07. How to print the memory address of a variable?

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Swift › 01. Tips

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We can print the memory address of a variable like this:

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var a = 100
withUnsafePointer(to: &a) {ptr in print(ptr)}
//result: 0x00007ff7bfeff210

Or using the following method is OK:

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func printPointer<T>(ptr: UnsafePointer<T>) {
    print(ptr)
}
var a = 100
printPointer(ptr: &a)
//result: 0x00007ff7bfeff220