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

Join the execution until completion&period; If at least one evaluation wasn&apos;t successful, return its error&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;requires&lowbar;capability(0x7f2e18ccb778), requires&lowbar;capability(0x7f2e333923c8), requires&lowbar;capability(0x7f2e370f4c08), requires&lowbar;capability(0x7f2e090ef278), requires&lowbar;capability(0x7f2e2802de28)&rsqb;&rsqb;
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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