std::experimental::fundamentals_v1::optional< _Tp > Class Template Reference

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

Public Types
using	value_type = _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)
void &&	noexcept (swap(declval< _Tp & >(), declval< _Tp & >())))
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)
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_destruct ()
constexpr _Tp &	_M_get () noexcept
constexpr const _Tp &	_M_get () const noexcept
constexpr bool	_M_is_engaged () const noexcept
void	_M_reset ()

Private Attributes
_Empty_byte	_M_empty
this	_M_engaged
_Stored_type	_M_payload
	void

Detailed Description

template<typename _Tp>
class std::experimental::fundamentals_v1::optional< _Tp >

Class template for optional values.

Definition at line 82 of file optional.

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

• optional