#include <optional.h>

Inheritance diagram for absl::optional< T >:

Public Types
typedef T	value_type

Public Member Functions
template<typename... Args, typename = typename std::enable_if< std::is_constructible<T, Args&&...>::value>::type>
T &	emplace (Args &&... args)

template<typename U , typename... Args, typename = typename std::enable_if<std::is_constructible< T, std::initializer_list<U>&, Args&&...>::value>::type>
T &	emplace (std::initializer_list< U > il, Args &&... args)

constexpr bool	has_value () const noexcept

constexpr	operator bool () const noexcept

constexpr const T &	operator* () const &

T &	operator* () &

constexpr const T &&	operator* () const &&

T &&	operator* () &&

const T *	operator-> () const

T *	operator-> ()

optional &	operator= (nullopt_t) noexcept

optional &	operator= (const optional &src)=default

optional &	operator= (optional &&src)=default

template<typename U = T, typename = typename std::enable_if<absl::conjunction< absl::negation< std::is_same<optional<T>, typename std::decay<U>::type>>, absl::negation< absl::conjunction<std::is_scalar<T>, std::is_same<T, typename std::decay<U>::type>>>, std::is_constructible<T, U>, std::is_assignable<T&, U>>::value>::type>
optional &	operator= (U &&v)

template<typename U , typename = typename std::enable_if<absl::conjunction< absl::negation<std::is_same<T, U>>, std::is_constructible<T, const U&>, std::is_assignable<T&, const U&>, absl::negation< optional_internal:: is_constructible_convertible_assignable_from_optional< T, U>>>::value>::type>
optional &	operator= (const optional< U > &rhs)

template<typename U , typename = typename std::enable_if<absl::conjunction< absl::negation<std::is_same<T, U>>, std::is_constructible<T, U>, std::is_assignable<T&, U>, absl::negation< optional_internal:: is_constructible_convertible_assignable_from_optional< T, U>>>::value>::type>
optional &	operator= (optional< U > &&rhs)

constexpr	optional () noexcept

constexpr	optional (nullopt_t) noexcept

	optional (const optional &src)=default

	optional (optional &&src)=default

template<typename InPlaceT , typename... Args, absl::enable_if_t< absl::conjunction< std::is_same< InPlaceT, in_place_t >, std::is_constructible< T, Args &&... > >::value > * = nullptr>
constexpr	optional (InPlaceT, Args &&... args)

template<typename U , typename... Args, typename = typename std::enable_if<std::is_constructible< T, std::initializer_list<U>&, Args&&...>::value>::type>
constexpr	optional (in_place_t, std::initializer_list< U > il, Args &&... args)

template<typename U = T, typename std::enable_if< absl::conjunction< absl::negation< std::is_same< in_place_t, typename std::decay< U >::type > >, absl::negation< std::is_same< optional< T >, typename std::decay< U >::type > >, std::is_convertible< U &&, T >, std::is_constructible< T, U &&> >::value, bool >::type = false>
constexpr	optional (U &&v)

template<typename U = T, typename std::enable_if< absl::conjunction< absl::negation< std::is_same< in_place_t, typename std::decay< U >::type >>, absl::negation< std::is_same< optional< T >, typename std::decay< U >::type >>, absl::negation< std::is_convertible< U &&, T >>, std::is_constructible< T, U &&>>::value, bool >::type = false>
constexpr	optional (U &&v)

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U > >, std::is_constructible< T, const U &>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U > >, std::is_convertible< const U &, T > >::value, bool >::type = false>
	optional (const optional< U > &rhs)

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U >>, std::is_constructible< T, const U &>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U >>, absl::negation< std::is_convertible< const U &, T >>>::value, bool >::type = false>
	optional (const optional< U > &rhs)

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U > >, std::is_constructible< T, U &&>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U > >, std::is_convertible< U &&, T > >::value, bool >::type = false>
	optional (optional< U > &&rhs)

