[#BloombergLP-bdlb-hashAppend-021]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::hashAppend
:relfileprefix: ../../
:mrdocs:

Invoke the specified `hashAlgorithm` on the underlying buffer held by the specified `guid` object.

== Synopsis

Declared in `<bdlb_guid.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class HASH_ALGORITHM>
void
hashAppend(
    HASH_ALGORITHM& hashAlgorithm,
    xref:BloombergLP/bdlb/Guid.adoc[Guid] const& guid);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hashAlgorithm*
| hashing algorithm to update
| *guid*
| guid whose buffer is hashed
|===


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