rest [Accessor]

rest list => tail

(setf ( rest list) new-tail)

Arguments and Values::

list---a list,

which might be a dotted list or a circular list.

tail---an object.

Description::

rest performs the same operation as cdr, but mnemonically complements first. Specifically,

 (rest list) == (cdr list)
 (setf (rest list) new-tail) == (setf (cdr list) new-tail)

Examples::

 (rest '(1 2)) =>  (2)
 (rest '(1 . 2)) =>  2
 (rest '(1)) =>  NIL
 (setq *cons* '(1 . 2)) =>  (1 . 2)
 (setf (rest *cons*) "two") =>  "two"
 *cons* =>  (1 . "two")

See Also::

cdr, section nthcdr [Function]

Notes::

rest is often preferred stylistically over cdr when the argument is to being subjectively viewed as a list rather than as a cons.

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