Inheritance diagram for std::experimental::fundamentals_v1::optional< _Tp >:

Public Member Functions
template<typename... _Args>
void	emplace (_Args &&...__args)

template<typename _Up , typename... _Args>
enable_if_t< is_constructible< _Tp, initializer_list< _Up > &, _Args &&... >::value >	emplace (initializer_list< _Up > __il, _Args &&...__args)

constexpr	operator bool () const noexcept

constexpr const _Tp &	operator* () const &

constexpr _Tp &	operator* ()&

constexpr _Tp &&	operator* ()&&

constexpr const _Tp &&	operator* () const &&

constexpr const _Tp *	operator-> () const

_Tp *	operator-> ()

optional &	operator= (nullopt_t) noexcept

template<typename _Up >
enable_if_t< is_same< _Tp, decay_t< _Up > >::value, optional & >	operator= (_Up &&__u)

void	swap (optional &__other) noexcept(is_nothrow_move_constructible< _Tp >() &&noexcept(swap(declval< _Tp & >(), declval< _Tp & >())))

constexpr const _Tp &	value () const &

constexpr _Tp &	value ()&

constexpr _Tp &&	value ()&&

constexpr const _Tp &&	value () const &&

template<typename _Up >
constexpr _Tp	value_or (_Up &&__u) const &

template<typename _Up >
_Tp	value_or (_Up &&__u)&&

Private Member Functions
void	_M_construct (_Args &&...__args) noexcept(is_nothrow_constructible< _Stored_type, _Args... >())

void	_M_destruct ()

constexpr _Tp &	_M_get () noexcept

constexpr const _Tp &	_M_get () const noexcept

constexpr bool	_M_is_engaged () const noexcept

void	_M_reset ()

Detailed Description

Class template for optional values.

Definition at line 82 of file optional.

The documentation for this class was generated from the following file:

Public Types