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

This class implements a smart‐pointer‐like resource manager for a `Datum` object.

== Synopsis

Declared in `<bdld_manageddatum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class ManagedDatum;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/ManagedDatum/allocator_type.adoc[`allocator_type`] 
| Alias for the allocator type used by this class.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/ManagedDatum/2constructor-0e.adoc[`ManagedDatum`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bdld/ManagedDatum/2destructor.adoc[`~ManagedDatum`] [.small]#[destructor]#
| Destroy this object and release all dynamically allocated memory managed by this object.
| xref:BloombergLP/bdld/ManagedDatum/operator_assign-02.adoc[`operator=`] 
| Assignment operators
| xref:BloombergLP/bdld/ManagedDatum/adopt.adoc[`adopt`] 
| Take ownership of the specified `obj` and destroy the previously managed `Datum` object.
| xref:BloombergLP/bdld/ManagedDatum/allocator.adoc[`allocator`] 
| Return `get_allocator().mechanism()`.
| xref:BloombergLP/bdld/ManagedDatum/clone.adoc[`clone`] 
| Assign to this object a deep copy of the specified `value`.
| xref:BloombergLP/bdld/ManagedDatum/datum.adoc[`datum`] 
| Return a `const` reference to the `Datum` object managed by this object.
| xref:BloombergLP/bdld/ManagedDatum/get_allocator.adoc[`get_allocator`] 
| Return the allocator used by this object to supply memory.
| xref:BloombergLP/bdld/ManagedDatum/makeNull.adoc[`makeNull`] 
| Make the `Datum` object managed by this object null and release all dynamically allocated memory managed by this object.
| xref:BloombergLP/bdld/ManagedDatum/operator_star.adoc[`operator*`] 
| Return a `const` reference to the `Datum` object managed by this object.
| xref:BloombergLP/bdld/ManagedDatum/operator_ptr.adoc[`operator‐>`] 
| Return an address providing non‐modifiable access to the `Datum` object managed by this object.
| xref:BloombergLP/bdld/ManagedDatum/print.adoc[`print`] 
| Format this object to the specified output `stream` and return a reference to the modifiable `stream`.
| xref:BloombergLP/bdld/ManagedDatum/release.adoc[`release`] 
| Return the managed `Datum` by value and set this object to null.
| xref:BloombergLP/bdld/ManagedDatum/swap.adoc[`swap`] 
| Efficiently exchange the value of this object with that of `other`.
| xref:BloombergLP/bdld/ManagedDatum/2conversion.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<ManagedDatum, IsBitwiseMoveable>`] 
| `ManagedDatum` objects are allocator‐aware and bitwise movable.
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/operator_not_eq-05.adoc[`operator!=`]
| Return `true` if the specified `lhs` and `rhs` do not have the same value, and `false` otherwise.
| xref:BloombergLP/bdld/operator_eq-08a.adoc[`operator==`]
| Return `true` if the specified `lhs` and `rhs` have the same value, and `false` otherwise.
| xref:BloombergLP/bdld/swap.adoc[`swap`]
| Exchange the values of the specified `a` and `b` objects.
|===


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