[#bsl-set-0d-key_compare]
= xref:bsl.adoc[bsl]::xref:bsl/set-0d.adoc[set]::key_compare
:relfileprefix: ../../
:mrdocs:

This `typedef` is an alias to the (template parameter) `COMPARATOR`.

== Synopsis

Declared in `<bslstl_set.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef COMPARATOR key_compare;
----


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