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 vote335 views1 answer
Rust iterate vector backwards
Rust
1 vote340 views1 answer
Rust field is never read remove warning
Rust
0 vote293 views1 answer
Rust month to quarter
Rust
0 vote307 views1 answer
Rust format string
Rust
0 vote318 views1 answer
Rust create multiple variables on a single line
Rust
0 vote350 views1 answer
Rust jump back to an outer loop
Rust
0 vote358 views1 answer
New rust project with cargo
Rust
0 vote321 views1 answer
Convert string to i32 rust
Rust
3 votes460 views1 answer
How to concatenate two &str in rust
Rust
0 vote350 views1 answer
Read file buffer rust
Rust