On: Flattening Rust’s learning curve

[whyever]

How often do you care about the order in which objects are dropped?

[throwawaymaths → whyever]

anything where you need to have stuff run in constant time.

[mikepurvis → throwawaymaths]

If you're in hard realtime land then you can't have any allocations at all; that's a pretty different ballgame.

Destructors should be as simple and side-effect free as possible, with the exception of things like locks or file handles where the expectation is very clear that the object going out of scope will trigger a release action.