[#CompareIteratorByHash-operator_call-08]
= xref:CompareIteratorByHash.adoc[CompareIteratorByHash]::operator()
:relfileprefix: ../
:mrdocs:

Compares two entry pointers by transaction hash&period;

== Synopsis

Declared in `&lt;kernel&sol;mempool&lowbar;entry&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;typename T&gt;
bool
operator()(
    T const& a,
    T const& b) const;
----

== Return Value

`true` if `a`&apos;s transaction hash is less than `b`&apos;s&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The left&hyphen;hand entry pointer&period;
| *b*
| The right&hyphen;hand entry pointer&period;
|===


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