Kristijan Sedlak xpepermint

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Developing the future

Open-source engineer

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xpepermint / binary_search.rs

Created November 4, 2022 16:23

Find chunk index in buffer of chunks using binary search algorithm.

	fn main() {

	// vector of data built from 4-bytes chunks
	let mut buf = vec![];
	buf.extend(1u32.to_be_bytes());
	buf.extend(10u32.to_be_bytes());
	buf.extend(20u32.to_be_bytes());
	buf.extend(47u32.to_be_bytes()); // searching for this one
	buf.extend(59u32.to_be_bytes());
	buf.extend(63u32.to_be_bytes());

xpepermint / from-linux.rs

Last active May 2, 2022 09:25

Rust random number

	use std::fs::File;
	use std::io::Read;

	fn main() {
	let mut f = File::open("/dev/urandom").unwrap(); // from Linux
	let mut buf = [0u8; 16];
	f.read_exact(&mut buf).unwrap();

	println!("{:?}", buf);
	}

xpepermint / u32_struct.rs

Last active October 7, 2021 21:14

Reimplementation of a u32 type in Rust.

	use std::ops;

	#[derive(Debug, Default, Clone, Copy, Eq, Hash, PartialEq, PartialOrd, Ord)]
	pub struct U32(u32);

	impl ops::Add for U32 {
	type Output = Self;
	fn add(self, rhs: Self) -> Self {
	Self(self.0 + rhs.0)
	}

xpepermint / example.rs

Created September 26, 2021 18:09

Check if struct implements a specific trait

	```rs
	// Based on: https://www.reddit.com/r/rust/comments/ehr8ct/announcing_impls_a_macro_to_determine_if_a_type/

	// trait for T
	trait TTrate {
	const VALUE: bool = false;
	}
	impl<T> TTrate for T {}

	// custom trait

xpepermint / Function accepts struct or function pointer

Created April 21, 2020 10:36

Rust generic traits

	// Parameter that each resolver accepts.
	pub struct Intent {}

	// Resolver definition.
	pub trait Resolver {
	fn resolve(&self, intent: Intent) -> Result<usize, usize>;
	}
	impl<F: Fn(Intent) -> Result<usize, usize>> Resolver for F {
	fn resolve(&self, intent: Intent) -> Result<usize, usize> {
	self(intent)

xpepermint / xcert-certification-example-for-ethereum.js

Last active October 10, 2021 17:16

0xcert.org certification

	const { Cert } = require('@0xcert/cert');
	const { HttpProvider } = require('@0xcert/ethereum-http-provider');
	const { AssetLedger } = require('@0xcert/ethereum-asset-ledger');

	(async () => {

	const schema = {
	"$schema": "http://json-schema.org/draft-07/schema",
	"description": "A digital assets that have a unique combination of different properties.",
	"properties": {

xpepermint / gist:2ce1d9aaa134db8fed1b90c87292a373

Created December 31, 2018 12:19

Geth setup with Docker

	```
	docker run -d \
	--name geth-test \
	-p 8545:8545 \
	-v ~/.docker/machine/volumes/geth-test/data:/root/.ethereum \
	ethereum/client-go \
	--testnet \
	--rpc \
	--rpcaddr "0.0.0.0" \
	--rpccorsdomain "*" \

xpepermint / nuxt.config.js

Created November 25, 2018 10:47

Fix for: [nuxt] Error while initializing app ReferenceError: exports is not defined

	export default {
	build: {
	extend(config, { isDev }) {
	if (isDev) config.resolve.symlinks = false
	},
	},
	}

xpepermint / .travis.yml

Created October 4, 2018 08:10

Codecov setup

	---
	language: node_js
	node_js:
	- 9
	- 10
	script:
	# use latest npm to work on node9
	- npm install -g npm
	# codecov
	- npm install -g codecov

xpepermint / README.md

Last active November 14, 2022 19:48

RushJS cheatsheet

Commands

Install dependencies:

npm install -g @microsoft/rush

Initialize the project:

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