Iterators in Rust are (usually) zero-cost abstractions of loops. Bjarne Stroustrup's definition: What you don’t use, you don’t pay for. And further: What you d

Iterators in Rust are (usually) zero-cost abstractions of loops. Bjarne Stroustrup's definition: What you don’t use, you don’t pay for. And further: What you do use, you couldn’t hand code any better. Rust iterators fit in the second part.