>Returns</strong></span>: The number blocks that will be allocated in the next chunk from the pool specified by <code class="computeroutput">pool_idx</code>.</p>
<p><span class="bold"><strong>Note</strong></span>: Non-standard extension. </p>
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<pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="idp39437568-bb"></a><span class="identifier">pool_block</span><span class="special">(</span><span cl