[#BloombergLP-bdld-ManagedDatum-2constructor-003]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdld.adoc[bdld]::xref:BloombergLP/bdld/ManagedDatum.adoc[ManagedDatum]::ManagedDatum
:relfileprefix: ../../../
:mrdocs:

Create a `ManagedDatum` object having the default (null) value and using the specified `allocator` to supply memory&period;

== Synopsis

Declared in `&lt;bdld&lowbar;manageddatum&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
ManagedDatum(xref:BloombergLP/bdld/ManagedDatum/allocator_type.adoc[allocator&lowbar;type] const& allocator);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *allocator*
| allocator used to supply memory
|===


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