[#BloombergLP-bsls-AtomicUint64-swap]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/AtomicUint64.adoc[AtomicUint64]::swap
:relfileprefix: ../../../
:mrdocs:

Atomically set the value of this object to the specified `swapValue` and return its previous value.

== Synopsis

Declared in `<bsls_atomic.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bsls/Types/Uint64.adoc[Types::Uint64]
swap(xref:BloombergLP/bsls/Types/Uint64.adoc[Types::Uint64] swapValue);
----


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