[#bsl-unordered_set-0d2d-2constructor-09]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-0d2d.adoc[unordered_set]::unordered_set
:relfileprefix: ../../
:mrdocs:

Create an unordered set from the specified `values` initializer list.

== Synopsis

Declared in `<bslstl_unorderedset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class = void,
    class = void,
    class = void>
requires std::is_invocable_v<HASH, const KEY &> && std::is_invocable_v<EQUAL, const KEY &, const KEY &> && bsl::IsStdAllocator_v<ALLOCATOR>
unordered_set(
    std::initializer_list<KEY> values,
    xref:bsl/unordered_set-0d2d/size_type.adoc[size_type] initialNumBuckets = 0,
    HASH const& hashFunction = HASH(),
    EQUAL const& keyEqual = EQUAL(),
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----


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