rust_rayon_parallel_sum_of_squares_with_iterators.rs

1use rayon::prelude::*;
2
3fn main() {
4    let input = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
5    
6    // Using par_iter() converts a standard iterator into a parallel one
7    let sum_of_squares: i32 = input.par_iter()
8                                   .map(|&i| i * i)
9                                   .sum();
10                                   
11    println!("The sum of squares is {}", sum_of_squares);
12    assert_eq!(sum_of_squares, 385);
13}