[#btcsignals-signal-2constructor-02]
= xref:btcsignals.adoc[btcsignals]::xref:btcsignals/signal.adoc[signal]::signal
:relfileprefix: ../../
:mrdocs:

Construct an empty signal with no connected callbacks&period;

== Synopsis

Declared in `&lt;util&sol;btcsignals&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
signal() noexcept = default;
----


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