std::swap(std::variant) (3) Linux Manual Page

std::swap(std::variant) – std::swap(std::variant)

Synopsis

Defined in header<variant>

    template <class... Types>
    (since C++ 17)

        void swap(variant<Types...> &lhs, variant<Types...> &rhs) noexcept(/* see below */);

Overloads the std::swap algorithm for std::variant. Effectively calls lhs.swap(rhs).
This overload only participates in overload resolution if is_move_constructible_v<T_i> and is_swappable_v<T_i> are both true for all T_i in Types…

Parameters

lhs, rhs – variant objects whose values to swap

Return value

(none)

Exceptions

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

Example

 This section is incomplete
 Reason: no example

See also

     swaps with another variant
swap (public member function)