[#BaseIndex-SetBestBlockIndex]
= xref:BaseIndex.adoc[BaseIndex]::SetBestBlockIndex
:relfileprefix: ../
:mrdocs:

Update the internal best block index as well as the prune lock.

== Synopsis

Declared in `<index/base.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
SetBestBlockIndex(xref:CBlockIndex.adoc[CBlockIndex] const* block);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *block*
| Block index entry to record as the new best block.
|===


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