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<div class="section" id="boost-mpl-limit-set-size">
<h1><a class="toc-backref" href="./configuration.html#id1604">BOOST_MPL_LIMIT_SET_SIZE</a></h1>
<div class="section" id="id1367">
<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
<pre class="literal-block">
#if !defined(<a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a>)
#   define <a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a> \
        <em>implementation-defined integral constant</em> \
/**/
#endif
</pre>
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<div class="section" id="id1368">
<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
<p><tt class="literal"><span class="pre"><a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a></span></tt> is an overridable configuration macro regulating
the maximum arity of the <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt>'s and <tt class="literal"><span class="pre"><a href="./set-c.html" class="identifier">set_c</a></span></tt>'s <a class="reference internal" href="./variadic-sequence.html">variadic forms</a>. In this
implementation of the library, <tt class="literal"><span class="pre"><a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a></span></tt> has a default value
of 20. To override the default limit, define <tt class="literal"><span class="pre"><a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a></span></tt> to
the desired maximum arity rounded up to the nearest multiple of ten before
including any library header. [<em>Note:</em> Overriding will take effect
<em>only</em> if the library is configured not to use <a class="reference internal" href="./cfg-no-preprocessed-headers.html#boost-mpl-cfg-no-preprocessed">preprocessed headers</a>. See
<a class="reference internal" href="./cfg-no-preprocessed-headers.html">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a> for more information. — <em>end note</em>]</p>
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<div class="section" id="id1369">
<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
<pre class="literal-block">
#define <a href="./cfg-no-preprocessed-headers.html" class="identifier">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a>
#define <a href="./limit-set-size.html" class="identifier">BOOST_MPL_LIMIT_SET_SIZE</a> 10
<tt class="literal"><span class="pre">#</span></tt>include &lt;boost/mpl/<a href="./set.html" class="identifier">set</a>.hpp&gt;

using namespace boost::mpl;

typedef <a href="./set-c.html" class="identifier">set_c</a>&lt;int,1&gt; s_1;
typedef <a href="./set-c.html" class="identifier">set_c</a>&lt;int,1,2,3,4,5,6,7,8,9,10&gt; s_10;
// typedef <a href="./set-c.html" class="identifier">set_c</a>&lt;int,1,2,3,4,5,6,7,8,9,10,11&gt; s_11; // error!
</pre>
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<div class="section" id="id1370">
<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
<p><a class="reference internal" href="./configuration.html">Configuration</a>, <a class="reference internal" href="./cfg-no-preprocessed-headers.html">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a>, <a class="reference internal" href="./limit-map-size.html">BOOST_MPL_LIMIT_MAP_SIZE</a></p>
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