[#bsl-unordered_set-02a-clear]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-02a.adoc[unordered&lowbar;set&lt;ManagedAttribute, AttributeHash&gt;]::clear
:relfileprefix: ../../
:mrdocs:

Remove all entries from this unordered set&period; Note that the set is empty after this call, but allocated memory may be retained for future use&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
clear() noexcept;
----


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