[#std-unique_lock-0d]
= xref:std.adoc[std]::unique_lock<Mutex>
:relfileprefix: ../
:mrdocs:

Deduces `std::unique_lock` when adopting existing lock state.

== Synopsis

Declared in `<folly/synchronization/Lock.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename Mutex,
    typename S>
unique_lock<Mutex>(
    Mutex&,
    xref:folly/adopt_lock_state_t.adoc[folly::adopt_lock_state_t],
    S) -> unique_lock<Mutex>;
----


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