[#BloombergLP-ball-UserFields-appendNull]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/UserFields.adoc[UserFields]::appendNull
:relfileprefix: ../../../
:mrdocs:

Append an element having the unset value to this object.

== Synopsis

Declared in `<ball_userfields.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
appendNull();
----


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