Questions tagged [rust]
Rust is a systems programming language focused on three goals: safety, speed, and concurrency. It maintains these goals without needing a garbage collector, making it a useful language for a number of use cases other languages aren't good at: embedding in other languages, programs with specific space and time requirements, and writing low-level code, like device drivers and operating systems.
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Shift and merge numbers as in 2048 game code
I started to learn Rust last night. Given its parallelization capabilities, I thought a good starting point would be porting my C++ AI for 2048 to Rust.
This is the function implementing the shift ...
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Rust Brainfuck interpreter
I took the code from kostyas benchmarks for the Rust Brainfuck interpreter and tried to optimize it. There is also a discussion on Reddit about the poor performance of Rust in the Benchmark.
Before ...
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Calculate mean, median, and mode in Rust
I'm learning Rust using The Rust Programming Language. I'm trying the assignment at the end of chapter 8 — Hash Maps.
The task is:
Given a list of integers, use a vector and return the mean (...
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Repository pattern in Rust
I'm looking to add a thin layer of abstraction for database interaction in my application. I'm not really looking for a full blown ORM or advanced query builder.
I am familiar with Diesel, but its ...
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Wanted a cat. Got lolcat
Wanna learn Rust? Ya rly!
I can haz FizzBuzz? No wai!
Gimme /bin/cat then. But rustc say LOL! Must handle teh err0rz!
Now iz ...
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Shoe shine shop model in Rust
I'm learning Rust and a few questions did arise during translation of my C++ code to Rust. There are comments in Rust code I'd like to be answered. Is there an idiomatic way to solve this task? The ...
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Binary Tree Implementation in Rust
To teach myself Rust, I implemented a naive binary tree with support for insert, delete and lookup operations as well as in-order iteration.
I'm still a little rusty (no pun intended) when it comes ...
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Web crawler in Rust
I am learning Rust. I have written a web crawler that would scrape all the pages from my own blog (which is running on Ghost) and would generate a static version of it. Because of this, I'm not ...
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Download files in parallel
This module has a ensure_downloaded function which takes a slice of Urls. It downloads all of the urls to a local downloads ...
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Writing slice compare in a more compact way
I have this code snippet comparing two slice references:
...
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Simple cat in Rust
I'm learning Rust, from a Python background, and while I've used languages like C and C++ in the (distant) past, system languages aren't really my specialty.
I would just like to know if my code is ...
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Circular FIFO Buffer
I was bored the other day and got to wondering how I would implement a circular FIFO buffer in Rust. My goal was to create an implementation I could use on a bare metal microcontroller. This means no ...
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(Lisp in (Rust))
I loved Norvig's Lispy, and made the first version of it in Rust, to learn Rust. I would love your thoughts :)
A few specific questions:
Is there a way to write ...
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IPv6 parsing in rust
Here is code to parse an IPv6 address.
An IPv6 address is 128 bits long.
When represented in its printable form, its hextets (1 hextet == 16 bits) are represented as hexadecimal numbers, and are ...
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How can I find out why this Rust program to echo lines from stdin is slow?
Given the following Rust program:
...
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K-Means in Rust
I have implemented for learning purposes a simple K-Means clustering algorithm in Rust. For those who are not familiar: you are given N points, say in the plane, ...
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Recursive Fibonacci in Rust with memoization
I'm trying to come up with an "elegant" way of calculating Fibonacci for number in Rust, using recursion and memoization (self-imposed requirements).
This is what I have so far:
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How Rusty is my generic union-find implementation?
I decided to implement a DisjointSet<T> data structure myself in Rust, with no dependencies except for std, for the ...
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Rust language tag implementation
language-tags is my first crate, it is hosted on GitHub and I uploaded it to Crates.io. It parses language tags like en-US into useful parts, like language and ...
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Tokenize s-expressions in Rust
I'm writing an s-expression tokenizer in Rust.
I have the following code written, but it is not idiomatic Rust - it is quite ugly. TokenizerI is simply an ...
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Lotto simulator
With the recent craziness of the Powerball in the US, I got interested in building a little lotto simulator to see how frequently I could win with purchasing large amounts of tickets.
For those not ...
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Laptop battery level monitor for Linux
I come from a C background and am trying to learn Rust. I wrote my first Rust program, to check the battery level on my laptop and warn me if it's low/critical.
It works fine, but I wrote it in a ...
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Gamma function in Rust
The gamma function is one of a couple nice continuous extensions to the traditional factorial function. I used this Python program as a reference, which in turn, uses this Ada program. As the Ada ...
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Binary trees in Rust: iterators
This is a follow-up to Basic binary tree manipulation in Rust, where Shepmaster suggested that I implement the Iterator trait for the binary tree.
