[#beman-optional-optional-06-2constructor-0a3d]
= xref:beman.adoc[beman]::xref:beman/optional.adoc[optional]::xref:beman/optional/optional-06.adoc[optional<T&>]::optional
:relfileprefix: ../../../
:mrdocs:

Copy constructor.

== Synopsis

Declared in `<beman/optional/optional.hpp>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
optional(xref:beman/optional/optional-06.adoc[optional] const& rhs) noexcept = default;
----

== Description

Constructs an empty optional if the rhs is empty, otherwise constructs the stored value from the rhs.

== Parameters

[cols=2]
|===
| Name
| Description
| *rhs*
| The object to copy construct from
|===


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