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

Remove transactions from the mempool until its dynamic size is <= sizelimit. pvNoSpendsRemaining, if set, will be populated with the list of outpoints which are not in mempool which no longer have any spends in this mempool.

== Synopsis

Declared in `<txmempool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7fb95f556b88), requires_capability(0x7fb968bc8298), requires_capability(0x7fb95fdd20d8), requires_capability(0x7fb978b77498), requires_capability(0x7fb96b8fc9f8), requires_capability(0x7fb96e5c34c8), requires_capability(0x7fb97a07d4f8), requires_capability(0x7fb96be45248)]]
void
TrimToSize(
    size_t sizelimit,
    std::vector<COutPoint>* pvNoSpendsRemaining = nullptr);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *sizelimit*
| The target maximum dynamic memory size, in bytes.
| *pvNoSpendsRemaining*
| If set, receives outpoints no longer spent by the mempool.
|===


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