The “State” pattern is a behavioural design pattern that allows an object to alter its behaviour when its internal state changes. In Rust, like in other programming languages, you can implement the State pattern to encapsulate different states of an object and manage the transitions between those states. Ok what does that actually mean? Fast […]
A raw pointer and a function pointer are both types of pointers in programming, but they have different purposes and use cases: Raw Pointer: Function Pointer: In summary, the key differences are that raw pointers are used for general memory address manipulation and don’t carry type information, while function pointers specifically point to functions and […]
The following is an example with a closure and a struct that uses it: In this example, we have a Calculator struct that takes a generic type parameter T, which is expected to be a closure. The closure should take two f32 arguments and return an f32. The struct has a single field named operation […]
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 […]
