intn Hexist(int32 h_id, uint16 search_tag, uint16 search_ref)
h_id
IN:
Access identifier returned by Hstartread, Hstartwrite, or Hnextread
search_tag
Tag of the object to be searched for
search_ref
Reference number of the object to be searched for
Purpose
Locates an object in an HDF file.
Return value
Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
Description
Simple interface to Hfind that determines if a given tag/reference number pair exists in a file. Wildcards apply.
Hfind performs all validity checking; this is just a very simple wrapper around it.