[#BloombergLP-ball-CategoryManager-2constructor-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager.adoc[CategoryManager]::CategoryManager
:relfileprefix: ../../../
:mrdocs:

Create a category manager with the hardwired default levels for new categories and no defaults or namefilter callback set&period; Optionally specify a `basicAllocator` used to supply memory&period; If `basicAllocator` is 0, the currently installed default allocator is used&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
CategoryManager(xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----


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