an>
</pre>
<p>
        Then, we inject a reference to <code class="computeroutput"><span class="identifier">error_handler</span></code>,
        using the <code class="computeroutput"><span class="identifier">with</span></code> directive
        similar to what we did in the <a class="link" href="annotation.html#__tutorial_with_directive__">annotations
        example</a>:
      </p>
<pre class="programlisting"><span class="keyword">auto</span> <span class="keyword">const</span> <span class="identifier">par