Method empty

3rd/json/include/nlohmann/json.hpp:8726–8729

! @brief return whether pointer points to the root document @return true iff the JSON pointer points to the root document @complexity Constant. @exceptionsafety No-throw guarantee: this function never throws exceptions. @liveexample{The example shows the result of `empty` for different JSON Pointers.,json_pointer__empty} @since version 3.6.0 */

    @since version 3.6.0
    */
    bool empty() const noexcept
    {
        return reference_tokens.empty();
    }

  private:
    /*!