fmakunbound

fmakunbound Function

Syntax:

fmakunbound name → name

Pronunciation:

[ ef mak* n ba_und ] or [ ef m—ak* n ba_und ]

Arguments and Values:

name—a function name.

Description:

Removes the function or macro definition, if any, of name in the global environment.

Examples:

(defun add-some (x) (+ x 19)) → ADD-SOME 
(fboundp ’add-some) → true 
(flet ((add-some (x) (+ x 37))) 
  (fmakunbound ’add-some) 
  (add-some 1)) → 38 
(fboundp ’add-some) → false 

Exceptional Situations:

Should signal an error of type type-error if name is not a function name.

The consequences are undefined if name is a special operator .

See Also:

fboundp, makunbound

Data and Control

flet, labels, macrolet

Expanded Reference: fmakunbound

tip

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(fmakunbound )