[#std-hash-0f-operator_call]
= xref:std.adoc[std]::xref:std/hash-0f.adoc[hash&lt;folly::RequestToken&gt;]::operator()
:relfileprefix: ../../
:mrdocs:

Computes the hash of a token&period;

== Synopsis

Declared in `&lt;folly&sol;io&sol;async&sol;Request&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size&lowbar;t
operator()(xref:folly/RequestToken.adoc[folly::RequestToken] const& token) const;
----

== Return Value

The hash value of the token&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *token*
| The token to hash&period;
|===


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