[#HashWriter-GetCheapHash]
= xref:HashWriter.adoc[HashWriter]::GetCheapHash
:relfileprefix: ../
:mrdocs:

Returns the first 64 bits from the resulting hash.

== Synopsis

Declared in `<hash.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint64_t
GetCheapHash();
----

== Return Value

The low 64 bits of the double‐SHA‐256 hash.


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