How do I initialize variable with a enum type in rust?

Question

for example ,

enum People {
    Bad,
    Good,
}

I would like to initialize a variable with enum type,
I would then have if statement that assign enum value to variable,
And I would like to use variable like:

fn main(){
    People he;
    if sth {
         he = People::Good;
    }else{
         he = People::Bad;
    }
    dosth(&he);
}

I looked at the docs but cant figure out how to.

I am inclined to say that these two questions answer this one: stackoverflow.com/questions/32180684/… stackoverflow.com/questions/73432621/… — E_net4
– E_net4, Commented Jan 10, 2023 at 16:59
@E_net4thecommentflagger I saw the second, but don't think this is a duplicate of either. The real question is what we should do with users that clearly didn't even try to learn the language. I'd like to close this question, but I can't find a valid reason. — Chayim Friedman
– Chayim Friedman, Commented Jan 10, 2023 at 17:02
Remember, in Rust if can return a value, so he = if ... is valid code. — tadman
– tadman, Commented Jan 10, 2023 at 17:02

Chayim Friedman · Accepted Answer · 2023-01-10 19:37:37Z

3

You are probably trying to write:

enum People {
    Bad,
    Good,
}

fn dosth(p: &People) {}

fn main() {
    let he;
    if true {
        he = People::Good;
    } else {
        he = People::Bad;
    }
    dosth(&he);
}

Rust uses the keyword let to define a variable. You can assign it a type, like let he: People;, but usually Rust is able to figure out the type by itself. Rust is very strongly typed, if it can't figure out the type, it will give you a compiler error.

edited Jan 10, 2023 at 19:37

Chayim Friedman

76.1k5 gold badges96 silver badges140 bronze badges

answered Jan 10, 2023 at 18:34

Finomnis

23.5k2 gold badges33 silver badges38 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How do I initialize variable with a enum type in rust?

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related