boost/libs/python/doc/html/reference/concepts/holdergenerator.html
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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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<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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<a name="concepts.holdergenerator.concept_requirements"></a><a class="link" href="holdergenerator.html#concepts.holdergenerator.concept_requirements" title="Concept Requirements">Concept
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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<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>
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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 © 2002-2005, 2015 David Abrahams, Stefan Seefeld<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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