[#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&period;

== Synopsis

Declared in `&lt;bslh&lowbar;hashpair&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class HASH&lowbar;ALGORITHM,
    class TYPE1,
    class TYPE2&gt;
void
hashAppend(
    HASH&lowbar;ALGORITHM& algorithm,
    std::pair&lt;TYPE1, TYPE2&gt; const& input);
----


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