[#BloombergLP-baljsn-JsonFormatter-putNullValue]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/baljsn.adoc[baljsn]::xref:BloombergLP/baljsn/JsonFormatter.adoc[JsonFormatter]::putNullValue
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:mrdocs:

Set the value of the current array element or object value ‐‐ depending on the context ‐‐ to `bdljsn::JsonNull`. Return 0 on success and a non‐zero value otherwise. An error is returned when `putNullValue` is called in an unexpected context.

== Synopsis

Declared in `<baljsn_jsonformatter.h>`

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


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