[#BloombergLP-bslh-hashAppend-0f38]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslh.adoc[bslh]::hashAppend
:relfileprefix: ../../
:mrdocs:

Invoke the (appropriate) `hashAppend` function, with the specified `algorithm` on the `first` and `second` members, in that order, of the specified `input` pair.

== Synopsis

Declared in `<bslh_hashpair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class HASH_ALGORITHM,
    class TYPE1,
    class TYPE2>
void
hashAppend(
    HASH_ALGORITHM& algorithm,
    std::pair<TYPE1, TYPE2> const& input);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *algorithm*
| hashing algorithm that receives the pair members
| *input*
| pair whose `first` and `second` members are hashed
|===


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