ios - CGPoint compiler error -


i've tried write expression:

 var  movedifference: cgpoint = cgpoint(touchpoint.x - self.anchorpointinpoints().x, touchpoint.y - self.anchorpointinpoints().y)

but xcode swears:

argument labels '(_:, _:)' not match available overloads

please fix problem.

thanks in advance.

you missed argument labels on cgpoint initializer:

cgpoint(x: ..., y: ...)

also: type inference, don't need redeclare var type:

var movedifference = cgpoint(...

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