Swift pointer problems with MACH_TASK_BASIC_INFO

Question

I am trying to convert an ObjC stackoverflow answer to Swift and failing. It looks like I am passing a UnsafeMutablePointer when I

Answer 1

Took me a bit to update Airspeed Velocity's answer to the latest swift syntax (Swift 3, beta 6), but here is what I got:

func report_memory() {
    var info = mach_task_basic_info()
    let MACH_TASK_BASIC_INFO_COUNT = MemoryLayout.stride/MemoryLayout.stride
    var count = mach_msg_type_number_t(MACH_TASK_BASIC_INFO_COUNT)

    let kerr: kern_return_t = withUnsafeMutablePointer(to: &info) {
        $0.withMemoryRebound(to: integer_t.self, capacity: MACH_TASK_BASIC_INFO_COUNT) {
            task_info(mach_task_self_,
                      task_flavor_t(MACH_TASK_BASIC_INFO),
                      $0,
                      &count)
        }
    }

    if kerr == KERN_SUCCESS {
        print("Memory in use (in bytes): \(info.resident_size)")
    }
    else {
        print("Error with task_info(): " +
            (String(cString: mach_error_string(kerr), encoding: String.Encoding.ascii) ?? "unknown error"))
    }
}

Hope that's helpful.