copy-list
list => copy
list---a proper list or a dotted list.
copy---a list.
Returns a copy of list. If list is a dotted list, the resulting list will also be a dotted list.
Only the list structure of list is copied; the elements of the resulting list are the same as the corresponding elements of the given list.
(setq lst (list 1 (list 2 3))) => (1 (2 3)) (setq slst lst) => (1 (2 3)) (setq clst (copy-list lst)) => (1 (2 3)) (eq slst lst) => true (eq clst lst) => false (equal clst lst) => true (rplaca lst "one") => ("one" (2 3)) slst => ("one" (2 3)) clst => (1 (2 3)) (setf (caadr lst) "two") => "two" lst => ("one" ("two" 3)) slst => ("one" ("two" 3)) clst => (1 ("two" 3))
The consequences are undefined if list is a circular list.
section copy-alist [Function] , section copy-seq [Function] , section copy-tree [Function]
The copy created is equal to list, but not eq.
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