[#BloombergLP-bdlc-FlatHashTable-controls]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashTable.adoc[FlatHashTable]::controls
:relfileprefix: ../../../
:mrdocs:

Return the address of the first element of the underlying array of control values in this table, or 0 if this table is in the zero‐capacity state. An element of this array has the value `FlatHashTable_GroupControl::k_EMPTY`, `FlatHashTable_GroupControl::k_ERASED`, or a seven bit hashlet value for the in‐use position (the highest‐order bit is unset).

== Synopsis

Declared in `<bdlc_flathashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint8_t const*
controls() const;
----


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