jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

Lisoph

#![feature(conservative_impl_trait)]

fn take<'a>(take: &'a str) -> impl Fn(&'a str) -> (&'a str, &'a str) {
    move |input| {
        let len = input.chars().zip(take.chars()).take_while(|&(i, t)| i == t).count();
        (&input[0..len], &input[len..])
    }
}

fn chain<'a, F1, F2>(first: F1, second: F2) -> impl Fn(&'a str) -> ((&'a str, &'a str), &'a str)