实例方法
move()
检索并返回引用的实例,将指针的内存返回到未初始化状态。
声明
func move() -> Pointee
返回值
此指针引用的实例。
详述
在引用类型为 T
的内存的指针 p
上调用 move()
方法等效于以下代码,除了复制和销毁值的任何成本和附带副作用:
let value: T = {
defer { p.deinitialize(count: 1) }
return p.pointee
}()
必须初始化此指针引用的内存。调用 move()
后,内存未初始化。
可用版本
iOS 8.0+, iPadOS 8.0+, macOS 10.10+, Mac Catalyst 13.0+, tvOS 9.0+, watchOS 2.0+
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注:本文由纯净天空筛选整理自apple.com大神的英文原创作品 UnsafeMutablePointer move()。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。