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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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<h2><font color="#009999">26.2 The Pattern Concept (cont.)</font></h2>
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<ul>
	<li>Names are simply examples</li>
	<li>Consider the linked list iterators:
	<br><br>
		<table border='1' cellpadding='4'>
			<tr bgcolor="#00ffff">
				<th width='50%'>Name in Design Pattern</th>
				<th width="50%">Actual Name (List Iterators)</th>
			</tr>
			<tr>
				<td align='center'><tt>Aggregate</tt></td>
				<td align='center'><tt>list&lt;T&gt;</tt></td>
			</tr>
			<tr>
				<td align='center'><tt>Iterator</tt></td>
				<td align='center'><tt>list&lt;T&gt;::iterator</tt></td>
			</tr>
			<tr>
				<td align='center'><tt>create_iterator()</tt></td>
				<td align='center'><tt>begin(), end()</tt></td>
			</tr>
			<tr>
				<td align='center'><tt>next()</tt></td>
				<td align='center'><tt>++</tt> operator</td>
			</tr>
			<tr>
				<td align='center'><tt>is_done</tt></td>
				<td align='center'>Test against <tt>end()</tt></td>
			</tr>
			<tr>
				<td align='center'><tt>current_item()</tt></td>
				<td align='center'><tt>*</tt> operator</td>
			</tr>
		</table>
	</li>
</ul>

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