      17        b = 1;break;
      18      }
      19    return b;
      20  }