std-open-file-p | ![]() |
(std-open-file-p <file>)
Returns T if the file argument is not closed, or NIL if it is closed or an error if it's no file object.
(setq f (std-fopen (findfile "acad.rx") "r")) (std-open-file-p f) => T (std-fclose f) (std-open-file-p f) => T (std-open-file-p 'f) => nil (std-open-file-p nil) => nil
file: a lisp object of type FILE
T or nil
None
(std-require 'STDFILE)
Defined in STDFILE.