I have not been able to catch divide by zero errors in my code. I've tried many variations of settings in the project file, in debug mode. The result of a divide by zero is infinity, but I want execution to stop and report an error. I reproduced the situation with this code:
i = 0
z = 1.0/i
This runs without reporting any error and writes out Infinity. I'm using Composer XE 2013.