[#BloombergLP-bslma-SharedPtrRep-tryAcquireRef]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/SharedPtrRep.adoc[SharedPtrRep]::tryAcquireRef
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Atomically acquire a shared reference to the shared object referred to by this representation, if the number of shared references is greater than 0, and do nothing otherwise. Return `true` if the acquire succeeds, and `false` otherwise. The behavior is undefined unless `0 < numWeakReferences() || 0 < numReferences()`.

== Synopsis

Declared in `<bslma_sharedptrrep.h>`

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


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