[#CompareIteratorByHash]
= CompareIteratorByHash
:mrdocs:

Orders mempool entry handles by the hash of their transaction&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct CompareIteratorByHash;
----

== Description

SFINAE lets `T` be either a pointer type (e&period;g&period; a txiter) or a `reference&lowbar;wrapper&lt;T&gt;` (e&period;g&period; a wrapped `CTxMemPoolEntry&amp;`)&period;

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:CompareIteratorByHash/operator_call-00.adoc[`operator()`] 
| Function call operators
|===



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