[#util-SignalInterrupt-operator_call]
= xref:util.adoc[util]::xref:util/SignalInterrupt.adoc[SignalInterrupt]::operator()
:relfileprefix: ../../
:mrdocs:

Requests an interrupt; safe to call from a signal handler.

== Synopsis

Declared in `<util/signalinterrupt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
bool
operator()();
----

== Return Value

true on success, false if the interrupt could not be signalled

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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