[#AnnotatedMixin-03-lock]
= xref:AnnotatedMixin-03.adoc[AnnotatedMixin]::lock
:relfileprefix: ../
:mrdocs:

Lock the underlying mutex.

== Synopsis

Declared in `<sync.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[acquire_capability]]
void
lock();
----


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