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65 lines
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<title>The MPL Reference Manual: Intrinsic Metafunctions</title>
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<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./intrinsic-metafunctions.html" class="navigation-link">Intrinsic Metafunctions</a></td>
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<div class="section" id="intrinsic-metafunctions">
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<h1><a class="toc-backref" href="./sequences.html#id352" name="intrinsic-metafunctions">Intrinsic Metafunctions</a></h1>
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<a class="target" id="label-sequences-intrinsic" name="label-sequences-intrinsic"></a><p>The metafunctions that form the essential interface of sequence <a class="reference" href="./classes.html#label-sequences-classes">classes</a>
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documented in the corresponding <a class="reference" href="./concepts.html#label-sequences-concepts">sequence concepts</a> are known as
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<em>intrinsic sequence operations</em>. They differ from generic
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<a class="reference" href="./algorithms.html">sequence algorithms</a> in that, in general, they need to be implemented
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from scratch for each new sequence class <a class="footnote-reference" href="#intrinsic" id="id48" name="id48">[1]</a>.</p>
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<p>It's worth noting that STL counterparts of these metafunctions are
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usually implemented as member functions.</p>
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<table class="footnote" frame="void" id="intrinsic" rules="none">
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<colgroup><col class="label" /><col /></colgroup>
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<tr><td class="label"><a class="fn-backref" href="#id48" name="intrinsic">[1]</a></td><td>In practice, many of intrinsic metafunctions offer a
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default implementation that will work in majority of cases, given
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that you've implemented the core functionality they rely on (such
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as <a class="refentry reference" href="./begin.html"><tt class="refentry literal"><span class="pre">begin</span></tt></a> / <a class="refentry reference" href="./end.html"><tt class="refentry literal"><span class="pre">end</span></tt></a>).</td></tr>
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