[#BloombergLP-bslmt-QLock_EventFlag-2constructor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/QLock_EventFlag.adoc[QLock&lowbar;EventFlag]::QLock&lowbar;EventFlag
:relfileprefix: ../../../
:mrdocs:

Create an unset flag&period;

== Synopsis

Declared in `&lt;bslmt&lowbar;qlock&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
QLock&lowbar;EventFlag();
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