[#bsl-unordered_multiset-06c-bucket_size]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_multiset-06c.adoc[unordered_multiset]::bucket_size
:relfileprefix: ../../
:mrdocs:

Return the number of elements contained in the bucket at the specified `index` in the array of buckets maintained by this container. The behavior is undefined unless 'index < bucket_count()'.

== Synopsis

Declared in `<bslstl_unorderedmultiset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_multiset-06c/size_type.adoc[unordered_multiset<KEY, HASH, EQUAL, ALLOCATOR>::size_type]
bucket_size(xref:bsl/unordered_multiset-06c/size_type.adoc[size_type] index) const;
----


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