1.3 KiB
1.3 KiB
[complex.tuple]
29 Numerics library [numerics]
29.4 Complex numbers [complex.numbers]
29.4.9 Tuple interface [complex.tuple]
`template struct tuple_size<complex> : integral_constant<size_t, 2> {};
template<size_t I, class T> struct tuple_element<I, complex> { using type = T; }; `
Mandates: I < 2 is true.
template<size_t I, class T> constexpr T& get(complex<T>& z) noexcept; template<size_t I, class T> constexpr T&& get(complex<T>&& z) noexcept; template<size_t I, class T> constexpr const T& get(const complex<T>& z) noexcept; template<size_t I, class T> constexpr const T&& get(const complex<T>&& z) noexcept;
Mandates: I < 2 is true.
Returns: A reference to the real part of z if I == 0 is true, otherwise a reference to the imaginary part of z.