[#CTxMemPoolEntry-UpdateModifiedFee]
= xref:CTxMemPoolEntry.adoc[CTxMemPoolEntry]::UpdateModifiedFee
:relfileprefix: ../
:mrdocs:

Updates the modified fee with the descendant or ancestor delta&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
UpdateModifiedFee(xref:CAmount.adoc[CAmount] fee&lowbar;diff) const;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *fee&lowbar;diff*
| The fee delta to add&period;
|===


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