Rayon variable ownership

help
#1

I'm a bit confused regarding the ownership system and how it works with the parallel iterators in rayon. For example:

let x = 10;
(0..100).into_par_iter().for_each(|y| {
  let z = x + y;
  println!("{}", z);
  println!("{}", x);
});

How is the ownership over x defined across multiple threads here??

#2

The closure borrows from x. It doesn't own it.

1 Like
#3

So essentialy, x is passed as a reference into the closure?

#4

Yes

#5

Many thanks! :smile: This clears things up