[swift-users] How to get UnsafePointer or UnsafeMutablePointer from ContiguousArray?

[David Turnbull]

You want testarr2.withUnsafeMutableBufferPointer().

-david

On Wed, Feb 10, 2016 at 11:09 PM, Sergey Kuratov via swift-users <
swift-users at swift.org> wrote:

> Hello!
>
> I got some problem with ContiguousArray<->C interaction - I can't
> get address of array buffer to process in native code.
>
> Could somebody help me to get?
>
>
> Actually I also didn't find init(Array<...>) in UnsafePointer interface.
>
> I wonder what initialiser is used when UnsafePointer<T>(Array<T>)?
>
>
> Here is sample code:
>
>
> class Test {
>
> var a = 0
>
> }
>
>
> var testarr1 : Array<Test> = [ Test(), Test() ]
>
> var testarr2 : ContiguousArray<Test> = [ Test(), Test() ]
>
>
> let arrPtr1 = UnsafePointer<Test>(testarr1)
>
> let arrPtr2 = UnsafePointer<Test>(testarr2) <- error "Cannot invoke
> initialiser..."
>
>
>
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