[#BloombergLP-ball-CategoryManager-addDefaultCategory]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager.adoc[CategoryManager]::addDefaultCategory
:relfileprefix: ../../../
:mrdocs:

If this method is called the first time (`d_defaultCategory_p` is null) add a new category with the (unspecified) default category name (possibly changed by the registered category name filter callback). Use the default threshold levels for the new category. The behavior is undefined if the default category already exists but has not been added by this method.

== Synopsis

Declared in `<ball_categorymanager.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
addDefaultCategory();
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