* @exception E_SUCCESS The method is successful.
* @exception E_OUT_OF_MEMORY The memory is insufficient.
* @exception E_INVALID_ARG The value of the specified @c nth is out of the valid range. @n
* @exception E_SUCCESS The method is successful.
* @exception E_OUT_OF_MEMORY The memory is insufficient.
* @exception E_INVALID_ARG The value of the specified @c nth is out of the valid range. @n