NAME¶

swap(std::expected) - swap(std::expected)

Synopsis¶

friend constexpr void swap( expected& lhs, expected& rhs ) (since C++23)
noexcept(/*see below*/);

Overloads the std::swap algorithm for std::expected. Exchanges the state of lhs with
that of rhs. Effectively calls lhs.swap(rhs).

This overload participates in overload resolution only if lhs.swap(rhs) is valid.

This function is not visible to ordinary unqualified or qualified lookup, and can
only be found by argument-dependent lookup when std::expected<T, E> is an associated
class of the arguments.

Parameters¶

lhs, rhs - expected objects whose states to swap

Return value¶

(none)

Exceptions¶

noexcept specification:
noexcept(noexcept(lhs.swap(rhs)))

Example¶

This section is incomplete
Reason: no example

See also¶

swap exchanges the contents
(public member function)

Categories:¶

* conditionally noexcept
* Todo no example