[#SHA3_256-Finalize]
= xref:SHA3_256.adoc[SHA3_256]::Finalize
:relfileprefix: ../
:mrdocs:

Squeeze out the digest of all data written so far.

== Synopsis

Declared in `<crypto/sha3.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:SHA3_256.adoc[SHA3_256]&
Finalize(std::span<unsigned char> output);
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== Return Value

A reference to this hasher, for chaining.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *output*
| Output span receiving the OUTPUT_SIZE‐byte digest.
|===


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