[#bsl-unordered_map-0bf-hash_function]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_map-0bf.adoc[unordered&lowbar;map&lt;basic&lowbar;string&lt;char&gt;, Json, TransparentHash, TransparentEqualTo&gt;]::hash&lowbar;function
:relfileprefix: ../../
:mrdocs:

Return (a copy of) the unary hash functor used by this unordered map to generate a hash value (of type `size&lowbar;type`) for a `key&lowbar;type` object&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/TransparentHash.adoc[TransparentHash]
hash&lowbar;function() const;
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#
