[#BloombergLP-bdlar-NullableValueConstRef-2constructor-046]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlar.adoc[bdlar]::xref:BloombergLP/bdlar/NullableValueConstRef.adoc[NullableValueConstRef]::NullableValueConstRef
:relfileprefix: ../../../
:mrdocs:

Create `NullableValueConstRef` object that type erases the supplied `nullable` object.

== Synopsis

Declared in `<bdlar_nullablevalueref.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_NULLABLE>
explicit
NullableValueConstRef(
    t_NULLABLE const& nullable,
    void* = 0)
requires IsNullable<t_NULLABLE>::value;
----


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