titlepage"><div><div><h1 style="clear: both">The payload</h1></div></div></div>
  <p>We define the code domain&rsquo;s <code>value_type</code> &ndash; the payload to be transported by
status codes using this code domain &ndash; to be a POSIX <code>errno</code> value, an integer
line number and a const char pointer.</p>

<div class="code-snippet"><div class="highlight"><pre class="chroma"><code class="language-c++" data-lang="c++"><span class="k">public</span><span class="o">:</span>
  <span class="c1">// Th