3 ms·Because who needs performance? Phewby WesolyKubeczek 4y agoBecause who needs performance? Phewsimon_o 4y agoWhy would it be slower? Indexing may incur range checks, but iterators/combinators are pretty much destined to have them elided.vgatherps 4y agoIn my experience with rust, iterators compile down to optimal code until they hit an LLVM cliff and generate insane garbage.