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struct
built on top of pub trait Num
can't compile if pub trait Num
doesn't impl Debug
#318
Comments
#[test]
fn test_debug_trait_impl() {
use num_traits::Num;
use std::ops::Add;
pub struct LengthNArrayOfTypeT<const N: usize, T: Num>([T; N]);
impl<const N: usize, T: Num + Clone> Add for LengthNArrayOfTypeT<N, T> {
type Output = Self;
fn add(self, rhs: Self) -> Self {
LengthNArrayOfTypeT(
self.0
.iter()
.zip(rhs.0.iter())
.map(|(a, b)| a.clone() + b.clone())
.collect::<Vec<T>>()
.try_into()
.unwrap(),
)
}
}
} is an example of code that can't compile because of this issue. |
You should add
The place your example encounters this doesn't have anything to do with being a numeric type. The error is from your Or you could rewrite this to update the value in-place: fn add(mut self, rhs: Self) -> Self {
for (a, b) in std::iter::zip(&mut self.0, rhs.0) {
*a = a.clone() + b;
}
self
} And with |
I know. I started needing to add it everywhere, so I started looking into different approaches.
Thank you for the suggestion. |
You could define your own extended trait: trait MyNum: num_traits::Num + Clone + Debug {}
impl<T> MyNum for T where T: num_traits::Num + Clone + Debug {} |
No description provided.
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