CODEWITHSUNDEEP
swiftswift3
Chris Karani
Chris Karani

Reputation: 40

How can I make my increment or Swift 3 Friendly?

static func randomShape() -> Shape {
    // Find out count of possible shapes
    var maxValue = 0
    while let _ = self.init(rawValue: ++maxValue) {}
    // Generate random number from number of shapes
    let randomNumber = Int(arc4random_uniform(UInt32(maxValue)))
    // Create and return shape
    let shape = self.init(rawValue: randomNumber)!

    return shape
}

Focus on the while let _ = self.init(rawValue: ++maxValue) {}

I et the Error that ++ has been deprecated from Swift, However I don't know how i can change my method to still function right.

I tried MaxValue += 1 and i get the error

'+=' produces '()', not the expected contextual result type 'Int'

Your help is much appreciated!

Upvotes: 0

Views: 4499

Answers (2)

MGY
MGY

Reputation: 8463

@Chris Karani you can use Xcode to fix this kind of issues. Try to use Xcode's red error dots at left of your editor. For instance :

enter image description here

if you will click on "fix-it" it'll handle all for you.

enter image description here

Also you can use "Edit/Convert/To Current Swift Syntax" menu for converting all your project to Swift 3 syntax. Make sure you select your main target from "Select targets to convert" screen.

Your answer is : 

maxValue += 1

Upvotes: 3

Fogmeister
Fogmeister

Reputation: 77631

++value

Basically increments the value first and then uses the new value.

So this...

someFunc(++value)

Is the same as doing...

value += 1
someFunc(value)

Upvotes: 7

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