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

This `class` provides a mutable access to a datum map&period; The users of this class can assign to the individual elements and also change the size of the map&period;

== Synopsis

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

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

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/DatumMutableMapRef/SizeType.adoc[`SizeType`] 
| Unsigned integral type for capacities, key sizes, and string lengths&period;
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/DatumMutableMapRef/2constructor-0b.adoc[`DatumMutableMapRef`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bdld/DatumMutableMapRef/allocatedPtr.adoc[`allocatedPtr`] 
| Return pointer to the memory allocated for the map&period;
| xref:BloombergLP/bdld/DatumMutableMapRef/data.adoc[`data`] 
| Return pointer to the first element in the (held) map&period;
| xref:BloombergLP/bdld/DatumMutableMapRef/size.adoc[`size`] 
| Return pointer to the location where the (held) map&apos;s size is stored&period;
| xref:BloombergLP/bdld/DatumMutableMapRef/sorted.adoc[`sorted`] 
| Return pointer to the location where the (held) map&apos;s _sorted_ flag is stored&period;
|===



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