[#bsl-unordered_set-0d2d-size]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-0d2d.adoc[unordered&lowbar;set]::size
:relfileprefix: ../../
:mrdocs:

Return the number of elements in this set&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;unorderedset&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_set-0d2d/size_type.adoc[unordered&lowbar;set&lt;KEY, HASH, EQUAL, ALLOCATOR&gt;::size&lowbar;type]
size() const noexcept;
----


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