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48 lines
4.4 KiB
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<title>The MPL Reference Manual: Iteration Algorithms</title>
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<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./inserters-inserter.html" class="navigation-link">Prev</a> <a href="./fold.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./inserters.html" class="navigation-link">Back</a> <a href="./querying-algorithms.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./algorithms.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
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<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./algorithms.html" class="navigation-link">Algorithms</a> / <a href="./iteration-algorithms.html" class="navigation-link">Iteration Algorithms</a></td>
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<div class="section" id="iteration-algorithms">
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<h1><a class="toc-backref" href="./algorithms.html#id396" name="iteration-algorithms">Iteration Algorithms</a></h1>
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<a class="target" id="id90" name="id90"></a><p>Iteration algorithms are the basic building blocks behind many of the
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MPL's algorithms, and are usually the first place to look at when
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starting to build a new one. Abstracting away the details of sequence
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iteration and employing various optimizations such as recursion
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unrolling, they provide significant advantages over a hand-coded
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approach.</p>
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<!-- Of all of iteration algorithms, ``iter_fold_if`` is the
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most complex and at the same time the most fundamental. The rest of
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the algorithms from the category |- -| ``iter_fold``, ``reverse_iter_fold``,
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``fold``, and ``reverse_fold`` |- -| simply provide a more high-level
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(and more restricted) interface to the core ``iter_fold_if``
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functionality [#performace]_.
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.. [#performace] That's not to say that they are *implemented*
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through ``iter_fold_if`` |- -| they are often not, in particular
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because the restricted functionality allows for more
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optimizations. -->
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<!-- modtime: November 08, 2004 10:55:02 +0000 -->
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<!-- Algorithms/Iteration Algorithms//fold -->
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<ul class="toc simple" id="outline">
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<li><a class="reference" href="./fold.html" id="id397" name="id397">fold</a></li>
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<li><a class="reference" href="./iter-fold.html" id="id398" name="id398">iter_fold</a></li>
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<li><a class="reference" href="./reverse-fold.html" id="id399" name="id399">reverse_fold</a></li>
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<li><a class="reference" href="./reverse-iter-fold.html" id="id400" name="id400">reverse_iter_fold</a></li>
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<li><a class="reference" href="./accumulate.html" id="id401" name="id401">accumulate</a></li>
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