This Rust code defines a simple struct called Coord and implements some methods for it. The Coord struct has two fields, x and y, representing coordinates in a two-dimensional space. Create the struct Make an implementation The Coord::new() function is a constructor method that creates a new Coord instance with initial values of x set […]
Did the code from ChatGPT compile straight away? No. Keep reading to see what I had to fix… The Cargo file is the main reason why it didn’t compile, and interestingly the screenshot here uses the Coinbase API, but an earlier question to ChatGPT replied with code using CoinGecko. Each time the issues were with […]
If you have any interest computer science or own any money at all then learning about Bitcoin is time well spent. The best training resource that you can start with is the “Saylor Academy : Bitcoin for developers“ The video below was first broadcast 8th March 2023 and just after halfway through has a great […]
One of the frustrations with learning from some text books is that they set vague exercises at the end of a chapter without being explicit in the nature of the task and therefore no solution either…. For example “Write a function to convert text to ascii” Codewars Replace With Alphabet Position I’ve started to use […]
Whilst it’s not the best use of recursion it’s a common tutorial and interview example. As Al Sweigart says “The Recursive Factorial Algorithm Is Terrible” ~ https://inventwithpython.com/recursion/chapter2.html# Nevertheless, as a learning exercise, it’s a good way to get your feet wet. One of they key concepts to understand is “stack unwinding” – which you can […]
This is an initial example of Traits in Rust. There are more complicated examples than this but to get started this is a nice way to understand how to create a Trait and how to use it. Try the code: Try this code in Rust Playground : https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=6e50061eff5ac64ceed63bd55ff767e6 Note how the definition part on line […]
Some Rust HashMap examples, using get, match, and finding by key and by value. Example code is provided at the Rust Playground for you to try out: https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=3a2b4caa8ef8bfe616794f802eb11376 https://gist.github.com/3a2b4caa8ef8bfe616794f802eb11376
Using secp256k1 Rust bindings for Pieter Wuille’s secp256k1 library, which is used for fast and accurate manipulation of ECDSA signatures on the secp256k1 curve. Such signatures are used extensively by the Bitcoin network and its derivatives. secp256k1 This article shows the code used to create a public/private keypair using secp.generate_keypair in Rust. Also, make sure […]
We write a program using Rust to take user input and display the result back to the user. This tutorial shows how to get the input, parse it, convert it to/from a string and then display it. We begin with the io module: “The std::io module contains a number of common things you’ll need when doing input […]
In Rust rather than have to create separate structs to accept variables with different data types you can use a generic struct, eg accepting a float…or an integer. Without this, you would need to make one struct to accept u8 and one struct to f64 (if they are the 2 data types you desire). Let’s […]