Function itertools::all

pub fn all<I, F>(iterable: I, f: F) -> boolwhere
    I: IntoIterator,
    F: FnMut(I::Item) -> bool,

Test whether the predicate holds for all elements in the iterable.

[IntoIterator] enabled version of [Iterator::all].

use itertools::all;

assert!(all(&[1, 2, 3], |elt| *elt > 0));