Function cend

src/fl/stl/unordered_map.h:304–306

    const_iterator end() const { return const_iterator(this, _buckets.size()); }
    const_iterator cbegin() const { return const_iterator(this, 0); }
    const_iterator cend() const {
        return const_iterator(this, _buckets.size());
    }

    static bool NeedsRehash(fl::size size, fl::size bucket_size, fl::size tombstones,
                            u8 load_factor) {