ucnumber_lookup
(void) ucnumber_lookup(code, &num);
if (ucnumber_lookup(0x30, &num)) {
if (ucnumber_lookup(0xbc, &num)) {
if (ucnumber_lookup(0xff19, &num)) {
if (ucnumber_lookup(0x4e00, &num)) {
ucnumber_lookup (krb5_ui_4 code, struct ucnumber *num);