[#BloombergLP-bslstl-Variant_HashVisitor-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Variant_HashVisitor.adoc[Variant_HashVisitor]::operator()
:relfileprefix: ../../../
:mrdocs:

Append the specified `value` (i.e., the alternative that is being visited) to `d_hashAlg`.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_TYPE>
void
operator()(t_TYPE& value) const;
----


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