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U >>, std::is_constructible< T, U &&>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U >>, absl::negation< std::is_convertible< U &&, T >>>::value, bool >::type = false>
	optional (optional< U > &&rhs)

ABSL_ATTRIBUTE_REINITIALIZES void	reset () noexcept

void	swap (optional &rhs) noexcept(std::is_nothrow_move_constructible< T >::value &&type_traits_internal::IsNothrowSwappable< T >::value)

constexpr const T &	value () const &

T &	value () &

T &&	value () &&

constexpr const T &&	value () const &&

template<typename U >
constexpr T	value_or (U &&v) const &

template<typename U >
T	value_or (U &&v) &&

	~optional ()=default

Private Types
using	data_base = optional_internal::optional_data< T >

Private Member Functions
constexpr const T &	reference () const

T &	reference ()

Detailed Description

template<typename T>
class absl::optional< T >

Definition at line 60 of file internal/optional.h.

Member Typedef Documentation

◆ data_base

template<typename T>

using absl::optional< T >::data_base = optional_internal::optional_data<T>

private

Definition at line 121 of file optional.h.

◆ value_type

template<typename T>

typedef T absl::optional< T >::value_type

Definition at line 124 of file optional.h.

Constructor & Destructor Documentation

◆ optional() [1/12]

template<typename T>

constexpr absl::optional< T >::optional ( )

inlinenoexcept

Definition at line 130 of file optional.h.

◆ optional() [2/12]

template<typename T>

constexpr absl::optional< T >::optional ( nullopt_t )

inlinenoexcept

Definition at line 133 of file optional.h.

◆ optional() [3/12]

template<typename T>

absl::optional< T >::optional ( const optional< T > & src )

default

◆ optional() [4/12]

template<typename T>

absl::optional< T >::optional ( optional< T > && src )

default

◆ optional() [5/12]

template<typename T>

template<typename InPlaceT , typename... Args, absl::enable_if_t< absl::conjunction< std::is_same< InPlaceT, in_place_t >, std::is_constructible< T, Args &&... > >::value > * = nullptr>

constexpr absl::optional< T >::optional	(	InPlaceT	,
		Args &&...	args
	)

inlineexplicit

Definition at line 149 of file optional.h.

◆ optional() [6/12]

template<typename T>

template<typename U , typename... Args, typename = typename std::enable_if<std::is_constructible< T, std::initializer_list&, Args&&...>::value>::type>

constexpr absl::optional< T >::optional	(	in_place_t	,
		std::initializer_list< U >	il,
		Args &&...	args
	)

inlineexplicit

Definition at line 159 of file optional.h.

◆ optional() [7/12]

template<typename T>

template<typename U = T, typename std::enable_if< absl::conjunction< absl::negation< std::is_same< in_place_t, typename std::decay::type > >, absl::negation< std::is_same< optional< T >, typename std::decay::type > >, std::is_convertible, std::is_constructible< T, U &&> >::value, bool >::type = false>

constexpr absl::optional< T >::optional ( U && v )

inline

Definition at line 175 of file optional.h.

◆ optional() [8/12]

template<typename T>

template<typename U = T, typename std::enable_if< absl::conjunction< absl::negation< std::is_same< in_place_t, typename std::decay::type >>, absl::negation< std::is_same< optional< T >, typename std::decay::type >>, absl::negation< std::is_convertible>, std::is_constructible< T, U &&>>::value, bool >::type = false>

constexpr absl::optional< T >::optional ( U && v )

inlineexplicit

Definition at line 188 of file optional.h.

◆ optional() [9/12]

template<typename T>

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U > >, std::is_constructible< T, const U &>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U > >, std::is_convertible< const U &, T > >::value, bool >::type = false>

absl::optional< T >::optional ( const optional & rhs )

inline

Definition at line 202 of file optional.h.

