Syntax:
copy-list list => copy
Arguments and Values:
list---a proper list or a dotted list.
copy---a list.
Description:
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.
Examples:
(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))
Side Effects: None.
Affected By: None.
Exceptional Situations:
The consequences are undefined if list is a circular list.
See Also:
copy-alist, copy-seq, copy-tree
Notes:
The copy created is equal to list, but not eq.
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