[#bsl-hash-06-operator_call-0f]
= xref:bsl.adoc[bsl]::xref:bsl/hash-06.adoc[hash]::operator()
:relfileprefix: ../../
:mrdocs:

Return a hash value for the specified `value`.

== Synopsis

Declared in `<bslstl_hash.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size_t
operator()(TYPE const& value) const;
----

== Description

This implementation forwards to the call operator of the base class, but with the parameter guaranteed to be of type `TYPE`.

== Return Value

hash value for `value`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| value to hash
|===


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