reverse

Usage

reverse l
reverse! l

Signature

reverse:

% $\to$ %

Parameter	Type	Description
l	%	a list

Returns

reverse(l) returns a copy of $l$ with the elements in reverse order, while reverse!(l) reverses $l$ without copying it.

Remarks

reverse! does not make a copy of $l$, which is therefore modified after the call. It is unsafe to use the variable $l$ after the call, unless it has been assigned to the result of the call, as in l := reverse! l.