"n">UnarySquare</span><span class="o">&gt;::</span><span class="n">make</span><span class="p">());</span>
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<p>Let inst be an instance of the class ud</p>
<div class="highlight-c++"><div class="highlight"><pre><span></span><span class="n">p</span><span class="o">::</span><span class="n">object</span> <span class="n">inst</span> <span class="o">=</span> <span class="n">ud</span><span class="p">();</span>
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<p>Use the &#8220;__call__&#8221; method to call the overloaded () 