In my Railroad Tycoon implementation , I have a function call tree that’s quite heavy : I loop over every train, updating each one (position is updated mutably for performance), and some trains will be entering important decision points or stations, so if I want to keep things functional (and I do), I…

Returning large tuples vs records

Zeta June 4, 2025, 2:37pm 5

Also labeled tuples are on their way: First alpha release of OCaml 5.4.0!

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