std::experimental::ranges::tagged::swap

constexpr void swap(tagged& rhs) noexcept(/* see below */) requires Swappable<Base>;

Swap the contents of *this and rhs, as if by ranges::swap(static_cast<Base&>(*this), static_cast<Base&>(rhs));.

noexcept specification:

noexcept(noexcept(ranges::swap(std::declval<Base&>(), std::declval<Base&>())))

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