[#BloombergLP-ball-CategoryManager_RadixTree_Node-prefix-08]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager_RadixTree_Node.adoc[CategoryManager&lowbar;RadixTree&lowbar;Node]::prefix
:relfileprefix: ../../../
:mrdocs:

Return a modifiable reference to the prefix string of this node&period;

== Synopsis

Declared in `&lt;ball&lowbar;categorymanager&lowbar;radixtree&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/string.adoc[bsl::string]&
prefix();
----

== Description

Note that only a part of the prefix is stored in a node&semi; the full key is obtained by concatenating the prefixes of all nodes&period;

== Return Value

modifiable reference to the prefix string


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