Method swap

include/util/packed_vector.hpp:517–521

                                                         const PackedVector &vec);

    inline void swap(PackedVector &other) noexcept
    {
        std::swap(vec, other.vec);
        std::swap(num_elements, other.num_elements);
    }

  private:
    void allocate_blocks(std::size_t num_blocks)