car
, cdr
, cons
: Fundamental FunctionsIn Lisp, car
, cdr
, and cons
are fundamental
functions. The cons
function is used to construct lists, and
the car
and cdr
functions are used to take them apart.
In the walk through of the copy-region-as-kill
function, we
will see cons
as well as two variants on cdr
,
namely, setcdr
and nthcdr
. (See copy-region-as-kill
.)