[#UniqueLock-reverse_lock-2constructor-0f]
= xref:UniqueLock.adoc[UniqueLock]::xref:UniqueLock/reverse_lock.adoc[reverse_lock]::reverse_lock
:relfileprefix: ../../
:mrdocs:

Unlock the wrapped lock, to be re‐locked when this object is destroyed.

== Synopsis

Declared in `<sync.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
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explicit
reverse_lock(
    xref:UniqueLock.adoc[UniqueLock]& _lock,
    MutexType const& mutex,
    char const* _guardname,
    char const* _file,
    int _line);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *_lock*
| Lock to temporarily release.
| *mutex*
| Original mutex, passed back for thread‐safety analysis.
| *_guardname*
| Name of the guard variable being reversed.
| *_file*
| Source file of the caller.
| *_line*
| Source line of the caller.
|===


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