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

Return the capacity of the held `Datum` map. The behavior is undefined if `commit` or `sortAndCommit` has already been called on this object. Note that similar to the capacity of a `vector`, the returned capacity has no bearing on the value of the `Datum` being constructed, but does indicate at which point additional memory will be required to grow the `Datum` map being built.

== Synopsis

Declared in `<bdld_datummapbuilder.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdld/DatumMapBuilder/SizeType.adoc[DatumMapBuilder::SizeType]
capacity() const;
----


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