[#CompareIteratorByHash-operator_call-00]
= xref:CompareIteratorByHash.adoc[CompareIteratorByHash]::operator()
:relfileprefix: ../
:mrdocs:

Function call operators

== Synopses

Declared in `<kernel/mempool_entry.h>`

Compares two entry pointers by transaction hash.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename T>
bool
xref:CompareIteratorByHash/operator_call-08.adoc[operator()](
    T const& a,
    T const& b) const;
----

[.small]#xref:CompareIteratorByHash/operator_call-08.adoc[_» more..._]#

Compares two wrapped entries by transaction hash.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename T>
bool
xref:CompareIteratorByHash/operator_call-0e.adoc[operator()](
    std::reference_wrapper<T> const& a,
    std::reference_wrapper<T> const& b) const;
----

[.small]#xref:CompareIteratorByHash/operator_call-0e.adoc[_» more..._]#

== Return Value

`true` if `a`'s transaction hash is less than `b`'s.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The left‐hand entry pointer.
| *b*
| The right‐hand entry pointer.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#