b = close(dictionary_name ‖ file_handler);
The
close function closes a file, whether opened as a dictionary or via a
File statement. The function closes either a dictionary named
dictionary_name or a text file associated with
file_handler.
If closing a dictionary, the dictionary will be set to a
None data source and will remain set to that source until the previous file is reopened using the
open function or if a new file is associated with the dictionary using the
setfile function.
The function returns a logical value of 1 (true) if successful and 0 (false) otherwise.