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one-time initialization of static variables at runtime
November 20, 2024 / Last updated : November 20, 2024 admin Rust Programming

lazy static (Rust)

Here’s an example demonstrating how to use lazy_static to initialize a global logger with thread-safe access in Rust. The code is structured to illustrate safe concurrency and the advantages of lazy initialization while remaining simple enough for a beginner to grasp. lazy_static: Mutex for Thread Safety: Global Logger: Future Expansion:

benchmark in Rust
November 19, 2024 / Last updated : November 20, 2024 admin Rust Programming

Rust Benchmark

using the criterion crate This is a very very basic demo I made to learn how to benchmark my own function. I made a new project, added a lib.rs and then made a function inside lib.rs called “cycler” This is a tiny function so won’t really make full use of the benchmarks but I wanted […]

"Understanding 1D Arrays for 2D Pixel Storage in Graphics"
November 15, 2024 / Last updated : November 19, 2024 admin Rust Programming

Understanding 1D Arrays for 2D Pixel Storage in Graphics

Let’s look at how each pixel’s colour is stored in a single 32-bit integer using the RGBA format 1D Array Representation The buffer is a 1D array that stores the pixel colors for each pixel in the window. The array’s length is width * height, and each entry in the array is a 32-bit integer […]

flat map
November 12, 2024 / Last updated : November 12, 2024 admin Rust Programming

flatten v flat_map

flatten v flat_map – what’s the difference? In Rust, flat_map and flatten are both methods used for transforming and simplifying nested structures, but they serve slightly different purposes and apply to different contexts. 1. flat_map Example: Explanation: 2. flatten Example: Explanation: Key Differences flatten v flat_map – Summary Table Method When to Use Produces Example […]

abacus
November 7, 2024 / Last updated : November 7, 2024 admin Rust Programming

Arithmetic Sequence in Rust

https://www.codewars.com/kata/52de553ebb55d1fca3000371/train/rust Try the challenge on CodeWars first – and then have a look at my solution which is mainly based on this challenge. What did I learn from this? Well, I worked out that using a HashMap was a neat way to identify the gap that was different to the others. What else? Starting from […]

A checksum is often used over something like an MD5 hash for speed and simplicity when you only need to quickly verify data integrity or detect errors.
November 6, 2024 / Last updated : November 7, 2024 admin Rust Programming

Checksum Calculator in Rust

A checksum is often used over something like an MD5 hash for speed and simplicity when you only need to quickly verify data integrity or detect errors. Just for some practice let’s guess (brute force) a checksum, we’ll provide the checksum and then work out what data would produce the checksum : Note the use […]

trait-object
November 3, 2024 / Last updated : November 4, 2024 admin Rust Programming

Rust – Trait Object – Dynamic Dispatch Example

Let’s consider a more real-world example. Imagine you have a system that represents different types of data sources, like Database and File, each implementing a DataSource trait. The DataSource trait has a method get_backup_source that returns a backup data source as a trait object. This could be useful if your application needs to switch to […]

map err
October 25, 2024 / Last updated : November 5, 2024 admin Rust Programming

map_err challenge

Use ? in functions where you want to propagate errors up to the caller. This allows the function to remain clean and focused on its main task while delegating error handling to the caller.

cute cat
October 24, 2024 / Last updated : November 5, 2024 admin Rust Programming

The Iterator Trait

when implementing the Iterator trait in Rust, your struct usually needs some form of state to keep track of the iteration’s progress. Often, this is achieved by including a counter or index field in your struct. https://doc.rust-lang.org/stable/book/ch13-02-iterators.html?highlight=iterator%20trait#the-iterator-trait-and-the-next-method Also, check out : https://doc.rust-lang.org/stable/book/ch19-03-advanced-traits.html#specifying-placeholder-types-in-trait-definitions-with-associated-types impl Iterator for Here’s a basic example of how to implement an iterator […]

October 23, 2024 / Last updated : October 23, 2024 admin Rust Programming

Learn libp2p in Rust

“The Rust Implementation of the libp2p networking stack.” https://github.com/libp2p/rust-libp2p/blob/master/libp2p/src/tutorials/ping.rs Peer-to-peer networking library libp2p is an open source networking library used by the world’s most important distributed systems What is a swarm? A swarm in libp2p represents a group of peers that can communicate over a P2P network. It provides the necessary abstractions for connection management, message […]

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