Miss Dada  🏳️‍⚧️

http://a.zip (b).map(f)

zip would throw away the Some in the Some + None cases, right?

Oh sorry I missed what you were doing in those cases

TBH your match is probably more clear than any named function could be. I'd bet the context for what this is being used for is pretty helpful to understanding why this needs to do what it does

The context is like this: let begin_at = combine_opt(self.begin_at, rhs.begin_at, std::cmp::min); let end_at = combine_opt(self.end_at, rhs.end_at, std::cmp::max);

Oh no this is because `None < Some(_)`

yep exactly, what I actually want is #[derive(Ord)] enum DoublyExtended<T> { NegInf, The(T), PosInf }