[#cluster_linearize-StrongComparator]
= xref:cluster_linearize.adoc[cluster&lowbar;linearize]::StrongComparator
:relfileprefix: ../
:mrdocs:

Concept for function objects that return std&colon;&colon;strong&lowbar;ordering when invoked with two Args&period;

== Synopsis

Declared in `&lt;cluster&lowbar;linearize&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    typename F,
    typename Arg&gt;
concept StrongComparator = std&colon;&colon;regular&lowbar;invocable&lt;F, Arg, Arg&gt; &amp;&amp;
    std&colon;&colon;is&lowbar;same&lowbar;v&lt;std&colon;&colon;invoke&lowbar;result&lowbar;t&lt;F, Arg, Arg&gt;, std&colon;&colon;strong&lowbar;ordering&gt;;
----


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