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17<div class="section" id="iterator-protocol">
18<h1><a class="toc-backref" href="./changes-in-boost-1-32-0.html#id65" name="iterator-protocol">Iterator Protocol</a></h1>
19<p>The library no longer guarantees or relies on the direct presence
20of <tt class="literal"><span class="pre">advance</span></tt> / <tt class="literal"><span class="pre">distance</span></tt> / <tt class="literal"><span class="pre">next</span></tt> / <tt class="literal"><span class="pre">prior</span></tt> / <tt class="literal"><span class="pre">type</span></tt>
21members in iterator types; the following table summarises the new
22requirements:</p>
23<table border="1" class="table">
24<colgroup>
25<col width="50%" />
26<col width="50%" />
27</colgroup>
28<thead valign="bottom">
29<tr><th>Before</th>
30<th>Now</th>
31</tr>
32</thead>
33<tbody valign="top">
34<tr><td><tt class="literal"><span class="pre">i::type</span></tt></td>
35<td><tt class="literal"><span class="pre">deref&lt;i&gt;::type</span></tt></td>
36</tr>
37<tr><td><tt class="literal"><span class="pre">i::next</span></tt></td>
38<td><tt class="literal"><span class="pre">next&lt;i&gt;::type</span></tt></td>
39</tr>
40<tr><td><tt class="literal"><span class="pre">i::prior</span></tt></td>
41<td><tt class="literal"><span class="pre">prior&lt;i&gt;::type</span></tt></td>
42</tr>
43<tr><td><tt class="literal"><span class="pre">i::advance&lt;n&gt;::type</span></tt></td>
44<td><tt class="literal"><span class="pre">advance&lt;i,n&gt;::type</span></tt></td>
45</tr>
46<tr><td><tt class="literal"><span class="pre">i::distance&lt;j&gt;::type</span></tt></td>
47<td><tt class="literal"><span class="pre">distance&lt;i,j&gt;::type</span></tt></td>
48</tr>
49<tr><td><tt class="literal"><span class="pre">i::category</span></tt></td>
50<td><tt class="literal"><span class="pre">i::category</span></tt></td>
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