ref="reference/algorithms/union_/union__3.html">union_</a>
</dt>
<dt id="ientry-idm45606667455088">unique, <a class="indexterm" href="reference/algorithms/unique.html">unique</a>
</dt>
</dl>
</div>
<div class="indexdiv">
<h3>V</h3>
<dl>
<dt id="ientry-idm45606662710944">validity_failure_type, <a class="indexterm" href="reference/enumerations/validity_failure_type.html">validity_failure_type</a>
</dt>
<dt id="ientry-idm45606656523216">value_eq, <a class="indexterm" href="reference/spatial_indexes/boost__geom