> <span class="special">&amp;</span> up<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">domain_type</span> <a name="idp59444768-bb"></a><span class="identifier">lower</span><span class="special">(</span><span class="keyword">const</span> interval_type <span class="special">&amp;</span> inter_val<span class="special">)</span><span class="special">;</span></pre></li>
<li class="l