"identifier">x</span><span class="special">;</span> <span class="comment">// Function body.</span>
<span class="special">}</span>
</pre>
<p>
    </p>
<p>
      When the above function <code class="computeroutput"><span class="identifier">inc</span></code>
      is called, this library will:
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          First, execute the functor passed to <code class="computeroutput"><span class="special">.</span