[#bsl-hashAppend-070]
= xref:bsl.adoc[bsl]::hashAppend
:relfileprefix: ../
:mrdocs:

Pass the specified `input` to the specified `hashAlg`

== Synopsis

Declared in `<bslstl_pair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class HASHALG,
    class T1,
    class T2>
void
hashAppend(
    HASHALG& hashAlg,
    xref:bsl/pair-0b.adoc[pair<T1, T2>] const& input);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hashAlg*
| hashing algorithm the pair's elements are passed to
| *input*
| pair whose elements are hashed
|===


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