name="scanner_policies_mixer"></a>
<h3>scanner_policies mixer</h3>
<p> The class <tt>scanner_policies</tt> combines the three scanner policy classes 
  above into one:</p>
<pre>
    <code><span class=keyword>template </span><span class=special>&lt;
        </span><span class=keyword>typename </span><span class=identifier>IterationPolicyT   </span><span class=special>= </span><span class=identifier>iteration_policy</span><span class=special>,
        </span><span class=keyword>typename </span><span class=ide