Random number generator (device): Difference between revisions

'<code>rand'</code> used to be part of Rust standard library but it was extracted as a 'crate' (https://crates.io/crates/rand). <code>OsRng</code> uses the appropriate device for many platforms including Unix, Windows, BSD, and iOS (listed [https://docs.rs/rand/0.4/rand/os/struct.OsRng.html here]). Other methods like <code>RDRAND</code> can be found in other crates (https://crates.io/crates/rdrand).

<lang rust>extern crate rand;

use rand::{RngOsRng, OsRngRng};

let rand_num: u32 = rng.next_u32gen();

println!("{}", rand_num);