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

Const reference to a map entry.

== Synopsis

Declared in `<bdld_datum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:BloombergLP/bdld/DatumMapRef/element_type.adoc[element_type] const& const_reference;
----


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