您可以在Swift中执行相同的操作（为简便起见，省略了错误检查）：
func platform() -> String {
var size : Int = 0 // as Ben Stahl noticed in his answer
sysctlbyname("hw.machine", nil, &size, nil, 0)
var machine = [CChar](count: size, repeatedValue: 0)
sysctlbyname("hw.machine", &machine, &size, nil, 0)
return String.fromCString(machine)!
}
func platform() -> String {
var size = 0
sysctlbyname("hw.machine", nil, &size, nil, 0)
var machine = [CChar](repeating: 0, count: size)
sysctlbyname("hw.machine", &machine, &size, nil, 0)
return String(cString: machine)
}
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