Move question

[steel saddle]

Noob question, but why does the first example move the value in the vector but the second doesn't?

First:

    let mut v = Vec::new();

    for i in 101..106 {
        v.push(i.to_string());
    }

    let third = v[2]; // moves
    let fifth = v[4]; // moves

Second:

    let v2 = vec![1, 2, 3];

    let second = v2[1]; // doesn't move

[tight galleon]

String isn't Copy, so the first example attempts to move the values, but i32 is Copy, so the second example just copies the values instead of moving them.

[steel saddle]

but if I replace the second with this:

    let v2 = vec!["1", "2", "3"];

    let second = v2[1]; // doesn't move

it still doesn't move it

oh it's because it's not a string it's a type of &str

[tight galleon]

Yep, immutable references like &str are Copy

[steel saddle]

Interesting