Function malachite_base::vecs::exhaustive::exhaustive_vecs

pub fn exhaustive_vecs<I: Clone + Iterator>(
    xs: I,
) -> ExhaustiveVecs<I::Item, PrimitiveIntIncreasingRange<u64>, I> 
where
    I::Item: Clone,

Generates all Vecs with elements from a specified iterator.

If xs is empty, the output length is 1; otherwise, the output is infinite.

The lengths of the output Vecs grow logarithmically.

Examples

use itertools::Itertools;
use malachite_base::num::exhaustive::exhaustive_unsigneds;
use malachite_base::vecs::exhaustive::exhaustive_vecs;

let xss = exhaustive_vecs(exhaustive_unsigneds::<u32>())
    .take(20)
    .collect_vec();
assert_eq!(
    xss.iter().map(Vec::as_slice).collect_vec().as_slice(),
    &[
        &[][..],
        &[0],
        &[1],
        &[0, 0, 0],
        &[2],
        &[0, 0],
        &[3],
        &[0, 0, 0, 0],
        &[4],
        &[0, 1],
        &[5],
        &[0, 0, 1],
        &[6],
        &[1, 0],
        &[7],
        &[0, 0, 0, 0, 0],
        &[8],
        &[1, 1],
        &[9],
        &[0, 1, 0]
    ]
);