Get random enum rust

Your own enum

Like most abstractions in Rust, random value generation is powered by traits. Implementing a trait is the same for any particular type, the only difference is exactly what the methods and types of the trait are.
Rand 0.5, 0.6, 0.7, and 0.8

Implement Distribution using your enum as the type parameter. You also need to choose a specific type of distribution; Standard is a good default choice. Then use any of the methods to generate a value, such as rand::random:

use rand::{
    distributions::{Distribution, Standard},
    Rng,
}; // 0.8.0

#[derive(Debug)]
enum Spinner {
    One,
    Two,
    Three,
}

impl Distribution<Spinner> for Standard {
    fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> Spinner {
        // match rng.gen_range(0, 3) { // rand 0.5, 0.6, 0.7
        match rng.gen_range(0..=2) { // rand 0.8
            0 => Spinner::One,
            1 => Spinner::Two,
            _ => Spinner::Three,
        }
    }
}

fn main() {
    let spinner: Spinner = rand::random();
    println!("{:?}", spinner);
}

Source: stackoverflow.com

Similar codes

0 vote199 views1 answer
Rust match wildcard
Rust
0 vote202 views1 answer
Rust month to quarter
Rust
-1 vote234 views1 answer
Rustlang how to run a program
Rust
0 vote228 views1 answer
How to make Rust panic ?
Rust
1 vote211 views1 answer
Array as a parameter rust
Rust
4 votes289 views1 answer
How to index a string in rust
Rust
1 vote209 views2 answers
Rust sleep
Rust
0 vote225 views1 answer
Rust get items in a list
Rust
0 vote231 views1 answer
Rust tuple vs vec
Rust
1 vote211 views1 answer
Rust convertinging string to int
Rust