◆ optional() [10/12]

template<typename T>

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U >>, std::is_constructible< T, const U &>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U >>, absl::negation< std::is_convertible< const U &, T >>>::value, bool >::type = false>

absl::optional< T >::optional ( const optional & rhs )

inlineexplicit

Definition at line 219 of file optional.h.

◆ optional() [11/12]

template<typename T>

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U > >, std::is_constructible< T, U &&>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U > >, std::is_convertible >::value, bool >::type = false>

absl::optional< T >::optional ( optional && rhs )

inline

Definition at line 236 of file optional.h.

◆ optional() [12/12]

template<typename T>

template<typename U , typename std::enable_if< absl::conjunction< absl::negation< std::is_same< T, U >>, std::is_constructible< T, U &&>, absl::negation< optional_internal::is_constructible_convertible_from_optional< T, U >>, absl::negation< std::is_convertible>>::value, bool >::type = false>

absl::optional< T >::optional ( optional && rhs )

inlineexplicit

Definition at line 253 of file optional.h.

◆ ~optional()

template<typename T>

absl::optional< T >::~optional ( )

default

Member Function Documentation

◆ emplace() [1/2]

template<typename T>

template<typename... Args, typename = typename std::enable_if< std::is_constructible<T, Args&&...>::value>::type>

T& absl::optional< T >::emplace ( Args &&... args )

inline

Definition at line 354 of file optional.h.

◆ emplace() [2/2]

template<typename T>

template<typename U , typename... Args, typename = typename std::enable_if<std::is_constructible< T, std::initializer_list&, Args&&...>::value>::type>

T& absl::optional< T >::emplace	(	std::initializer_list< U >	il,
		Args &&...	args
	)

inline

Definition at line 374 of file optional.h.

◆ has_value()

template<typename T>

constexpr bool absl::optional< T >::has_value ( ) const

inlinenoexcept

Definition at line 455 of file optional.h.

◆ operator bool()

template<typename T>

constexpr absl::optional< T >::operator bool ( ) const

inlineexplicitnoexcept

Definition at line 449 of file optional.h.

◆ operator*() [1/4]

template<typename T>

constexpr const T& absl::optional< T >::operator* ( ) const &

inline

Definition at line 424 of file optional.h.

◆ operator*() [2/4]

template<typename T>

T& absl::optional< T >::operator* ( ) &

inline

Definition at line 427 of file optional.h.

◆ operator*() [3/4]

template<typename T>

constexpr const T&& absl::optional< T >::operator* ( ) const &&

inline

Definition at line 431 of file optional.h.

◆ operator*() [4/4]

template<typename T>

T&& absl::optional< T >::operator* ( ) &&

inline

Definition at line 434 of file optional.h.

◆ operator->() [1/2]

template<typename T>

const T* absl::optional< T >::operator-> ( ) const

inline

Definition at line 411 of file optional.h.

◆ operator->() [2/2]

template<typename T>

T* absl::optional< T >::operator-> ( )

inline

Definition at line 415 of file optional.h.

◆ operator=() [1/6]

template<typename T>

optional& absl::optional< T >::operator= ( nullopt_t )

inlinenoexcept

Definition at line 270 of file optional.h.

◆ operator=() [2/6]

template<typename T>

optional& absl::optional< T >::operator= ( const optional< T > & src )

default

◆ operator=() [3/6]

template<typename T>

optional& absl::optional< T >::operator= ( optional< T > && src )

default

◆ operator=() [4/6]

template<typename T>

template<typename U = T, typename = typename std::enable_if<absl::conjunction< absl::negation< std::is_same<optional<T>, typename std::decay::type>>, absl::negation< absl::conjunction<std::is_scalar<T>, std::is_same<T, typename std::decay::type>>>, std::is_constructible<T, U>, std::is_assignable<T&, U>>::value>::type>

optional& absl::optional< T >::operator= ( U && v )

inline

Definition at line 291 of file optional.h.

