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

For a quick copy and paste solution in Swift 5, use

func reportMemory() {
    var taskInfo = task_vm_info_data_t()
    var count = mach_msg_type_number_t(MemoryLayout.size) / 4
    let result: kern_return_t = withUnsafeMutablePointer(to: &taskInfo) {
        $0.withMemoryRebound(to: integer_t.self, capacity: 1) {
            task_info(mach_task_self_, task_flavor_t(TASK_VM_INFO), $0, &count)
        }
    }
    let usedMb = Float(taskInfo.phys_footprint) / 1048576.0
    let totalMb = Float(ProcessInfo.processInfo.physicalMemory) / 1048576.0
    result != KERN_SUCCESS ? print("Memory used: ? of \(totalMb)") : print("Memory used: \(usedMb) of \(totalMb)")
}