[#bsl-unordered_set-0d2d-size]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-0d2d.adoc[unordered_set]::size
:relfileprefix: ../../
:mrdocs:

Return the number of elements in this set.

== Synopsis

Declared in `<bslstl_unorderedset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_set-0d2d/size_type.adoc[unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::size_type]
size() const noexcept;
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#