[#BloombergLP-bdlcc-FixedQueueIndexManager-2constructor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlcc.adoc[bdlcc]::xref:BloombergLP/bdlcc/FixedQueueIndexManager.adoc[FixedQueueIndexManager]::FixedQueueIndexManager
:relfileprefix: ../../../
:mrdocs:

Create an index manager for a circular buffer having the specified maximum `capacity`&period; Optionally specify a `basicAllocator` used to supply memory&period; If `basicAllocator` is 0, the currently installed default allocator is used&period; `isEnabled` will be `true` for the newly created index manager&period; The behavior is undefined unless `0 &lt; capacity` and `capacity &lt;&equals; k&lowbar;MAX&lowbar;CAPACITY`&period;

== Synopsis

Declared in `&lt;bdlcc&lowbar;fixedqueueindexmanager&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
FixedQueueIndexManager(
    std::size&lowbar;t capacity,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----


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