Printing a variable memory address in swift

Question

Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar], from Objective-C, in the new Swift language?

For example:

let str = "A String" println(" str value \(str) has address: ?") 

Answer 1

Note: This is for reference types.

Swift 4/5:

print(Unmanaged.passUnretained(someVar).toOpaque()) 

Prints the memory address of someVar. (thanks to @Ying)

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Swift 3.1:

print(Unmanaged<AnyObject>.passUnretained(someVar as AnyObject).toOpaque()) 

Prints the memory address of someVar.

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