Function: hif-undefine-symbol
hif-undefine-symbol is a byte-compiled function defined in
hideif.el.gz.
Signature
(hif-undefine-symbol VAR)
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/hideif.el.gz
(defun hif-undefine-symbol (var)
(when (assq var hide-ifdef-env)
(setq hide-ifdef-env
(delete (assq var hide-ifdef-env) hide-ifdef-env))
;; We can override things in `hif-predefine-alist' so keep them
(unless (assq var hif-predefine-alist)
(unintern (symbol-name var) nil))
t))