Coding Problem

[KDTrade]

I'm trying to build an indicator similar to the ADL except it measures price. The current code is:

Line[0] = ((CurrentBar == 0 ? 0 : Line[1]) + (Close[0] - Open[0]) / (High[0] - Low[0]));

The problem is that it doesn't return anything. There are no error messages and when I add the indicator to my chart nothing appears. What could be wrong with my code to cause this? Also, I tried replacing the / with + and all of a sudden it works but it only provides a line that steadily increases as expected.

[KDTrade]

Found the error, when high - low = 0 it creates an arithmetic error that doesn't count as an error but creates a bug.