[Question] static_operator with infix

[NikKovIos]

Can't figure out how to declare infix operator without warning. Help please.

[SimplyDanny]

This should work:

infix operator +?

extension Int {
  static func +? (a: Self?, b: Self) -> Self? {
    if let a { a + b } else { nil }
  }
}

The idea is that operators should be static and associated with the type. But the operator declaration needs to go to file scope. It cannot be part of the extension.

[NikKovIos]

Work!