[#bsl-unordered_set-09-key_eq]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-09.adoc[unordered_set<Attribute, AttributeHash>]::key_eq
:relfileprefix: ../../
:mrdocs:

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

== Synopsis

Declared in `<bslstl_unorderedset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/equal_to-0d.adoc[equal_to<Attribute>]
key_eq() const;
----


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