[#CCoinsViewMemPool-GetCoin]
= xref:CCoinsViewMemPool.adoc[CCoinsViewMemPool]::GetCoin
:relfileprefix: ../
:mrdocs:

GetCoin, returning whether it exists and is not spent. Also updates m_non_base_coins if the coin is not fetched from base. May populate the base view on cache misses.

== Synopsis

Declared in `<txmempool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
std::optional<Coin>
GetCoin(xref:COutPoint.adoc[COutPoint] const& outpoint) const override;
----

== Return Value

The coin if it exists and is unspent, otherwise std::nullopt.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *outpoint*
| The outpoint to look up.
|===


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