[#BloombergLP-bslstl-Variant_HashVisitor-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Variant_HashVisitor.adoc[Variant&lowbar;HashVisitor]::operator()
:relfileprefix: ../../../
:mrdocs:

Append the specified `value` (i&period;e&period;, the alternative that is being visited) to `d&lowbar;hashAlg`&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;variant&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;TYPE&gt;
void
operator()(t&lowbar;TYPE& value) const;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| alternative value to append to the hashing algorithm
|===


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