[#BloombergLP-bdlc-FlatHashTable-operator_subs]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashTable.adoc[FlatHashTable]::operator[]
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If an entry with the specified `key` is not already present in this table, insert an entry having the value defined by `ENTRY_UTIL::construct`; otherwise, this method has no effect. Return an iterator referring to the (possibly newly inserted) object in this table with the `key`.

== Synopsis

Declared in `<bdlc_flathashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class KEY_TYPE>
ENTRY&
operator[](KEY_TYPE&& key);
----


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