Convert UnsafeMutableRawPointer to UnsafeMutablePointer<T> in swift 3

Question

I have this code

let grayData = UnsafeMutablePointer<UInt8>(other: malloc(width * height * sizeof(UInt8)))

Which doesn't compile in Swift 3. How do I fix this?

Answer 1

In your case, you'd better use allocate(capacity:) method.

let grayData = UnsafeMutablePointer<UInt8>.allocate(capacity: width * height)