In Swift 2.2, I could do the following:
var cublasHandle : COpaquePointer = nil
let status = cublasCreate_v2(&cublasHandle)
Where cublasCreate_v2 is a C function that takes a pointer, and then
initializes some memory at that address.
I haven't been able to figure out an equivalent in Swift 3. Any
suggestions, especially to documentation, would be greatly appreciated.