Common Lisp equivalent of Haskell's replicate?

Question

replicate is a function that takes an integer and a sequence and returns the sequence repeated n times.

E.g. replicate 3 ["a"] returns ["a", "a", "a"]

Does Common Lisp have an equivalent function, or do I have to write one?

score 7 · Answer 1 · edited Apr 01 '11 at 22:57

7

Use make-list

(make-list 3 :initial-element 'a)

It evaluates to

(A A A)

edited Apr 01 '11 at 22:57

Rainer Joswig

answered Apr 01 '11 at 19:21

augustss

score 5 · Accepted Answer · edited Apr 01 '11 at 19:29

5

(make-sequence 'list n :initial-element element)

edited Apr 01 '11 at 19:29

mcandre

answered Apr 01 '11 at 19:25

wnoise

Thanks! I know a lot of these helpful functions exist, just not their names. – mcandre Apr 01 '11 at 19:30

2 Answers2