[#BloombergLP-bslh-SpookyHashAlgorithm-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslh.adoc[bslh]::xref:BloombergLP/bslh/SpookyHashAlgorithm.adoc[SpookyHashAlgorithm]::operator()
:relfileprefix: ../../../
:mrdocs:

Incorporate the specified `data`, of at least the specified `numBytes`, into the internal state of the hashing algorithm. Every bit of data incorporated into the internal state of the algorithm will contribute to the final hash produced by `computeHash()`. The same hash value will be produced regardless of whether a sequence of bytes is passed in all at once or through multiple calls to this member function. Input where `numBytes` is 0 will have no effect on the internal state of the algorithm. The behaviour is undefined unless `data` points to a valid memory location with at least `numBytes` bytes of initialized memory or `numBytes` is zero.

== Synopsis

Declared in `<bslh_spookyhashalgorithm.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
operator()(
    void const* data,
    size_t numBytes);
----


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