Programming-Idioms

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2021-02-24, 13:29:34

2021-04-06, 12:23:56

Idiom #42 Continue outer loop

Print each item v of list a which in not contained in list b.
For this, write an outer loop to iterate on a and an inner loop to iterate on b.

Print each item v of list a which in not contained in list b.
For this, write an outer loop to iterate on a and an inner loop to iterate on b.

v,a,b

v,a,b

'outer: for va in &a {
    for vb in &b {
        if va == vb {
            continue 'outer;
        }
    }
    println!("{}", va);
}

'outer: for va in &a {
    for vb in &b {
        if va == vb {
            continue 'outer;
        }
    }
    println!("{}", va);
}

'outer is a label used to refer to the outer loop. Labels in Rust start with a '.

'outer is a label used to refer to the outer loop. Labels in Rust start with a '.

https://doc.rust-lang.org/reference/expressions/loop-expr.html#continue-expressions

https://play.rust-lang.org/?gist=f02f06e7c244558e542d&version=stable

https://play.rust-lang.org/?gist=f02f06e7c244558e542d&version=stable

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