[#CCheckQueueControl-Complete]
= xref:CCheckQueueControl.adoc[CCheckQueueControl]::Complete
:relfileprefix: ../
:mrdocs:

Waits for all queued checks to finish and returns any failure&period;

== Synopsis

Declared in `&lt;checkqueue&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::optional&lt;R&gt;
Complete();
----

== Return Value

The error from the first failed check, or std&colon;&colon;nullopt if all passed&period;


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