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420 points gnabgib | 2 comments | 15 May 25 21:57 UTC | HN request time: 0.437s | source

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qingcharles ◴[15 May 25 22:22 UTC] No.43999955[source]▶

I love these incomprehensible magic number optimizations. Every time I see one I wonder how many optimizations like this we missed back in the old days when we were writing all our inner loops in assembly?

Does anyone have a collection of these things?

replies(4): >>43999992 #>>44000134 #>>44000173 #>>44000633 #

1. owl_vision ◴[15 May 25 22:55 UTC] No.44000173[source]▶

>>43999955 #

there is "Hacker's Delight" by Henry S. Warren, Jr.

https://en.wikipedia.org/wiki/Hacker's_Delight

replies(1): >>44000223 #

2. qingcharles ◴[15 May 25 23:01 UTC] No.44000223[source]▶

>>44000173 (TP) #

Looks awesome, thank you :)

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