[#beman-optional-optional-03-operator_assign-0b6]
= xref:beman.adoc[beman]::xref:beman/optional.adoc[optional]::xref:beman/optional/optional-03.adoc[optional]::operator=
:relfileprefix: ../../../
:mrdocs:

Assigns the contained value from `u,` destroying the old value if there

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class U = T>
constexpr
xref:beman/optional/optional-03.adoc[optional<T>]&
operator=(U&& u)
requires detail::enable_assign_forward<T, U>;
----

== Description

Assigns the contained value from `u`, destroying the old value if there was one.

== Return Value

optional&

== Template Parameters

[cols="1,4"]
|===
|Name|Description

| *U*
| The type of the value to assign.
|===

== Parameters

[cols="1,4"]
|===
|Name|Description

| *u*
| The value to assign.
|===


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