ntifier">MyClass</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span><span class="special">)</span>
      <span class="special">:</span>  <span class="identifier">int_</span><span class="special">(</span><span class="identifier">i</span><span class="special">)</span>
      <span class="special">{}</span>
   <span class="keyword">friend</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">&lt;</span> <span class=