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

Return the number of representable generations for a circular buffer of the specified `capacity`.

== Synopsis

Declared in `<bdlcc_fixedqueueindexmanager.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
unsigned int
numRepresentableGenerations(std::size_t capacity);
----

== Return Value

number of representable generations

== Parameters

[cols="1,4"]
|===
| Name| Description
| *capacity*
| capacity of the circular buffer
|===


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