[#BloombergLP-bsls-AtomicUint64-operator_dec-06]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/AtomicUint64.adoc[AtomicUint64]::operator&hyphen;&hyphen;
:relfileprefix: ../../../
:mrdocs:

Atomically decrement the value of this object by 1 and return the value prior to being decremented&period;

== Synopsis

Declared in `&lt;bsls&lowbar;atomic&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bsls/Types/Uint64.adoc[Types::Uint64]
operator&hyphen;&hyphen;(int postfix);
----

== Return Value

value of this object prior to the operation

== Parameters

[cols="1,4"]
|===
| Name| Description
| *postfix*
| unused parameter distinguishing the postfix operator
|===


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