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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-6FED83FE-1360-5468-B938-0BDFF7D62C43" xml:lang="en"><title>Links</title><shortdesc>This document describes links in the context of a doubly linked

list.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>An element in a doubly linked list can be any kind of object. To allow

an object to become an element of a doubly linked list, the class of which

that object is an instance, must include a <i>link</i> as a component.</p>

<p>A link object has data members containing pointers which point forwards

to the next link object and backwards to the previous link object. A link

object also has function members to implement the behaviour expected of link

objects, for example, connecting itself to another link object.</p>

<p>A link is an instance of the <codeph>TDblQueLink</codeph> class.</p>

</conbody></concept>