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<dt><span class="section"><a href="holdergenerator.html#concepts.holdergenerator.introduction">Introduction</a></span></dt>
<dt><span class="section"><a href="holdergenerator.html#concepts.holdergenerator.concept_requirements">Concept
        Requirements</a></span></dt>
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<a name="concepts.holdergenerator.introduction"></a><a class="link" href="holdergenerator.html#concepts.holdergenerator.introduction" title="Introduction">Introduction</a>
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<p>
          A HolderGenerator is a unary metafunction class which returns types suitable
          for holding instances of its argument in a wrapped C++ class instance.
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        Requirements</a>
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<p>
          In the table below, <code class="computeroutput"><span class="identifier">G</span></code> denotes
          an type which models <code class="computeroutput"><span class="identifier">HolderGenerator</span></code>,
          and <code class="computeroutput"><span class="identifier">X</span></code> denotes a class type.
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                    Expression
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                    Requirements
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                  <p>
                    <code class="computeroutput"><span class="identifier">G</span><span class="special">::</span><span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">&gt;::</span><span class="identifier">type</span></code>
                  </p>
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                  <p>
                    A concrete subclass of <code class="computeroutput"><span class="identifier">instance_holder</span></code>
                    which can hold objects of type <code class="computeroutput"><span class="identifier">X</span></code>.
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<td align="right"><div class="copyright-footer">Copyright &#169; 2002-2005, 2015 David Abrahams, Stefan Seefeld<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>
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