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

Set the key for this entry to the specified `key`.

== Synopsis

Declared in `<bdld_datum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
setKey(xref:BloombergLP/bslstl/StringRef.adoc[bslstl::StringRef] const& key);
----


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