[#bitset_detail-IntBitSet-None]
= xref:bitset_detail.adoc[bitset&lowbar;detail]::xref:bitset_detail/IntBitSet.adoc[IntBitSet]::None
:relfileprefix: ../../
:mrdocs:

Check if all bits are 0&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
None() const noexcept;
----

== Return Value

true if no bit is set&period;


[.small]#Created with https://www.mrdocs.com[MrDocs]#
