withUnsafePointer in Swift 2

Question

I\'m trying to check if the user has internet connection, and part of the process involves invoking withUnsafePointer. In Swift 1.x, I was able to use:

Answer 1

The error message is misleading, the problem is that SCNetworkReachabilityCreateWithAddress() does not return an unmanaged object anymore, so you must not call takeRetainedValue():

var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)

let defaultRouteReachability = withUnsafePointer(&zeroAddress) {
    SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0))
}

Note also the simplified creation of C structs like struct sockaddr_in which was introduced with Swift 1.2 (if I remember correctly).