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+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="generator" content="Docutils 0.11: http://docutils.sourceforge.net/" />
+<title>Iterator Traits</title>
+<meta name="author" content="David Abrahams" />
+<meta name="organization" content="Boost Consulting" />
+<meta name="date" content="$Date$" />
+<meta name="copyright" content="Copyright David Abrahams 2004." />
+<link rel="stylesheet" href="../../../rst.css" type="text/css" />
+</head>
+<body>
+<div class="document" id="iterator-traits">
+<h1 class="title">Iterator Traits</h1>
+<table class="docinfo" frame="void" rules="none">
+<col class="docinfo-name" />
+<col class="docinfo-content" />
+<tbody valign="top">
+<tr><th class="docinfo-name">Author:</th>
+<td>David Abrahams</td></tr>
+<tr><th class="docinfo-name">Contact:</th>
+<td><a class="first last reference external" href="mailto:dave@boost-consulting.com">dave@boost-consulting.com</a></td></tr>
+<tr><th class="docinfo-name">Organization:</th>
+<td><a class="first last reference external" href="http://www.boost-consulting.com">Boost Consulting</a></td></tr>
+<tr><th class="docinfo-name">Date:</th>
+<td>$Date$</td></tr>
+<tr><th class="docinfo-name">Copyright:</th>
+<td>Copyright David Abrahams 2004.</td></tr>
+</tbody>
+</table>
+<!-- Distributed under the Boost -->
+<!-- Software License, Version 1.0. (See accompanying -->
+<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field"><th class="field-name">abstract:</th><td class="field-body">Header <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt> provides
+the ability to access an iterator's associated types using
+MPL-compatible <a class="reference external" href="../../mpl/doc/index.html#metafunctions">metafunctions</a>.</td>
+</tr>
+</tbody>
+</table>
+<div class="section" id="overview">
+<h1>Overview</h1>
+<p><tt class="docutils literal"><span class="pre">std::iterator_traits</span></tt> provides access to five associated types
+of any iterator: its <tt class="docutils literal">value_type</tt>, <tt class="docutils literal">reference</tt>, <tt class="docutils literal">pointer</tt>,
+<tt class="docutils literal">iterator_category</tt>, and <tt class="docutils literal">difference_type</tt>. Unfortunately,
+such a "multi-valued" traits template can be difficult to use in a
+metaprogramming context. <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt>
+provides access to these types using a standard <a class="reference external" href="../../mpl/doc/index.html#metafunctions">metafunctions</a>.</p>
+</div>
+<div class="section" id="summary">
+<h1>Summary</h1>
+<p>Header <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt>:</p>
+<pre class="literal-block">
+template <class Iterator>
+struct iterator_value
+{
+ typedef typename
+ std::iterator_traits<Iterator>::value_type
+ type;
+};
+
+template <class Iterator>
+struct iterator_reference
+{
+ typedef typename
+ std::iterator_traits<Iterator>::reference
+ type;
+};
+
+
+template <class Iterator>
+struct iterator_pointer
+{
+ typedef typename
+ std::iterator_traits<Iterator>::pointer
+ type;
+};
+
+template <class Iterator>
+struct iterator_difference
+{
+ typedef typename
+ detail::iterator_traits<Iterator>::difference_type
+ type;
+};
+
+template <class Iterator>
+struct iterator_category
+{
+ typedef typename
+ detail::iterator_traits<Iterator>::iterator_category
+ type;
+};
+</pre>
+</div>
+</div>
+<div class="footer">
+<hr class="footer" />
+<a class="reference external" href="iterator_traits.rst">View document source</a>.
+Generated by <a class="reference external" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source.
+
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