[#BloombergLP-bdlc-FlatHashSet-key_eq]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet]::key_eq
:relfileprefix: ../../../
:mrdocs:

Return (a copy of) the binary key‐equality functor that returns `true` if the value of two `KEY` objects are equivalent, and `false` otherwise.

== Synopsis

Declared in `<bdlc_flathashset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
EQUAL
key_eq() const;
----


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