[#GCSFilter-Params]
= xref:GCSFilter.adoc[GCSFilter]::Params
:relfileprefix: ../
:mrdocs:

Parameters controlling the SipHash keys and Golomb‐Rice encoding of a filter.

== Synopsis

Declared in `<blockfilter.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct Params;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:GCSFilter/Params/2constructor.adoc[`Params`]         [.small]#[constructor]#
| Constructs filter parameters from the SipHash keys and coding parameters.
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:GCSFilter/Params/m_M.adoc[`m_M`] 
| Inverse false positive rate
| xref:GCSFilter/Params/m_P.adoc[`m_P`] 
| Golomb‐Rice coding parameter
| xref:GCSFilter/Params/m_siphash_k0.adoc[`m_siphash_k0`] 
| First 64‐bit half of the SipHash key.
| xref:GCSFilter/Params/m_siphash_k1.adoc[`m_siphash_k1`] 
| Second 64‐bit half of the SipHash key.
|===



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