Single pseudo-random generator in Rust

xor_shift64.rs

pub struct XorShift64 {
    a: u64,
}

impl XorShift64 {
    pub fn next(&mut self) -> u64 {
        let mut x = self.a;
        x ^= x << 13;
        x ^= x >> 7;
        x ^= x << 17;
        self.a = x;
        x
    }
}

fn main() {
    let mut rng = XorShift64 { a: 123456789 };
    for _ in 0..10 {
        println!("{}", rng.next());
    }
}