array__ops 1.0.3

A selection of useful array operations
Documentation 
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
33
34
35
36
37
38
39
40
41

use core::ops::Mul;

use array_trait::Array;
use slice_ops::AsSlice;

use crate::form::ArrayForm;

use super::ArrayZipOuterWith;

#[const_trait]
pub trait ArrayMulOuter<T, const N: usize>: Array + AsSlice<Item = T>
{
    fn mul_outer<Rhs, const M: usize>(&self, rhs: &Rhs) -> [[<T as Mul<Rhs::Elem>>::Output; M]; N]
    where
        T: Mul<Rhs::Elem> + Copy,
        Rhs: ArrayForm<M, Elem: Copy>;

    async fn mul_outer_async<Rhs, const M: usize>(&self, rhs: &Rhs) -> [[<T as Mul<Rhs::Elem>>::Output; M]; N]
    where
        T: Mul<Rhs::Elem> + Copy,
        Rhs: ArrayForm<M, Elem: Copy>;
}

impl<T, const N: usize> ArrayMulOuter<T, N> for [T; N]
{
    fn mul_outer<Rhs, const M: usize>(&self, rhs: &Rhs) -> [[<T as Mul<Rhs::Elem>>::Output; M]; N]
    where
        T: Mul<Rhs::Elem> + Copy,
        Rhs: ArrayForm<M, Elem: Copy>
    {
        self.zip_outer_with(rhs, Mul::mul)
    }
    
    async fn mul_outer_async<Rhs, const M: usize>(&self, rhs: &Rhs) -> [[<T as Mul<Rhs::Elem>>::Output; M]; N]
    where
        T: Mul<Rhs::Elem> + Copy,
        Rhs: ArrayForm<M, Elem: Copy>
    {
        self.zip_outer_async_with(rhs, async |x, y| x*y).await
    }
}