 passes the result of the check to the overflow handler policy (the default
        policy throws an exception if out-of-range is detected)
      </p>
      <p>
        The implementation of this function is actually built from the policies and
        is basically as follows:
      </p>
<pre class="programlisting"><span class="identifier">result_type</span> <span class="identifier">converter</span><span class="special">&lt;&gt;::</span><span class="identifier">convert</span> <span class="special">(</span> 