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

Return a const‐pointer to the number of elements of the map this reference object represents.

== Synopsis

Declared in `<bdld_datum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdld/DatumMapRef/size_type.adoc[DatumMapRef::size_type]
size() const noexcept;
----


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