如何修复C样式的语句? [英] How to fix C-style for statement?

问题描述

为下面发布的代码修复 C样式的语句的正确方法是什么?

What is right way to fix C-style for statement for the code which is posted below?

目前，我正在交战:

不推荐使用C样式的statement，以后将其删除 版本

C-style for statement is deprecated and will be removed in a future version of Swift

var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
if getifaddrs(&ifaddr) == 0 {
    // Warning
    for (var ptr = ifaddr; ptr != nil; ptr = ptr.memory.ifa_next) {
        // Do some stuff...
    }
}

推荐答案

您可以将for循环转换为while循环:

You could convert the for loop into a while loop:

var ptr = ifaddr
while ptr != nil {
    // Do stuff
    ptr = ptr.memory.ifa_next
}

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