String() doesn't sort in natural order

[dolmen]

s := sets.New(0, 1, 2, 10, 11, 100)
fmt.Println(s)

gives:

0,1,10,100,11,2

https://go.dev/play/p/y78ROJLKJOe

I expect keys to be sorted by their value, not their string representation.

[dolmen]

Well, that would require elements to be ordered which is a stricter constraint than comparable. :(

[ldemailly]

it's a whole nightmare with comparable vs ordered... see the JSON Marshaler for the pain that it is