n class="special">&amp;</span> <span class="identifier">v</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Policy</span><span class="special">&amp;);</span>
</pre>
<p>
        These functions return the closest integer to the argument <span class="emphasis"><em>v</em></span>.
      </p>
<p>
        Halfway cases are rounded away from zero, regardless of the current rounding
        direction.
      </p>
<p>
        If the argument <span class="emphasis"><em>v<