[#BloombergLP-bdlb-NullableValue-2constructor-0ca]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue]::NullableValue
:relfileprefix: ../../../
:mrdocs:

Create a nullable object that has the null value and that uses the specified `allocator` (e.g., the address of a `bslma::Allocator` object) to supply memory. Note that this constructor will not participate in overload resolution unless `TYPE` is allocator aware.

== Synopsis

Declared in `<bdlb_nullablevalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
NullableValue(xref:BloombergLP/bdlb/NullableValue/allocator_type.adoc[allocator_type] const& allocator) noexcept;
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#