[#beman-optional-optional-03-swap]
= xref:beman.adoc[beman]::xref:beman/optional.adoc[optional]::xref:beman/optional/optional-03.adoc[optional]::swap
:relfileprefix: ../../../
:mrdocs:

Swaps this optional with the other.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
void
swap(xref:beman/optional/optional-03.adoc[optional]& rhs) noexcept(std::is_nothrow_move_constructible<T>::value && std::is_nothrow_swappable<T>::value);
----

== Description

Swaps this optional with the other.

If neither optionals have a value, nothing happens. If both have a value, the values are swapped. If one has a value, it is moved to the other and the movee is left valueless.


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