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Discussion on: What's the longest you've ever spent debugging a single bug?

ferceg profile image

It was very-very long time ago, in the late 90's.
I wrote a little game in Watcom C (somewhere between Wolfenstein and Doom, only walls and simple floor, but with not only perpendicular walls). Trigonometric functions were very expensive, so I used a generated sin table. I copy-pasted it into the source, but it looked ugly, so I lined it up with leading zeros. It was a mistake, because 0****** number are octal in C, so very strange things started to happen on the screen. It took a few hours to debug this and after that I was literally banging my head into the desk.