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17<div class="section" id="limit-unrolling">
18<h1><a class="toc-backref" href="./configuration.html#id526" name="limit-unrolling">BOOST_MPL_LIMIT_UNROLLING</a></h1>
19<div class="section" id="id311">
20<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
21<pre class="literal-block">
22#if !defined(<a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a>)
23#   define <a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a> \
24        <em>implementation-defined integral constant</em> \
25/**/
26#endif
27</pre>
28</div>
29<div class="section" id="id312">
30<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
31<p><tt class="literal"><span class="pre"><a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a></span></tt> is an overridable configuration macro regulating
32the unrolling depth of the library's iteration algorithms. In this implementation
33of the library, <tt class="literal"><span class="pre"><a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a></span></tt> has a default value of 4. To
34override the default, define <tt class="literal"><span class="pre"><a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a></span></tt> to the desired
35value before including any library header.
36[<em>Note:</em> Overriding will take effect
37<em>only</em> if the library is configured not to use <a class="reference" href="./cfg-no-preprocessed.html">preprocessed headers</a>. See
38<a class="refentry reference" href="./cfg-no-preprocessed.html"><tt class="refentry literal"><span class="pre">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</span></tt></a> for more information. — <em>end note</em>]</p>
39</div>
40<div class="section" id="id313">
41<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
42<p>Except for overall library performace, overriding the
43<tt class="literal"><span class="pre"><a href="./limit-unrolling.html" class="identifier">BOOST_MPL_LIMIT_UNROLLING</a></span></tt>'s default value has no user-observable effects.</p>
44</div>
45<div class="section" id="id314">
46<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
47<p><a class="reference" href="./configuration.html">Configuration</a>, <a class="refentry reference" href="./cfg-no-preprocessed.html"><tt class="refentry literal"><span class="pre">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</span></tt></a></p>
48<!-- modtime: November 10, 2004 04:38:24 +0000 -->
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