[#BloombergLP-bdlb-NullableValue-Base]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue]::Base
:relfileprefix: ../../../
:mrdocs:

Base class of this type.

== Synopsis

Declared in `<bdlb_nullablevalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:bsl/optional-072.adoc[bsl::optional<TYPE>] Base;
----


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