1

Currently, my code looks like this:

struct Node<T>: Hashable

where T: Equatable, T: Hashable {
....
}

Is there a more easy notation to write the same thing? Thanks!

2

Hashable refines Equatable so your constraint can just be where T: Hashable—or were you looking for a syntax for the general struct S<T>: P where T: P construct for arbitrary P?

3

Thanks,
I was looking for what is the syntax for specifying two constraints on the same type more concisely than repeating the type.

4

You can use T: P & Q to avoid repetition.

4 Likes
5 
struct Node<T: Hashable>: Hashable {
    ...
3 Likes