Chapter 10.1 wrong version of listing-10-05

[eliozh]

Listing 10-5 in Chapter 10.1:

fn largest<T>(list: &[T]) -> &T {
    let mut largest = list[0];

    for item in list {
        if item > largest {
            largest = item;
        }
    }

    largest
}

fn main() {
    let number_list = vec![34, 50, 25, 100, 65];

    let result = largest(&number_list);
    println!("The largest number is {}", result);

    let char_list = vec!['y', 'm', 'a', 'q'];

    let result = largest(&char_list);
    println!("The largest char is {}", result);
}

Actual code in listing-10-05/src/main.rs

fn largest<T>(list: &[T]) -> &T {
    let mut largest = &list[0];

    for item in list {
        if item > largest {
            largest = item;
        }
    }

    largest
}

fn main() {
    let number_list = vec![34, 50, 25, 100, 65];

    let result = largest(&number_list);
    println!("The largest number is {}", result);

    let char_list = vec!['y', 'm', 'a', 'q'];

    let result = largest(&char_list);
    println!("The largest char is {}", result);
}

let mut largest = list[0]; was changed to let mut largest = &list[0]; by a4780b9 which was forgotten by 43565d3. But the rustbook is not changed.
This would fix #2453 . And there is no need to revert changes in #2460 .

[eliozh]

On I found the reason is that stable version is older than beta version and nightly version.

[steveklabnik]

Ah, then this will be fixed in time. Sorry about that!