How do I use the Rayon library in Rust?

How do I use the Rayon library in Rust?

The Rayon library in Rust is used for data parallelism. You can start by adding it to your Cargo.toml file.

What are some basic examples of using Rayon?

You can use Rayon to parallelize operations like map and reduce. For example, you can use par_iter() to iterate over a collection in parallel.

Can you show me a code snippet?

Sure! Here's a simple example:

use rayon::prelude::*;

fn main() {
    let numbers = vec![1, 2, 3, 4, 5];
    let sum: i32 = numbers.par_iter().map(|&x| x * 2).sum();
    println!("Sum: {}", sum);
}

What if I want to use Rayon with a custom struct?

You can implement the Send and Sync traits for your struct to use it with Rayon. Just ensure your data is thread-safe.