在swift中打印可变内存地址

时间 2019-09-24

标签 swift 栏目 Swift

无论如何用新的 swift语言模拟[NSString stringWithFormat：@“％p”,myVar]代码？

例如：

let str = "A String"
println(" str value \(str) has address: ?")

斯威夫特2

现在这是标准库的一部分：unsafeAddressOf.

/// Return an UnsafePointer to the storage used for `object`.  There's
/// not much you can do with this other than use it to identify the
/// object

斯威夫特3

对于Swift 3,使用withUnsafePointer：

var str = "A String"
withUnsafePointer(to: &str) {
    print(" str value \(str) has address: \($0)")
}