boost/libs/mpl/doc/refmanual/iterators-concepts.html

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  17 <div class="section" id="iterators-concepts">
  18 <h1><a class="toc-backref" href="./iterators.html#id377" name="iterators-concepts">Concepts</a></h1>
  19 <a class="target" id="label-iterators-concepts" name="label-iterators-concepts"></a><p>All iterators in MPL are classified into three iterator concepts, or
  20 <cite>categories</cite>, named according to the type of traversal provided. The
  21 categories are: <a class="reference" href="./forward-iterator.html">Forward Iterator</a>, <a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a>, and
  22 <a class="reference" href="./random-access-iterator.html">Random Access Iterator</a>. The concepts are hierarchical:
  23 <a class="reference" href="./random-access-iterator.html">Random Access Iterator</a> is a refinement of <a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a>,
  24 which, in its turn, is a refinement of <a class="reference" href="./forward-iterator.html">Forward Iterator</a>.</p>
  25 <p>Because of the inherently immutable nature of the value access, MPL
  26 iterators escape the problems of the traversal-only categorization
  27 discussed at length in <a class="citation-reference" href="#n1550" id="id76" name="id76">[n1550]</a>.</p>
  28 <table class="citation" frame="void" id="n1550" rules="none">
  29 <colgroup><col class="label" /><col /></colgroup>
  30 <tbody valign="top">
  31 <tr><td class="label"><a class="fn-backref" href="#id76" name="n1550">[n1550]</a></td><td><a class="reference" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2003/n1550.htm" target="_top">http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2003/n1550.htm</a></td></tr>
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  34 <!-- modtime: November 11, 2004 10:12:50 +0000 -->
  35 <!-- Iterators/Concepts//Forward Iterator |10 -->
  36 <ul class="toc simple" id="outline">
  37 <li><a class="reference" href="./forward-iterator.html" id="id378" name="id378">Forward Iterator</a></li>
  38 <li><a class="reference" href="./bidirectional-iterator.html" id="id379" name="id379">Bidirectional Iterator</a></li>
  39 <li><a class="reference" href="./random-access-iterator.html" id="id380" name="id380">Random Access Iterator</a></li>
  40 </ul>
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