A calculator. In fact all the entries to the OMGTWTF contest were calculators -- amazing badly designed, badly implemented, unnecessarily convoluted, and obscurely coded calculators. That was the whole point. Where else but in critical working code would you find such gems as the MakeNegative function?

The twelve finalists are as follows:

OMGWTF Finalist #01: The Buggy 4-Function Calculator
OMGWTF Finalist #02: The FileSystemHashMapNotepadCalculator
OMGWTF Finalist #03: The estimator
OMGWTF Finalist #04: TerseCalc
OMGWTF Finalist #05: WTF Web Calc
OMGWTF Finalist #06: OMG!OCRCAL
OMGWTF Finalist #07: Rube Goldberg's Calculator
OMGWTF Finalist #08: Universal Calculator
OMGWTF Finalist #09: Terry's Calculator
OMGWTF Finalist #10: FerronCalc
OMGWTF Finalist #11: VICE, Virtual Integrated Circuit Engine
OMGWTF Finalist #12: ExtensibleCalc

Tags: Programming, WTF