[swift-users] UnsafePointer to UInt64

[Martin R]

// Int to pointer:
let ptr = UnsafePointer<Double>(bitPattern: 123)!
print(ptr) // 0x000000000000007b

// Pointer to Int:
let int = Int(bitPattern: ptr)
print(int) // 123

Int has the same size as a pointer on both 32-bit and 64-bit platforms.

Regards, Martin

> On 16 Feb 2017, at 14:27, Rien via swift-users <swift-users at swift.org> wrote:
> 
> What would be the easiest (and fastest) way to convert a pointer to an (unsigned)integer?
> 
> Ptr -> String -> Int
> 
> seems a bit cumbersome to me :-)
> 
> Regards,
> Rien
> 
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