[#BloombergLP-balm-MetricRegistry-setCategoryEnabled]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balm.adoc[balm]::xref:BloombergLP/balm/MetricRegistry.adoc[MetricRegistry]::setCategoryEnabled
:relfileprefix: ../../../
:mrdocs:

Set whether the specified `category` is enabled to the specified `value`. The behavior is undefined unless `category` is a valid address of a category previously returned by this metric registry. Note that this operation is thread‐safe, but _not_ atomic: Other threads may simultaneously access the current enabled value for `category` while this operation completes. Also note that this operation has _linear_ runtime performance with respect to the number of registered category holders for `category`.

== Synopsis

Declared in `<balm_metricregistry.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
setCategoryEnabled(
    xref:BloombergLP/balm/Category.adoc[Category] const* category,
    bool value);
----


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