dexterm" href="reference/spatial_indexes/observers/boost__geometry__index__indexable.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__indexable.operator___v_const___">operator()(V
            const &amp;)</a>, <a class="indexterm" href="reference/spatial_indexes/observers/boost__geometry__index__equal_to.html#geometry.reference.spatial_indexes.observers.boost__geometry__index__equal_to.operator___value_const____value_const___">operator()(Value
            const &amp;, Value const &a