> Since a NonNull<T> can never be null, the compiler knows it can use the 0 addr... | Hacker News

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		sedatk 77 days ago \| parent \| context \| favorite \| on: Under the hood: Vec<T> > Since a NonNull<T> can never be null, the compiler knows it can use the 0 address to represent the None variant when it sees an Option<NonNull<T>> I didn't know this about Rust. That's awesome.

danhau 77 days ago [–]

Same optimizations apply to the various NonZero types, IIRC.

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