26 template <class E>
29     explicit Unexpected(E e) noexcept(std::is_nothrow_move_constructible_v<E>) : e_(std::move(e)) {}  in Unexpected()  argument
31     const E &Value() const &noexcept  in Value()
35     E &Value() & noexcept  in Value()
39     E &&Value() && noexcept  in Value()
50     E e_;
64 // Expected with T or E for a reference type is ill-formed.
65 template <class T, class E>
76 …Expected(Unexpected<E> e) noexcept(std::is_nothrow_move_constructible_v<E>) : v_(std::move(e.Value…  in noexcept()  argument
87     const E &Error() const &noexcept(ExpectedConfig::RELEASE)  in Error()
90         return std::get<E>(v_);  in Error()
92     E &Error() & noexcept(ExpectedConfig::RELEASE)  in Error()
95         return std::get<E>(v_);  in Error()
97     E &&Error() && noexcept(ExpectedConfig::RELEASE)  in Error()
100         return std::move(std::get<E>(v_));  in Error()
156     std::variant<T, E> v_;