">interval_type</span> <a name="idp57959072-bb"></a><span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">DomainT</span> <span class="special">&amp;</span> low<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">DomainT</span> <span class="special">&amp;</span> up<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keywo