Possible compiler bug with this simple program

This is a discussion on Possible compiler bug with this simple program within the ADA forums in Programming Languages category; Thanks for all the help, everyone. I have a report back that the program (both the simple example and the actual application) work correctly on at least one of the formerly hanging machines. As some of you suggested, the fix was to use a constrained array starting from 0 and making it long enough to handle any reasonable usage. Not especially elegant, but good enough. Jerry...