zoukankan      html  css  js  c++  java
  • Advanced Features

    Unsafe Rust

    So far, you can see that Rust has a strict memory safety guarantee at compile time. However, sometimes this safety guarantee can be annoying (or to say for the most of the time).

    Therefore, Rust has a second language hidden inside that doesn't enforce these memory safety guarantees: it's called unsafe Rust and works just like regular Rust, but gives us extra superpowers.

    When the compiler tries to tell whether or not the code upholds the memory safety rules, it's better to reject some valid programs than accept some invalid programs. This results to that sometimes your code may be OK for you, but won't compile. In these cases, you can use the unsafe block to tell the compiler that you can guarantee that your code is acceptable.

    Another reason Rust has an unsafe alter ego is that the underlying computer hardware is inherently unsafe. If Rust didn't let you do unsafe operations, you couldn't do certain tasks.

    Unsafe Superpowers

    You can take five operations in unsafe Rust, called unsafe superpowers, that you can't in safe Rust.

    我愿潇洒如鹰,远离地上宿命
  • 相关阅读:
    windows本地提权——2003笔记
    Windows与linux添加用户命令
    反弹shell集锦
    提权-特权升级
    常见端口
    git泄露利用脚本
    Thinkphp5命令执行利用
    Thinkphp2.1漏洞利用
    打ms15-034补丁出现“此更新 不适用于您的计算机”
    Hyda爆破
  • 原文地址:https://www.cnblogs.com/lunar-ubuntu/p/14401392.html
Copyright © 2011-2022 走看看