In Swift, how to generically limit function to types that understand T + T

Question

I would like to have a generic function that can use the plus operator on two values.

class funccalc {
    func doAdd(x:T,y:T) -> T {
        ret         


        

Answer 1

Have you tried using the protocol AdditiveArithmetic?

https://developer.apple.com/documentation/swift/additivearithmetic

Looks like thats exactly what you are looking for. That protocol has the method:

static func + (Self, Self) -> Self

Using your that protocol your method becomes:

class funccalc {
    func doAdd(x:T,y:T) -> T {
        return x + y
    }
}