[#bsl-bitset-count]
= xref:bsl.adoc[bsl]::xref:bsl/bitset.adoc[bitset]::count
:relfileprefix: ../../
:mrdocs:

Return the number of bits in this bitset that have the value of 1.

== Synopsis

Declared in `<bslstl_bitset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size_t
count() const noexcept;
----


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