[#BloombergLP-bdlb-NullableValue-2constructor-0fd4]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue]::NullableValue
:relfileprefix: ../../../
:mrdocs:

Create a nullable object from the specified `value` converted to `TYPE`.

== Synopsis

Declared in `<bdlb_nullablevalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
NullableValue(BDE_OTHER_TYPE&& value)
requires bsl::is_convertible<BDE_OTHER_TYPE, TYPE>::value &&
                      !bsl::is_convertible<BDE_OTHER_TYPE,
                                           allocator_type>::value;
----

== Description

Create a nullable object having the specified `value` (of `BDE_OTHER_TYPE`) converted to `TYPE`. If `TYPE` takes an optional allocator at construction, use the currently installed default allocator to supply memory. Note that this constructor will not participate in overload resolution unless `BDE_OTHER_TYPE` is convertible to `TYPE` and is not convertible to `allocator_type`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| value converted to `TYPE`
|===


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