[#BloombergLP-bslmt-Sluice-enter]
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Enter this sluice, and return the token on which the calling thread must subsequently wait&period; The behavior is undefined unless `wait` or `timedWait` is invoked with the token before this sluice is destroyed&period;

== Synopsis

Declared in `&lt;bslmt&lowbar;sluice&period;h&gt;`

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


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