class="special">);</span> <span class="comment">//get the size function</span>

<span class="keyword">auto</span> <span class="identifier">size</span> <span class="special">=</span> <span class="identifier">size_f</span><span class="special">();</span>             <span class="comment">// get the size of the class</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">unique_ptr</span><span class="special">&lt;</span><span class="keyword">char</span><span class="sp