Function itertools::unique_impl::count_new_keys
source · fn count_new_keys<I, K>(used: HashMap<K, ()>, iterable: I) -> usizewhere
I: IntoIterator<Item = K>,
K: Hash + Eq,
fn count_new_keys<I, K>(used: HashMap<K, ()>, iterable: I) -> usizewhere
I: IntoIterator<Item = K>,
K: Hash + Eq,