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John Carmack on mutable variables

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498 points azhenley | 1 comments | 31 Oct 25 02:34 UTC | HN request time: 0.209s | source
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gwbas1c ◴[31 Oct 25 03:02 UTC] No.45767877[source]▶
Years ago I did a project where we followed a lot of strict immutability for thread safety reasons. (Immutable objects can be read safely from multiple threads.)

It made the code easier to read because it was easier to track down what could change and what couldn't. I'm now a huge fan of the concept.

replies(1): >>45769474 #
piker ◴[31 Oct 25 08:12 UTC] No.45769474[source]▶
You should check out Rust
replies(1): >>45770733 #
1. gwbas1c ◴[31 Oct 25 11:13 UTC] No.45770733[source]▶
Rust wasn't available at the time.

It probably won't come as a surprise to you, but I am a big fan of Rust.