在Swift中声明自引用指针 [英] Declaring self-referencing pointers in Swift

问题描述

这个Obj-C代码迅速等效于什么?

What would be the equivalent in swift of this Obj-C code?

我在猜测CMutableVoidPointer

I'm guessing something with CMutableVoidPointer

static void *CapturingStillImageContext = &CapturingStillImageContext;

推荐答案

可能是这样的:

var CapturingStillImageContext: COpaquePointer = nil
withUnsafePointer(&CapturingStillImageContext) {
    CapturingStillImageContext = COpaquePointer($0) }

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