Doubly-linked list/Element definition: Difference between revisions
PascalABC.NET
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(PascalABC.NET) |
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data: data_ptr;
end;</syntaxhighlight>
=={{header|PascalABC.NET}}==
<syntaxhighlight lang="delphi">
type Node<T> = auto class
data: T;
prev,next: Node<T>;
end;
</syntaxhighlight>
=={{header|Perl}}==
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{{libheader|Wren-llist}}
The DNode class in the above module is the element type for the DLinkedList class which is a generic doubly-linked list. The latter is implemented in such a way that the user does not need to deal directly with DNode though for the purposes of the task we show below how instances of it can be created and manipulated.
<syntaxhighlight lang="
var dn1 = DNode.new(1)
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