[#BloombergLP-bslmt-ReaderWriterMutex-isLocked]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/ReaderWriterMutex.adoc[ReaderWriterMutex]::isLocked
:relfileprefix: ../../../
:mrdocs:

Return `true` if this reader‐write mutex is currently read locked or write locked, and `false` otherwise.

== Synopsis

Declared in `<bslmt_readerwritermutex.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isLocked() const;
----


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