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ListNode.h.html
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="GENERATOR" content="GNU source-highlight 3.1.6
by Lorenzo Bettini
http://www.lorenzobettini.it
http://www.gnu.org/software/src-highlite">
<title>ListNode.h</title>
</head>
<body bgcolor="white">
<pre><tt><i><font color="#9A1900">/*</font></i>
<i><font color="#9A1900"> * Filename: ListNode.h</font></i>
<i><font color="#9A1900"> * Description: ListNode class definition</font></i>
<i><font color="#9A1900"> */</font></i>
<b><font color="#000080">#ifndef</font></b> LISTNODE_H
<b><font color="#000080">#define</font></b> LISTNODE_H
<b><font color="#000080">#include</font></b> <font color="#FF0000"><iostream></font>
<i><font color="#9A1900">// next line needed because NULL is part of std namespace</font></i>
<b><font color="#0000FF">using</font></b> <b><font color="#0000FF">namespace</font></b> std<font color="#990000">;</font>
<b><font color="#0000FF">class</font></b> <font color="#008080">ListNode</font> <font color="#FF0000">{</font>
<b><font color="#0000FF">public</font></b><font color="#990000">:</font>
<b><font color="#000000">ListNode</font></b><font color="#990000">();</font> <i><font color="#9A1900">// Constructor</font></i>
<b><font color="#0000FF">private</font></b><font color="#990000">:</font>
<font color="#009900">int</font> value<font color="#990000">;</font>
<font color="#008080">ListNode</font> <font color="#990000">*</font>next<font color="#990000">,</font> <font color="#990000">*</font>previous<font color="#990000">;</font> <i><font color="#9A1900">// for doubly linked lists</font></i>
<i><font color="#9A1900">// List needs to be able to access/change ListNode's next and</font></i>
<i><font color="#9A1900">// previous pointers</font></i>
<b><font color="#0000FF">friend</font></b> <b><font color="#0000FF">class</font></b> <font color="#008080">List</font><font color="#990000">;</font>
<i><font color="#9A1900">// ListItr needs to access/change ListNode as well</font></i>
<b><font color="#0000FF">friend</font></b> <b><font color="#0000FF">class</font></b> <font color="#008080">ListItr</font><font color="#990000">;</font>
<i><font color="#9A1900">// Not writing a destructor is fine in this case since there is no</font></i>
<i><font color="#9A1900">// dynamically allocated memory in this class. No constructor is</font></i>
<i><font color="#9A1900">// necessary, as an object will be set up by the List class.</font></i>
<font color="#FF0000">}</font><font color="#990000">;</font>
<b><font color="#000080">#endif</font></b>
</tt></pre>
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