本文簡要介紹rust語言中 std::mem::ManuallyDrop.new 的用法。
用法
pub const fn new(value: T) -> ManuallyDrop<T>包裝要手動刪除的值。
例子
use std::mem::ManuallyDrop;
let mut x = ManuallyDrop::new(String::from("Hello World!"));
x.truncate(5); // You can still safely operate on the value
assert_eq!(*x, "Hello");
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注：本文由純淨天空篩選整理自rust-lang.org大神的英文原創作品 std::mem::ManuallyDrop.new。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。