Module 2: Challenge 2

General Discussion
21

As the error message says, you need to make your Card struct conform to the Equatable protocol. Equatable is what lets you do == between two items.

To conform to Equatable, you would need to write a == function to tell the compiler how to test equality between two Cards.

HOWEVER, since Card's two properties are Int and String, which are already Equatable, you don’t need to do anything to make Card itself Equatable except this:

struct Card: Equatable {
    var cnumb:Int
    var suit:String
}

The compiler is able to synthesize Equatable conformance for you if all the properties are themselves Equatable once you tell it to do so.