[#BloombergLP-bsls-BslOnceGuard-leave]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/BslOnceGuard.adoc[BslOnceGuard]::leave
:relfileprefix: ../../../
:mrdocs:

Exit the one‐time block of code. The behavior is undefined unless the caller had previously called `enter`, and `enter` had returned `true`.

== Synopsis

Declared in `<bsls_bslonce.h>`

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


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