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<title>Struct template is_aggregate</title>
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<span class="keyword">struct</span> <a class="link" href="is_aggregate.html" title="Struct template is_aggregate">is_aggregate</a> <span class="special">:</span> <span class="keyword"></span> mpl::bool_<<em class="replaceable"><code>true-or-false</code></em>> <span class="special">{</span>
<span class="special">}</span><span class="special">;</span></pre></div>
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-<a name="id2865334"></a><h2>Description</h2>
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<code class="computeroutput">proto::is_aggregate<></code> is used by the
<code class="computeroutput"><a class="link" href="make.html" title="Struct template make">proto::make<></a></code> transform to determine how