[#BloombergLP-balb-Choice2-isUndefinedValue]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balb.adoc[balb]::xref:BloombergLP/balb/Choice2.adoc[Choice2]::isUndefinedValue
:relfileprefix: ../../../
:mrdocs:

Return `true` if the value of this object is undefined, and `false` otherwise&period;

== Synopsis

Declared in `&lt;balb&lowbar;testmessages&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isUndefinedValue() const;
----


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