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<title>trie::const_node_iterator
Interface</title>
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<h1><tt><span class=
"c2"><tt>trie</tt></span>::const_node_iterator</tt>
Interface</h1>
<p>Const node iterator.</p>
<p>This is an "iterator to an iterator" - it iterates over
nodes, and de-referencing it returns one of the tree's const
iterators</p>
<h2><a name="link1" id="link1">Public Types and
Constants</a></h2>
<h3><a name="link2" id="link2">General Container
Definitions</a></h3>
<table class="c1" width="100%" border="1" summary="Types">
<tr>
<td width="30%" align="left"><b>Type</b></td>
<td width="55%" align="left"><b>Definition</b></td>
<td width="15%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<a name="size_type55424436" id="size_type55424436">size_type</a>
</pre>
</td>
<td>
<pre>
<a href="container_base.html#size_type55424436"><span class=
"c2"><tt>container_base</tt></span>::size_type</a>
</pre>
</td>
<td>
<p>Size type.</p>
</td>
</tr>
</table>
<h3><a name="link3" id="link3">Iterator Definitions</a></h3>
<table class="c1" width="100%" border="1" summary="Types">
<tr>
<td width="30%" align="left"><b>Type</b></td>
<td width="55%" align="left"><b>Definition</b></td>
<td width="15%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<a name="iterator_category2821876439" id=
"iterator_category2821876439">iterator_category</a>
</pre>
</td>
<td>
<pre>
trivial_iterator_tag
</pre>
</td>
<td>
<p>Category.</p>
<p>This tag identifies that the iterator has none of the
STL's iterators' movement abilities.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="difference_type868028452" id=
"difference_type868028452">difference_type</a>
</pre>
</td>
<td>
<pre class="c2">
void
</pre>
</td>
<td>
<p>Difference type.</p>
</td>
</tr>
</table>
<h3><a name="link4" id="link4">Value-Type Definitions</a></h3>
<table class="c1" width="100%" border="1" summary="Types">
<tr>
<td width="30%" align="left"><b>Type</b></td>
<td width="55%" align="left"><b>Definition</b></td>
<td width="15%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<a name="value_type279018186" id=
"value_type279018186">value_type</a>
</pre>
</td>
<td>
<pre>
<a href=
"container_base.html#const_iterator98626788"><span class="c2"><tt>container_base</tt></span>::const_iterator</a>
</pre>
</td>
<td>
<p>Iterator's value type.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="reference54418471" id="reference54418471">reference</a>
</pre>
</td>
<td>
<pre>
<a href="#value_type279018186"><tt>value_type</tt></a>
</pre>
</td>
<td>
<p>Iterator's reference type.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="const_reference495461441" id=
"const_reference495461441">const_reference</a>
</pre>
</td>
<td>
<pre>
<a href="#value_type279018186"><tt>value_type</tt></a>
</pre>
</td>
<td>
<p>Iterator's const <a href=
"#reference54418471"><tt>reference</tt></a> type.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="e_access_traits1948190928" id=
"e_access_traits1948190928">e_access_traits</a>
</pre>
</td>
<td>
<pre>
<a href=
"trie.html#e_access_traits1948190928"><span class="c2"><tt>trie</tt></span>::e_access_traits</a>
</pre>
</td>
<td>
<p>Element access traits.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="const_e_iterator2450008044" id=
"const_e_iterator2450008044">const_e_iterator</a>
</pre>
</td>
<td>
<pre>
<b>typename</b> <a href=
"#e_access_traits1948190928"><tt>e_access_traits</tt></a>::const_iterator
</pre>
</td>
<td>
<p>A key's element const iterator.</p>
</td>
</tr>
</table>
<h3><a name="link5" id="link5">Metadata Definitions</a></h3>
<p>These are only defined if <a href=
"basic_tree.html#Node_Update841554648"><span class="c2">
<tt>basic_tree</tt></span>::Node_Update</a>
is not <a href="null_trie_node_update.html"><span class=
"c2"><tt>null_trie_node_update</tt></span></a></p>
