[#BloombergLP-bdlar-NullableValueRef-2constructor-04] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlar.adoc[bdlar]::xref:BloombergLP/bdlar/NullableValueRef.adoc[NullableValueRef]::NullableValueRef :relfileprefix: ../../../ :mrdocs: Create `NullableValueRef` 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 NullableValueRef( t_NULLABLE& nullable, void* = 0) requires IsNullable<t_NULLABLE>::value; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#