[#bsl-unordered_multiset-06c-count-01] = xref:bsl.adoc[bsl]::xref:bsl/unordered_multiset-06c.adoc[unordered_multiset]::count :relfileprefix: ../../ :mrdocs: Return the number of `value_type` objects within this unordered multiset that are equivalent to the specified `key`. == 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] count(xref:bsl/unordered_multiset-06c/key_type.adoc[key_type] const& key) const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#