◆ operator=() [5/6]

template<typename T>

template<typename U , typename = typename std::enable_if<absl::conjunction< absl::negation<std::is_same<T, U>>, std::is_constructible<T, const U&>, std::is_assignable<T&, const U&>, absl::negation< optional_internal:: is_constructible_convertible_assignable_from_optional< T, U>>>::value>::type>

optional& absl::optional< T >::operator= ( const optional & rhs )

inline

Definition at line 305 of file optional.h.

◆ operator=() [6/6]

template<typename T>

template<typename U , typename = typename std::enable_if<absl::conjunction< absl::negation<std::is_same<T, U>>, std::is_constructible<T, U>, std::is_assignable<T&, U>, absl::negation< optional_internal:: is_constructible_convertible_assignable_from_optional< T, U>>>::value>::type>

optional& absl::optional< T >::operator= ( optional && rhs )

inline

Definition at line 322 of file optional.h.

◆ reference() [1/2]

template<typename T>

constexpr const T& absl::optional< T >::reference ( ) const

inlineprivate

Definition at line 521 of file optional.h.

◆ reference() [2/2]

template<typename T>

T& absl::optional< T >::reference ( )

inlineprivate

Definition at line 522 of file optional.h.

◆ reset()

template<typename T>

ABSL_ATTRIBUTE_REINITIALIZES void absl::optional< T >::reset ( )

inlinenoexcept

Definition at line 336 of file optional.h.

◆ swap()

template<typename T>

void absl::optional< T >::swap ( optional< T > & rhs )

inlinenoexcept

Definition at line 383 of file optional.h.

◆ value() [1/4]

template<typename T>

constexpr const T& absl::optional< T >::value ( ) const &

inline

Definition at line 469 of file optional.h.

◆ value() [2/4]

template<typename T>

T& absl::optional< T >::value ( ) &

inline

Definition at line 474 of file optional.h.

◆ value() [3/4]

template<typename T>

T&& absl::optional< T >::value ( ) &&

inline

Definition at line 479 of file optional.h.

◆ value() [4/4]

template<typename T>

constexpr const T&& absl::optional< T >::value ( ) const &&

inline

Definition at line 485 of file optional.h.

◆ value_or() [1/2]

template<typename T>

template<typename U >

constexpr T absl::optional< T >::value_or ( U && v ) const &

inline

Definition at line 500 of file optional.h.

◆ value_or() [2/2]

template<typename T>

template<typename U >

T absl::optional< T >::value_or ( U && v ) &&

inline

Definition at line 510 of file optional.h.

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

internal/optional.h

Public Types

Public Member Functions

Private Types

Private Member Functions

Detailed Description

template<typename T> class absl::optional< T >

Member Typedef Documentation

◆ data_base

◆ value_type

Constructor & Destructor Documentation

◆ optional() [1/12]

◆ optional() [2/12]

◆ optional() [3/12]

◆ optional() [4/12]

◆ optional() [5/12]

◆ optional() [6/12]

◆ optional() [7/12]

◆ optional() [8/12]

◆ optional() [9/12]

◆ optional() [10/12]

◆ optional() [11/12]

◆ optional() [12/12]

◆ ~optional()

Member Function Documentation

◆ emplace() [1/2]

◆ emplace() [2/2]

◆ has_value()

◆ operator bool()

◆ operator*() [1/4]

◆ operator*() [2/4]

◆ operator*() [3/4]

◆ operator*() [4/4]

◆ operator->() [1/2]

◆ operator->() [2/2]

◆ operator=() [1/6]

◆ operator=() [2/6]

◆ operator=() [3/6]

◆ operator=() [4/6]

◆ operator=() [5/6]

◆ operator=() [6/6]

◆ reference() [1/2]

◆ reference() [2/2]

◆ reset()

◆ swap()

◆ value() [1/4]

◆ value() [2/4]

◆ value() [3/4]

◆ value() [4/4]

◆ value_or() [1/2]

◆ value_or() [2/2]

template<typename T>
class absl::optional< T >