[#absl-optional_ref-0c-as_optional]
= xref:absl.adoc[absl]::xref:absl/optional_ref-0c.adoc[optional_ref]::as_optional
:relfileprefix: ../../
:mrdocs:

Represents the `optional_ref` as a `std::optional`.

== Synopsis

Declared in `<absl/types/optional_ref.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename U = std::decay_t<T>>
constexpr
std::optional<U>
as_optional() const;
----

== Description

Incurs a copy when the `optional_ref` is non‐empty.

== Return Value

A `std::optional<U>` holding a copy of the value, or `nullopt`.


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