Function rehash_internal

src/fl/stl/unordered_map.h:984–1004

    }

    void rehash_internal(fl::size new_cap) {
        new_cap = next_power_of_two(new_cap);
        fl::vector_inlined<Entry, INLINED_COUNT> old(_buckets.get_resource());
        fl::bitset<1024> old_occupied = _occupied;

        _buckets.swap(old);
        _buckets.clear();
        _buckets.assign(new_cap, Entry{});

        _occupied.reset();
        _occupied.resize(new_cap);
        _deleted.reset();
        _deleted.resize(new_cap);

        _size = _tombstones = 0;

        for (fl::size i = 0; i < old.size(); i++) {
            if (old_occupied.test(i))
                insert(fl::move(old[i].key), fl::move(old[i].value));
        }
    }

    // Rehash the inline buckets without resizing
    FL_DISABLE_WARNING_PUSH