[#BloombergLP-bdlb-NullableValueRef-valueOrNull]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableValueRef.adoc[NullableValueRef]::valueOrNull
:relfileprefix: ../../../
:mrdocs:

Return an address providing non‐modifiable access to the underlying object of a (template parameter) `TYPE` if this object is non‐null, and 0 otherwise.

== Synopsis

Declared in `<bdlb_nullablevalueref.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
TYPE const*
valueOrNull() const;
----


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