 class="language-c++" data-lang="c++"><span class="k">class</span><span class="err"> </span><span class="nc">file_handle</span>
<span class="p">{</span>
  <span class="kt">int</span> <span class="n">_fd</span><span class="p">{</span><span class="o">-</span><span class="mi">1</span><span class="p">};</span>  <span class="c1">// file descriptor
</span><span class="c1"></span>  <span class="k">struct</span> <span class="n">stat</span> <span class="n">_stat</span>
  <span class="p">{</span>
    <span class="mi"