[#BloombergLP-bslstl-HashTable_HashWrapper-02-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/HashTable_HashWrapper-02.adoc[HashTable&lowbar;HashWrapper&lt;FUNCTOR const&gt;]::operator()
:relfileprefix: ../../../
:mrdocs:

Call the wrapped hash functor with `arg`&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class ARG&lowbar;TYPE&gt;
std::size&lowbar;t
operator()(ARG&lowbar;TYPE& arg) const;
----

== Description

Call the wrapped `functor` with the specified `arg` and return the result&period; Note that `ARG&lowbar;TYPE` will typically be deduced as a `const` type&period;

== Return Value

result of calling the wrapped hash functor with `arg`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *arg*
| argument forwarded to the hash functor
|===


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