std::reference_wrapper3

Public Types

typedef _Tp type

Public Member Functions

template<typename _Up, typename = __not_same<_Up>, typename = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr reference_wrapper (_Up &&__uref) noexcept(noexcept(reference_wrapper::_S_fun(std::declval< _Up >())))
reference_wrapper (const reference_wrapper &)=default
constexpr _Tp & get () const noexcept
constexpr operator _Tp & () const noexcept
template<typename... _Args> constexpr __invoke_result< _Tp &, _Args... >::type operator() (_Args &&... __args) const noexcept(__is_nothrow_invocable< _Tp &, _Args... >::value)
reference_wrapper & operator= (const reference_wrapper &)=default

Friends

constexpr auto operator<=> (reference_wrapper __x, const _Tp &__y)
constexpr auto operator<=> (reference_wrapper __x, reference_wrapper __y)
constexpr auto operator<=> (reference_wrapper __x, reference_wrapper< const _Tp > __y)
constexpr bool operator== (reference_wrapper __x, const _Tp &__y)
constexpr bool operator== (reference_wrapper __x, reference_wrapper __y)
constexpr bool operator== (reference_wrapper __x, reference_wrapper< const _Tp > __y)

Related Symbols

(Note that these are not member symbols.)

template<typename _Tp> constexpr reference_wrapper< _Tp > ref (_Tp &__t) noexcept
Denotes a reference should be taken to a variable. template<typename _Tp> constexpr reference_wrapper< const _Tp > cref (const _Tp &__t) noexcept
Denotes a const reference should be taken to a variable. template<typename _Tp> constexpr reference_wrapper< _Tp > ref (reference_wrapper< _Tp > __t) noexcept
std::ref overload to prevent wrapping a reference_wrapper template<typename _Tp> constexpr reference_wrapper< const _Tp > cref (reference_wrapper< _Tp > __t) noexcept
std::cref overload to prevent wrapping a reference_wrapper