Method empty

Source/Utils/json.hpp:11851–11854

! @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

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

    private:
        /*!