Do you need to release CGContextRef in Swift?

Question

I\'ve created a context using CGBitmapContextCreate. Do I need to release it using CGContextRelease? I know the answer is yes in Objective-C, but how about in Swift?

Answer 1

No, you don't need to call CGContextRelease. In fact, trying to gives you this error:

'CGContextRelease' is unavailable: Core Foundation objects are automatically memory managed

CGContext instances are automatically memory managed in Swift. You can tell from the function signature:

func CGBitmapContextCreate(/* several parameters */) -> CGContext!

A return value you would need to release yourself would look like:

func CGBitmapContextCreate(/* several parameters */) -> Unmanaged!