[#BloombergLP-ball-CategoryManager_RadixTree-OptValueCRef]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager_RadixTree.adoc[CategoryManager_RadixTree]::OptValueCRef
:relfileprefix: ../../../
:mrdocs:

Type for immutable access to the optional value. Used also as return type for immutable finders where empty optional signifies "not found".

== Synopsis

Declared in `<ball_categorymanager_radixtree.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:bsl/optional-072.adoc[bsl::optional<bsl::reference_wrapper<t_VALUE const>>] OptValueCRef;
----


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