[Cs254f11] safe casting

[Wm. Josiah Erikson]

Hey guys,
     I was having trouble with my error routine occasionally throwing 
things like "IllegalArgumentException 
java.lang.IllegalArgumentException: Value out of range for long" because 
I was casting things to an int first (then I got lots of errors like 
this), then to a long (in an attempt to get rid of the problem), because 
I wanted to remove the decimals, but then I discovered unchecked-int, 
which casts to an int and just truncates it if it doesn't fit. Nice. And 
fine, since it's just the output of my error routine, and if that is too 
big to fit in an int, well then it's just really really bad, and we 
already knew that :)

     In case it's helpful for anyone else.
     -Josiah