[#common-SettingsSpan-empty]
= xref:common.adoc[common]::xref:common/SettingsSpan.adoc[SettingsSpan]::empty
:relfileprefix: ../../
:mrdocs:

Whether the span has no non&hyphen;negated values&period;

== Synopsis

Declared in `&lt;common&sol;settings&period;h&gt;`

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

== Return Value

True if there are no non&hyphen;negated values&period;


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