Just add the indicator on your chart and play with the settings to check for the infinite loop or not.

At point 1, the B and C S/R were not so relevant as they are by now (IMO). To check them, and since the indicator is only “graphical” and doesn’t return values, you first need to return all calculated levels (by changing the code). But, we also need first to know how many level you want to be returned (12 by default in the code), as without dynamic arrays, we must know in advance how many variable the indicator should return.