[#SHA3_256-Finalize]
= xref:SHA3_256.adoc[SHA3&lowbar;256]::Finalize
:relfileprefix: ../
:mrdocs:

Squeeze out the digest of all data written so far&period;

== Synopsis

Declared in `&lt;crypto&sol;sha3&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:SHA3_256.adoc[SHA3&lowbar;256]&
Finalize(std::span&lt;unsigned char&gt; output);
----

== Return Value

A reference to this hasher, for chaining&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *output*
| Output span receiving the OUTPUT&lowbar;SIZE&hyphen;byte digest&period;
|===


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