[#BloombergLP-bdlb-NullableAllocatedValue-2constructor-04c] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableAllocatedValue.adoc[NullableAllocatedValue]::NullableAllocatedValue :relfileprefix: ../../../ :mrdocs: Create a nullable object having the null value. Use the currently installed default allocator to supply memory. == Synopsis Declared in `<bdlb_nullableallocatedvalue.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- NullableAllocatedValue(xref:bsl/nullopt_t.adoc[bsl::nullopt_t] const&); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#