[#index_util-DBHashKey-2constructor]
= xref:index_util.adoc[index&lowbar;util]::xref:index_util/DBHashKey.adoc[DBHashKey]::DBHashKey
:relfileprefix: ../../
:mrdocs:

Construct a hash key for the given block hash&period;

== Synopsis

Declared in `&lt;index&sol;db&lowbar;key&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
DBHashKey(xref:uint256.adoc[uint256] const& hash&lowbar;in);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hash&lowbar;in*
| Block hash to encode&period;
|===


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