Post-ID: thread-20070710103707-qdb-97327
Created-At: 2007-07-10T10:37:07Z
Board-Tags: general
Imported-Score-Seed: 2023
Imported-Vote-Count-Seed: 2959

DWang: a friend of mine
DWang: used 3 minutes on his phone last month
DWang: but he got refunded 4!
DWang: the phone company apparently uses 4-byte unsigned ints
DWang: because it UNDERFLOWED
DWang: he apparently used 2^32 minutes at 10 cents a minute
DWang: so he got a bill
DWang: for $430 MILLION