[#bsl-hash_multiset-count]
= xref:bsl.adoc[bsl]::xref:bsl/hash_multiset.adoc[hash_multiset]::count
:relfileprefix: ../../
:mrdocs:

Return the number of elements equal to the specified `__key`.

== Synopsis

Declared in `<bslstp_hashset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/hash_multiset/size_type.adoc[size_type]
count(xref:bsl/hash_multiset/key_type.adoc[key_type] const& __key) const;
----

== Return Value

number of elements matching `__key`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *__key*
| key to count
|===


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