[#CTxMemPool-CalculateAncestorData]
= xref:CTxMemPool.adoc[CTxMemPool]::CalculateAncestorData
:relfileprefix: ../
:mrdocs:

Compute the count, aggregate size, and aggregate fee of an entry's in‐mempool ancestors.

== Synopsis

Declared in `<txmempool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7fb95f555208), requires_capability(0x7fb968bc6918), requires_capability(0x7fb95fdd0758), requires_capability(0x7fb978b75b18), requires_capability(0x7fb96b8fb078), requires_capability(0x7fb96e5c1b48), requires_capability(0x7fb97a07bb78), requires_capability(0x7fb96be438c8)]]
std::tuple<size_t, size_t, CAmount>
CalculateAncestorData(xref:CTxMemPoolEntry.adoc[CTxMemPoolEntry] const& entry) const;
----

== Return Value

A tuple of ancestor count, ancestor size, and ancestor fees.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *entry*
| The entry whose ancestor data is computed.
|===


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