[#BloombergLP-ball-BroadcastObserver-deregisterObserver]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/BroadcastObserver.adoc[BroadcastObserver]::deregisterObserver
:relfileprefix: ../../../
:mrdocs:

Remove the observer having the specified `observerName` from the registry of this broadcast observer. Return 0 if the observer having `observerName` was successfully deregistered, and a non‐zero value (with no effect) otherwise. Henceforth, the observer that had `observerName` will no longer receive log records from this observer.

== Synopsis

Declared in `<ball_broadcastobserver.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
deregisterObserver(std::string_view const& observerName);
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