{
{  The purpose of this request is to get the file identifier associated with
{        the specified file.
{
{
{        CYP$GET_FILE_IDENTIFIER (FILE, FILE_IDENTIFIER, STATUS)
{
{
{  FILE: (input) This parameter specifies the file whose file identifier is
{        to be returned.
{
{  FILE_IDENTIFIER: (output) This parameter specifies the identifier
{        associated with the specified file.
{
{  STATUS: (output) This parameter specifies the request status.
{        CONDITIONS:
{              cye$file_not_open
{
