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

This `class` provides mutable access to a datum array. The users of this class can read from and assign to the individual elements as well as change the length of the array.

== Synopsis

Declared in `<bdld_datum.h>`

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

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/DatumMutableArrayRef/SizeType.adoc[`SizeType`] 
| `SizeType` is an alias for an unsigned integral value, representing the capacity of a datum array.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdld/DatumMutableArrayRef/2constructor-084.adoc[`DatumMutableArrayRef`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bdld/DatumMutableArrayRef/allocatedPtr.adoc[`allocatedPtr`] 
| Return pointer to the memory allocated for the array.
| xref:BloombergLP/bdld/DatumMutableArrayRef/capacity.adoc[`capacity`] 
| Return the allocated capacity of the array.
| xref:BloombergLP/bdld/DatumMutableArrayRef/data.adoc[`data`] 
| Return pointer to the first element of the held array.
| xref:BloombergLP/bdld/DatumMutableArrayRef/length.adoc[`length`] 
| Return pointer to the length of the array.
|===



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