[#bsl-bitset-none]
= xref:bsl.adoc[bsl]::xref:bsl/bitset.adoc[bitset]::none
:relfileprefix: ../../
:mrdocs:

Return `true` if all the bits in this bitset has the value of 0 and `false` otherwise&period; Note that `all()` and `none()` are both true for bitsets of size 0&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;bitset&period;h&gt;`

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


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