1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

use core::ops::Mul;

use super::Vector;

impl<T: Mul<Output = T>, const N: usize> Mul for Vector<T, { N }> {
    type Output = Vector<T, { N }>;

    default fn mul(mut self, rhs: Self) -> Self::Output {
        // safe as both are owned
        self.0
            .iter_mut()
            .zip(rhs.0.iter())
            .for_each(|(v, r)| *v = unsafe { core::ptr::read(v).mul(core::ptr::read(r)) });
        self
    }
}

impl<T: Mul<T, Output = T> + Clone, const N: usize> Mul<T> for Vector<T, { N }> {
    type Output = Vector<T, { N }>;

    fn mul(mut self, rhs: T) -> Self::Output {
        self.0
            .iter_mut()
            .for_each(|v| *v = unsafe { core::ptr::read(v).mul(rhs.clone()) });
        self
    }
}

#[test]
fn one() {
    assert_eq!(Vector::from([2]) * Vector::from([2]), Vector::from([4]));
}