[#bsl-unordered_set-0d2d-2constructor-0a6]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-0d2d.adoc[unordered_set]::unordered_set
:relfileprefix: ../../
:mrdocs:

Create an empty unordered set using the specified `basicAllocator`.

== Synopsis

Declared in `<bslstl_unorderedset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
unordered_set(ALLOCATOR const& basicAllocator);
----


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