Zhentiw - 博客园

2024年3月12日

[Rust] Thread 4: Safe sharing the data between threads with Arc<T>

摘要： Arc<T> is a type like Rc<T> that is safe to use in concurrent situations. The a stands for atomic, meaning it’s an atomically reference counted type. 阅读全文

posted @ 2024-03-12 16:05 Zhentiw 阅读(21) 评论(0) 推荐(0)

[Rust] Thread 3: move keyword to resolve borrowing problem for closure

摘要： We ofter use movewith closures passed to thread::spawnbecase the closure will then take ownership of the values it uses from the environment, thus tra 阅读全文

posted @ 2024-03-12 15:34 Zhentiw 阅读(20) 评论(0) 推荐(0)

2024年3月8日

[Rust] Thread 2: Waiting all thread to finish using join handler

摘要： Code from previous blog: use std::thread; use std::time::Duration; fn main() { thread::spawn(|| { for i in 1..10 { println!("hi number {} from the spa 阅读全文

posted @ 2024-03-08 20:49 Zhentiw 阅读(21) 评论(0) 推荐(0)

[Rust] Intro Thread: 1. Thread with spawn

摘要： We use spawnto create a new thread: use std::thread; use std::time::Duration; fn main() { thread::spawn(|| { for i in 1..10 { println!("hi number {} f 阅读全文

posted @ 2024-03-08 20:34 Zhentiw 阅读(30) 评论(0) 推荐(0)

2024年3月4日

[Rust] ref keyword for borrow value

摘要： https://doc.rust-lang.org/std/keyword.ref.html struct Point { x: i32, y: i32, } fn main() { let y: Option<Point> = Some(Point { x: 100, y: 200 }); mat 阅读全文

posted @ 2024-03-04 21:57 Zhentiw 阅读(17) 评论(0) 推荐(0)

[Rust] if let & while let

摘要： https://doc.rust-lang.org/rust-by-example/flow_control/if_let.htmlhttps://doc.rust-lang.org/rust-by-example/flow_control/while_let.html If let: #[test 阅读全文

posted @ 2024-03-04 21:53 Zhentiw 阅读(30) 评论(0) 推荐(0)

[Rust] Using .map_err instead of wrap which cause panic

摘要： // Using catch-all error types like `Box<dyn error::Error>` isn't recommended // for library code, where callers might want to make decisions based on 阅读全文

posted @ 2024-03-04 21:28 Zhentiw 阅读(24) 评论(0) 推荐(0)

[Rust] Using Box<dyn error::Error>> return one of miultiple error types at runtime

摘要： use std::error; use std::fmt; use std::num::ParseIntError; fn main() -> Result<(), Box<dyn error::Error>> { let pretend_user_input = "42"; let x: i64 阅读全文

posted @ 2024-03-04 21:15 Zhentiw 阅读(28) 评论(0) 推荐(0)

2024年3月1日

[Rust] PartialEq in test

摘要： #[derive(PartialEq, Debug)] enum CreationError { Negative, Zero, } #[derive(PartialEq, Debug)] struct PositiveNonzeroInteger(u64); impl PositiveNonzer 阅读全文

posted @ 2024-03-01 16:14 Zhentiw 阅读(25) 评论(0) 推荐(0)

[Rust] Using ? operator in the main function

摘要： use std::num::ParseIntError; fn main() -> Result<(), ParseIntError> { let mut token = 100; let pretend_user_input = "8"; let cost = total_cost(pretend 阅读全文

posted @ 2024-03-01 16:08 Zhentiw 阅读(11) 评论(0) 推荐(0)

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