e class="literallayout"><span class="keyword">void</span> <a name="idp49404192-bb"></a><span class="identifier">reserve</span><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">segment_manager_base</span><span class="special">::</span><span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>
<p>This reserves memory to optimize the insertion of n elements in the index </p>
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