[#absl-CharSet-empty]
= xref:absl.adoc[absl]::xref:absl/CharSet.adoc[CharSet]::empty
:relfileprefix: ../../
:mrdocs:

Tests whether the set is empty&period;

== Synopsis

Declared in `&lt;absl&sol;strings&sol;charset&period;h&gt;`

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

== Return Value

`true` if the set contains no characters&period;


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