<table class="c1" width="100%" border="1" summary="Types">
<tr>
<td width="30%" align="left"><b>Type</b></td>
<td width="55%" align="left"><b>Definition</b></td>
<td width="15%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<a name="metadata_type2849297114" id=
"metadata_type2849297114">metadata_type</a>
</pre>
</td>
<td>
<pre>
<tt><b>typename</b></tt> <a href=
"basic_tree.html#Node_Update841554648"><span class="c2"><tt>basic_tree</tt></span>::Node_Update</a><tt>::metadata_type</tt>
</pre>
</td>
<td>
<p>Metadata type.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="const_metadata_reference1108857465" id=
"const_metadata_reference1108857465">const_metadata_reference</a>
</pre>
</td>
<td>
<pre>
<b>typename</b> Allocator::<b>template</b> rebind&lt;
<a href=
"#metadata_type2849297114"><tt>metadata_type</tt></a>&gt;::other::<a href="#const_reference495461441"><tt>const_reference</tt></a>
</pre>
</td>
<td>
<p>Const metadata <a href=
"#reference54418471"><tt>reference</tt></a> type.</p>
</td>
</tr>
</table>
<h2><a name="link6" id="link6">Public Methods</a></h2>
<h3><a name="link7" id="link7">Constructors, Destructor, and
Related</a></h3>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b>
const_node_iterator
()
</pre>
</td>
<td>
<p>Default constructor.</p>
</td>
</tr>
</table>
<h3><a name="link8" id="link8">Access Methods</a></h3>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> std::pair&lt;
<a href=
"#const_e_iterator2450008044"><tt>const_e_iterator</tt></a>,
<a href=
"#const_e_iterator2450008044"><tt>const_e_iterator</tt></a>&gt;
valid_prefix
() <b>const</b>
</pre>
</td>
<td>
<p>Subtree valid prefix.</p>
<p>Returns the common prefix range of all nodes in this
node's subtree.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <a href=
"#const_reference495461441"><tt>const_reference</tt></a>
<b>operator</b>*
() <b>const</b>
</pre>
</td>
<td>
<p>Const access; returns the const iterator associated
with the current leaf.</p>
<p>Should be called only for leaf nodes.</p>
</td>
</tr>
</table>
<h3><a name="link9" id="link9">Metadata Access Methods</a></h3>
<p>These are only defined if <a href=
"basic_tree.html#Node_Update841554648"><span class="c2">
<tt>basic_tree</tt></span>::Node_Update</a>
is not <a href="null_trie_node_update.html"><span class=
"c2"><tt>null_trie_node_update</tt></span></a></p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <a href=
"#const_metadata_reference1108857465"><tt>const_metadata_reference</tt></a>
get_metadata
() <b>const</b>
</pre>
</td>
<td>
<p>Metadata access.</p>
</td>
</tr>
</table>
<h3><a name="link10" id="link10">Movement Methods</a></h3>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <a href="#size_type55424436"><tt>size_type</tt></a>
num_children
() <b>const</b>
</pre>
</td>
<td>
<p>Returns the number of children in the corresponding
node.</p>
<p>If the number of children is 0, then the corresponding
node is a leaf; otherwise, it is not a leaf.</p>
</td>
</tr>
<tr>
<td>
<pre>
<span class="c2"><tt>const_node_iterator</tt></span>
get_child
(<a href=
"#size_type55424436"><tt>size_type</tt></a> i) <b>const</b>
</pre>
</td>
<td>
<p>Returns a const node iterator to the corresponding
node's <span class="c1"><tt>i</tt></span>-th child.</p>
</td>
</tr>
</table>
<h3><a name="link11" id="link11">Comparison Methods</a></h3>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>bool</b>
<b>operator</b>==
(<b>const</b> <span class=
"c2"><tt>const_node_iterator</tt></span> &amp;other) <b>const</b>
</pre>
</td>
<td>
<p>Compares content to a different iterator object.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>bool</b>
<b>operator</b>!=
(<b>const</b> <span class=
"c2"><tt>const_node_iterator</tt></span> &amp;other) <b>const</b>
</pre>
</td>
<td>
<p>Compares content (negatively) to a different iterator
object.</p>
</td>
</tr>
</table>
</div>
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</html>