[#CDiskBlockIndex-2constructor-06]
= xref:CDiskBlockIndex.adoc[CDiskBlockIndex]::CDiskBlockIndex
:relfileprefix: ../
:mrdocs:

Constructs a disk block index from an in‐memory block index entry.

== Synopsis

Declared in `<chain.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
CDiskBlockIndex(xref:CBlockIndex.adoc[CBlockIndex] const* pindex);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pindex*
| The block index entry to copy, whose predecessor hash is captured.
|===


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