[#BloombergLP-ball-swap-09]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::swap
:relfileprefix: ../../
:mrdocs:

Exchange the values of the specified trees.

== Synopsis

Declared in `<ball_categorymanager_radixtree.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_TYPE>
void
swap(
    xref:BloombergLP/ball/CategoryManager_RadixTree.adoc[CategoryManager_RadixTree<t_TYPE>]& a,
    xref:BloombergLP/ball/CategoryManager_RadixTree.adoc[CategoryManager_RadixTree<t_TYPE>]& b);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:BloombergLP/ball/CategoryManager_RadixTree.adoc[CategoryManager_RadixTree], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| first tree to exchange
| *b*
| second tree to exchange
|===


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