an class="special">,</span>
                  <span class="identifier">Policy</span><span class="special">&gt;()</span></code>
                </p>
              </td>
<td>
                <p>
                  Epsilon for type T, possibly overridden by the Policy.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <code class="computeroutput"><span class="identifier">tools</span><span class="special">::</span><span class="identifier">digits</span><span class="spe