Function
cons
cons object-1 object-2 ⇒ cons
Description
Creates a fresh cons, the car of which is object-1
and the cdr of which is object-2.
Examples
(cons 1 2) ⇒ (1 . 2)
(cons 1 nil) ⇒ (1)
(cons nil 2) ⇒ (NIL . 2)
(cons nil nil) ⇒ (NIL)
(cons 1 (cons 2 (cons 3 (cons 4 nil)))) ⇒ (1 2 3 4)
(cons 'a 'b) ⇒ (A . B)
(cons 'a (cons 'b (cons 'c '()))) ⇒ (A B C)
(cons 'a '(b c d)) ⇒ (A B C D)
Notes
If object-2 is a list, cons can be thought of as
producing a new list which is like it but has object-1 prepended.
Backlinks
adjoin,
Cons Concepts,
cons,
Conses Dictionary,
consp,
Definition of Similarity,
Integrating Types and Classes,
list, list*,
list,
make-list,
Modification of Literal Objects,
Symbols in the COMMON-LISP Package,
Type Relationships,
Type Specifiers