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

This `typedef` is an alias to `std::nullopt_t`.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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using nullopt_t = std::nullopt_t;
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