[#BloombergLP-baljsn-EncoderTestChoiceWithAllCategoriesChoice-isUndefinedValue]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/baljsn.adoc[baljsn]::xref:BloombergLP/baljsn/EncoderTestChoiceWithAllCategoriesChoice.adoc[EncoderTestChoiceWithAllCategoriesChoice]::isUndefinedValue
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:mrdocs:

Return 'true' if the value of this object is undefined, and 'false' otherwise.

== Synopsis

Declared in `<baljsn_encoder_testtypes.h>`

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


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