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ANSI Common Lisp  10 Symbols 10.2 Dictionary of Symbols
| 10.2.18 makunbound |
Function |
- Syntax:
-
makunbound
symbol
 symbol
- Arguments and Values:
-
symbol - a symbol
- Description:
-
Makes the symbol be unbound,
regardless of whether it was previously bound.
- Examples:
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(setf (symbol-value 'a) 1)
(boundp 'a) true
a 1
(makunbound 'a) A
(boundp 'a) false
- Side Effects:
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The value cell of symbol is modified.
- Exceptional Situations:
-
Should signal an error of type type-error if symbol is not a symbol.
- See Also:
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boundp, fmakunbound
- Allegro CL Implementation Details:
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None.
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