Do You Know What Go-to Statements Are?

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John Carmack: I was always told in the beginning that, you know, a lot of these go-to statements. That's really bad programming. Is this correct or not? Jumping around code. Sometimes they're the right thing to do. Usually it's because there's a language feature missing like nested breaks. It can sometimes be better to do a go-to cleanup or go-to error rather than having multiple flags,. Multiple if statements littered throughout things. But it is rare. If you grip through all of my code right now, I don't think any of my current code bases would actually have a go-To.

John Carmack is a legendary programmer, co-founder of id Software, and lead programmer of many revolutionary video games including Wolfenstein 3D, Doom, Quake, and the Commander Keen series. He is also the founder of Armadillo Aerospace, and for many years the CTO of Oculus VR. Please support this podcast by checking out our sponsors:
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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(09:49) – Programming languages
(40:53) – Modern programming
(50:55) – Day in the life
(58:45) – Hard work
(1:01:58) – Pizza and Diet Coke
(1:04:43) – Setup
(1:30:01) – id Software
(2:02:50) – Commander Keen
(2:09:36) – Hacker ethic
(2:17:16) – Wolfenstein 3D
(2:37:14) – Doom
(2:51:34) – Quake
(3:15:55) – John Romero
(3:23:42) – Metaverse
(3:52:04) – Elon Musk
(3:57:59) – Mars
(4:07:01) – Nuclear energy
(4:10:39) – AGI
(4:57:51) – Andrej Karpathy
(5:00:50) – Martial arts
(5:09:49) – Advice for young people
(5:18:49) – Meaning of life