[#kernel-BlockTreeDB-ReadLastBlockFile]
= xref:kernel.adoc[kernel]::xref:kernel/BlockTreeDB.adoc[BlockTreeDB]::ReadLastBlockFile
:relfileprefix: ../../
:mrdocs:

Read the number of the last block file in use.

== Synopsis

Declared in `<node/blockstorage.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
ReadLastBlockFile(int& nFile);
----

== Return Value

True on success, false if the value could not be read.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *nFile*
| Output filled with the last block‐file number.
|===


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