This ended up ...
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Brainf*** interpreter in Rust
I'm learning Rust coming from an intermediate background in Python. I've completed the first 8 chapters of the book and I wanted a project that would solidify the concepts I learned, so I made a ...
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Intcode computer in Rust
This is my first attempt to learn Rust by applying it for a problem that I assume is suitable for the language. It's the Intcode computer from https://adventofcode.com/2019.
I've implemented all the ...
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Simplest way to write "FizzBuzz" in Rust
Can you write an a simpler Rust fizzbuzz program than I have? Use my output or the spec:
Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of ...
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n-th Fibonacci number with memoization
I am learning Rust and decided to create a simple program to calculate n-th Fibonacci number. It uses a vector for memoization. The program works, but what would you suggest to improve here? Maybe ...
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Selection sort algorithm in Rust
I am just trying to use Rust so I will be thankful for all remarks and corrections:
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Binary adder implemented in Rust
I implemented a ripple carry adder in Rust. The function takes and outputs strings of 1s and 0s.
How can I improve this ...
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Fraction type in Rust
Inspired by another question here on Code Review, I decided to try implementing a Fraction type in Rust.
Requirements:
Able to be added, subtracted, multiplied, ...
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Dijkstra's algorithm in Rust
I'd love to get feedback on my first go at Dijkstra's algorithm in Rust:
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Boggle solver in Rust - Looking for speedup
I recently made a boggle solver in Rust to compensate for the fact that I'm really bad at boggle. This has also been a good Rust learning experience. The code does what it's supposed to quite well but ...
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Advent of Code 2018 day 15 - Naive Rust program
I solved the Advent of Code problems last year in Python, and I wanted to learn a new language this year, so I decided to write up Part 1 of on of the hardest problems from last year - problem 15 - in ...
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Traceroute implementation in Rust
I made this simple traceroute implementation using the libpnet library, which sends ICMP echo probes with an increasing time-to-...
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Fahrenheit and Celsius converter in Rust
I made a program that converts between Celsius and Fahrenheit. Is there any way that I could make this code more efficient and cleaner?
...
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Optimise Game of Life in Rust
I recently picked up Rust and was making a CLI for Conway's Game of Life. I got it working but, looking back at it, there are places it could be improved. The main one is the function that generates ...
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Rust Echo Command Implementation
I'm just starting out in Rust and I find the concept of ownership confusing so I wrote an implementation of the echo command. I would like to know if I could have ...
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Port of NLTK tokenizing code from Python to Rust
I'm working on a port of NLTK to Rust.
I am fairly new to Rust, so I wanted to post a small file to check if I was writing idiomatic Rust. I've included the original Python. The Python has docstrings ...
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A Rusty implementation of CowSay
I'm making my first foray into Rust. I wanted to copy a fun and non utilitarian tool so I chose CowSay. It's not feature complete (CowSay has a lot of options) but it's a start.
My primary reasons ...
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Calculating word-wise CRC
This is a small program to calculate the CRC for an STM32 program image, compatible with the CRC on the STM32 hardware. It's a word-wise CRC, and the bin file is encoded as a series of 32 bit little ...
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Multithreaded bogosort in Rust
For some quick context, I'm fairly new to Rust and decided to give myself a difficult-but-attainable task of implementing a sorting algorithm. I chose bogosort (or stupid-sort, shuffle-sort, whatever ...
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Implement a generic Fibonacci sequence in Rust without using Copy trait
I'm trying to learn Rust and am a beginner. How does one go about implementing a generic version of the Fibonacci sequence without using Copy trait in Rust? My code ...
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The rusty Sieve of Eratosthenes
To get familiar with the Rust language I've decided to implement the method of Sieve of Eratosthenes to find primes up to a number N.
I have created the following code that both prints the prime ...
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Rust Novice's Tic Tac Toe
Introduction
I am a Rust novice. So far, I have finished reading the first 15 chapters of The Rust Programming Language (a.k.a. the book). Here's my first big Rust project — Tic Tac Toe.
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Log sorting program
This is my first ever program written in Rust (after reading the book). It is small tool to sort all lines from stdin according to two criteria. First one is time ...
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Recursively pop the last node from a singly linked list
I am exploring different ways of implementing a linked list in Rust as a learning project. In one particular place, I've got some code that works properly, but it makes multiple calls to unwrap--I am ...
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Replace string in file
This is my first module I wrote in Rust. I'm new to the language and couldn't find a way to easily replace some words in a file, so that's my go at it. If there's already something like that and I ...
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Ntree: a reimplementation of the tree utility
tree is described as "a recursive directory listing command that produces a depth indented listing of files" on the homepage for its Linux implementation. I don't ...
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