[#BloombergLP-bdlc-FlatHashMap-at-0b]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashMap.adoc[FlatHashMap]::at
:relfileprefix: ../../../
:mrdocs:

Return a reference providing non&hyphen;modifiable access to the mapped value associated with the specified `key` in this map, if such an entry exists&semi; otherwise throw a `std&colon;&colon;out&lowbar;of&lowbar;range` exception&period; Note that this method is not exception&hyphen;neutral&period;

== Synopsis

Declared in `&lt;bdlc&lowbar;flathashmap&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
VALUE const&
at(KEY const& key) const;
----


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