[#BloombergLP-bslma-UsesBslmaAllocator-010]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/UsesBslmaAllocator-020.adoc[UsesBslmaAllocator]&lt;xref:bsl/unordered_set-0d2d.adoc[bsl::unordered&lowbar;set&lt;KEY, HASH, EQUAL, ALLOCATOR&gt;]&gt;
:relfileprefix: ../../
:mrdocs:

Trait indicating `bsl&colon;&colon;unordered&lowbar;set` uses `bslma` allocators when `ALLOCATOR` allows&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class KEY,
    class HASH,
    class EQUAL,
    class ALLOCATOR&gt;
struct xref:BloombergLP/bslma/UsesBslmaAllocator-020.adoc[UsesBslmaAllocator]&lt;xref:bsl/unordered_set-0d2d.adoc[bsl::unordered&lowbar;set&lt;KEY, HASH, EQUAL, ALLOCATOR&gt;]&gt;
    : bsl::is&lowbar;convertible&lt;Allocator*, ALLOCATOR&gt;::type
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `bsl::is&lowbar;convertible&lt;Allocator*, ALLOCATOR&gt;::type`
| 
|===


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