Function permutations_generic

pub fn permutations_generic<'a, T: Copy + Debug>(
    s1: &'a [T],
    s2: &'a [T],
    pairs: usize,
) -> PermutationIter<'a, T> 

Available on crate feature regression only.

The returned iterator is a bit funky. It returns a buffer, which at all costs should be reused. This could either be done using a while loop (e.g. while let Some(buf) = iter.next() { iter.give_buffer(buf) }) or any of the built-in methods. If you know the length at compile time, use PermutationIter::collect_len.