[#BloombergLP-bdlcc-StripedUnorderedContainerImpl-bucketSize]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlcc.adoc[bdlcc]::xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl.adoc[StripedUnorderedContainerImpl]::bucketSize
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Return the number of elements contained in the bucket at the specified `index` in the array of buckets maintained by this hash map&period; The behavior is undefined unless `0 &lt;&equals; index &lt; bucketCount()`&period;

== Synopsis

Declared in `&lt;bdlcc&lowbar;stripedunorderedcontainerimpl&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size&lowbar;t
bucketSize(std::size&lowbar;t index) const;
----


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