Component manipulation

CAT_TIDNT (CI, GNAME; GI; STATUS)

 
Get an identifier for a named pre-existing component.

CAT_TNDNT (CI, IDTYP, N; GI; STATUS)

 
Get an identifier for the $n$th (pre-existing) component of a given type. Note that if component $n$ could not be found then the routine returns an ok status, but GI is set to null identifier CAT__NOID.

CAT_TIDPR (GI; CI; STATUS)

 
Determine the parent of a component.