Is there a more idiomatic way to initialize an arr

Question

Is there an idiomatic way of initialising arrays in Rust. I'm creating an array of random numbers and was wondering if there is a more idiomatic way then just doing a for loop. My current code works fine, but seems more like C than proper Rust:

let mut my_array: [u64; 8] = [0; 8];
for i in 0..my_array.len() {
    my_array[i] = some_function();
}

Answer 1

Various sized arrays can be directly randomly generated:

use rand; // 0.6.5

fn main() {
    let my_array: [u64; 8] = rand::random();
    println!("{:?}", my_array);
}

Currently, this only works for arrays of size from 0 to 32 (inclusive). Beyond that, you will want to see related questions:

• How can I initialize an array using a function?
• What is the proper way to initialize a fixed length array?