I need to write a DoubleLinkedList, checking for LinkedList I saw
add: link after: otherLink
"Add otherLink after link in the list. Answer aLink."
| savedLink |
lastLink == otherLink ifTrue: [^ self addLast: link].
savedLink := otherLink nextLink.
otherLink nextLink: link.
link nextLink: savedLink.
^link.
Why is savedLink needed ?
Why not:
lastLink == otherLink ifTrue: [^ self addLast: link].
link nextLink: otherLink nextLink.
otherLink nextLink: link.
^link.
Are there any hidden reason I don't see?
--
http://blog.ofset.org/hilaire
_______________________________________________
Pharo-project mailing list
[email protected]
http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
