switch is unstructured to a large degree:

  switch (val)
    while (cond)
    {
      case 42: /* wee: if val is 42, we go straight here */
        break; /* this belongs to the while! */
    }

I have written this kind of jig the past:

   if (...) {

   } else switch (val) for(;;) {

   }

:)