[#BloombergLP-bslstl-HashTable_HashWrapper-0d-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/HashTable_HashWrapper-0d.adoc[HashTable_HashWrapper<FUNCTOR&>]::operator()
:relfileprefix: ../../../
:mrdocs:

Call the wrapped `functor` with the specified `arg` and return the result. Note that `ARG_TYPE` will typically be deduced as a `const` type.

== Synopsis

Declared in `<bslstl_hashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class ARG_TYPE>
std::size_t
operator()(ARG_TYPE& arg) const;
----


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