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| 12 | <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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| 14 | <div class="section" id="iteration-algorithms"> |
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| 15 | <h1><a class="toc-backref" href="./algorithms.html#id396" name="iteration-algorithms">Iteration Algorithms</a></h1> |
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| 16 | <a class="target" id="id90" name="id90"></a><p>Iteration algorithms are the basic building blocks behind many of the |
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| 17 | MPL's algorithms, and are usually the first place to look at when |
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| 18 | starting to build a new one. Abstracting away the details of sequence |
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| 19 | iteration and employing various optimizations such as recursion |
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| 20 | unrolling, they provide significant advantages over a hand-coded |
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| 21 | approach.</p> |
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| 22 | <!-- Of all of iteration algorithms, ``iter_fold_if`` is the |
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| 23 | most complex and at the same time the most fundamental. The rest of |
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| 24 | the algorithms from the category |- -| ``iter_fold``, ``reverse_iter_fold``, |
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| 25 | ``fold``, and ``reverse_fold`` |- -| simply provide a more high-level |
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| 26 | (and more restricted) interface to the core ``iter_fold_if`` |
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| 27 | functionality [#performace]_. |
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| 28 | |
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| 29 | .. [#performace] That's not to say that they are *implemented* |
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| 30 | through ``iter_fold_if`` |- -| they are often not, in particular |
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| 31 | because the restricted functionality allows for more |
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| 32 | optimizations. --> |
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| 33 | <!-- modtime: November 08, 2004 10:55:02 +0000 --> |
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| 34 | <!-- Algorithms/Iteration Algorithms//fold --> |
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| 35 | <ul class="toc simple" id="outline"> |
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| 36 | <li><a class="reference" href="./fold.html" id="id397" name="id397">fold</a></li> |
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| 37 | <li><a class="reference" href="./iter-fold.html" id="id398" name="id398">iter_fold</a></li> |
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| 38 | <li><a class="reference" href="./reverse-fold.html" id="id399" name="id399">reverse_fold</a></li> |
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| 39 | <li><a class="reference" href="./reverse-iter-fold.html" id="id400" name="id400">reverse_iter_fold</a></li> |
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| 40 | <li><a class="reference" href="./accumulate.html" id="id401" name="id401">accumulate</a></li> |
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