[#BloombergLP-ball-CategoryManager_RadixTree-forEach-0f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager_RadixTree.adoc[CategoryManager_RadixTree]::forEach
:relfileprefix: ../../../
:mrdocs:

Call the specified `functor` for each key‐value pair in this tree.

== Synopsis

Declared in `<ball_categorymanager_radixtree.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_FUNCTOR>
void
forEach(t_FUNCTOR const& functor);
----

== Description

The `functor` should be a callable object that accepts two parameters: `const bsl::string_view&` for the key and `t_VALUE&` for the value. The order of visitation is unspecified. Noteice that the functor is able to modify the value.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *functor*
| callable invoked for each key‐value pair
|===


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