🚀 go-pugleaf

volpe@bart.crd.ge.com (Christopher R. Volpe) wrote:
[snip:the dead horse that we are beating]
>Silly contrived example using multiple returns:
>
>void manipulate_the_windows(Window *top)
>{
>  Window *A, *B, *C;
>
>  if (top == NULL) {
>	return;
>  }
>
>  do_something_with_window(top);
>  A = get_subwindow(top);
>  if (A == NULL) {
>	return;
>  }
>
>  do_something_different_with_window(A);
>  B = get_subwindow(A);
>  if (B == NULL) {
>	return;
>  }
>
>  do_something_with_window(B);
>  C = get_subwindow(B);
>  if (C == NULL) {
>	return;
>  }
>
>  /* All windows I'm looking for are good, so do it */
>  do_something_weird_with_four_windows(top,A,B,C);
> 
>  return; /* Omit this or not as a matter of taste */
>}


Silly contrived example using one (implicit) return path:

void manipulate_the_windows(Window *top)
{
  Window *A, *B, *C;

  if (top != NULL) {
    do_something_with_window(top);
    A = get_subwindow(top);

    if (A != NULL) {
      do_something_different_with_window(A);
      B = get_subwindow(A);

      if (B != NULL) {
        do_something_with_window(B);
        C = get_subwindow(B);

        if (C != NULL) {
          /* All windows I'm looking for are good, so do it */
          do_something_weird_with_four_windows(top,A,B,C);
        }
      }
    }
  }
}

-- 
Paul Long                               45:29:14N 122:48:09W
plong@perf.com                          http://www.teleport.com/~pciwww/
"Wagging head and tail, the red-tailed fish, unsupported, turns around."