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Index
listp Conses Dictionary push
Function

make-list

make-list size &key initial-element ⇒ list

Arguments and Values

sizea non-negative integer.
initial-elementan object. The default is nil.
lista list.

Description

Returns a list of length given by size, each of the elements of which is initial-element.

Examples

 (make-list 5) ⇒  (NIL NIL NIL NIL NIL)
 (make-list 3 :initial-element 'rah) ⇒  (RAH RAH RAH)
 (make-list 2 :initial-element '(1 2 3)) ⇒  ((1 2 3) (1 2 3))
 (make-list 0) ⇒  NIL ;i.e., ()
 (make-list 0 :initial-element 'new-element) ⇒  NIL

Exceptional Situations

Should signal an error of type type-error if size is not a non-negative integer.

See Also

cons, list

Backlinks

Conses as Lists, Conses Dictionary, function, make-sequence, Sequence Concepts, Symbols in the COMMON-LISP Package