std::swap(std::variant)
std::swap(std::variant)
Defined in header <variant> | ||
|---|---|---|
template <class... Types> void swap(variant<Types...>& lhs, variant<Types...>& rhs) noexcept(/* see below */); | (since C++17) |
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
See also
| swaps with another variant (public member function) |
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