[#BloombergLP-bsls-SpinLock-2constructor-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/SpinLock.adoc[SpinLock]::SpinLock
:relfileprefix: ../../../
:mrdocs:

Create a `SpinLock` object in the unlocked state. Note that this is provided to allow for a syntax that was necessary in C++03, but is no longer necessary.

== Synopsis

Declared in `<bsls_spinlock.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
SpinLock(xref:BloombergLP/bsls/SpinLock_MemberInitializer.adoc[SpinLock_MemberInitializer] const&);
----


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