[#SipHashState-Compress1]
= xref:SipHashState.adoc[SipHashState]::Compress1
:relfileprefix: ../
:mrdocs:

Mutably compress one block into this state, with 1 SipRound.

== Synopsis

Declared in `<crypto/siphash.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[always_inline]]
xref:SipHashState.adoc[SipHashState]&
Compress1(uint64_t data) noexcept;
----

== Return Value

Reference to this state, to allow chaining.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *data*
| The 64‐bit block to compress.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#