[#CCoinsView-HaveCoin]
= xref:CCoinsView.adoc[CCoinsView]::HaveCoin
:relfileprefix: ../
:mrdocs:

Just check whether a given outpoint is unspent. May populate the cache. Use PeekCoin() to perform a non‐caching lookup.

== Synopsis

Declared in `<coins.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
bool
HaveCoin(xref:COutPoint.adoc[COutPoint] const& outpoint) const = 0;
----

== Return Value

True if the outpoint is unspent.

== Parameters

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


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