std::swap(std::tuple)

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

​

(since C++11)

This function does not participate in overload resolution unless std::is_swappable<Ti>::value is true for all i from 0 to sizeof...(Types).

(since C++17)

lhs, rhs

-

tuples whose contents to swap