[#btcsignals-null_value]
= xref:btcsignals.adoc[btcsignals]::null&lowbar;value
:relfileprefix: ../
:mrdocs:

The default combiner, which only returns void&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class null&lowbar;value;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:btcsignals/null_value/result_type.adoc[`result&lowbar;type`] 
| The result type produced by this combiner, which is always void&period;
|===



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