optional< T & > Struct Template Reference

#include <optional.hpp>

Public Types
using	value_type = T &

Public Member Functions
constexpr	optional () noexcept=default
constexpr	optional (nullopt_t) noexcept
constexpr	optional (optional &&other) noexcept=default
constexpr	optional (optional const &other)=default
constexpr	~optional ()=default
template<typename U = T> requires (not is_same_v<remove_cvref_t<U>, optional>)
constexpr auto	emplace (U &&u) noexcept -> optional &
template<typename U > requires (not is_same_v<remove_cvref_t<U>, optional>)
constexpr	explicit (not is_convertible_v< U, T >) optional(optional< U > const &rhs)
template<typename U = T> requires (not is_same_v<remove_cvref_t<U>, optional>)
constexpr	explicit (not is_convertible_v< U, T >) optional(U &&v)
constexpr auto	has_value () const noexcept -> bool
constexpr	operator bool () const noexcept
constexpr auto	operator* () const noexcept -> T &
constexpr auto	operator-> () const noexcept -> T *
constexpr auto	operator= (nullopt_t) noexcept -> optional &
constexpr auto	operator= (optional &&) noexcept -> optional &=default
constexpr auto	operator= (optional const &) noexcept -> optional &=default
template<typename U >
constexpr auto	operator= (optional< U > const &rhs) -> optional &
template<typename U = T> requires (not is_same_v<remove_cvref_t<U>, optional> and not conjunction_v<is_scalar<T>, is_same<T, decay_t<U>>>)
constexpr auto	operator= (U &&v) -> optional &
constexpr void	reset () noexcept
constexpr void	swap (optional &rhs) noexcept

Member Typedef Documentation

value_type

template<typename T >

using value_type = T&

Constructor & Destructor Documentation

optional() [1/4]

template<typename T >

constexpr optional ( )

constexprdefaultnoexcept

optional() [2/4]

template<typename T >

constexpr optional ( nullopt_t  )

inlineconstexprnoexcept

optional() [3/4]

template<typename T >

constexpr optional ( optional< T & > const &  other )

constexprdefault

optional() [4/4]

template<typename T >

constexpr optional ( optional< T & > &&  other )

constexprdefaultnoexcept

~optional()

template<typename T >

constexpr ~optional ( )

constexprdefault

Member Function Documentation

emplace()

template<typename T >

template<typename U = T>
requires (not is_same_v<remove_cvref_t<U>, optional>)

constexpr auto emplace ( U &&  u ) -> optional&

inlineconstexprnoexcept

explicit() [1/2]

template<typename T >

template<typename U >
requires (not is_same_v<remove_cvref_t<U>, optional>)

constexpr explicit ( not is_convertible_v< U, T >  ) const &

inlineconstexpr

explicit() [2/2]

template<typename T >

template<typename U = T>
requires (not is_same_v<remove_cvref_t<U>, optional>)

constexpr explicit ( not is_convertible_v< U, T >  ) &&

inlineconstexpr

has_value()

template<typename T >

constexpr auto has_value ( ) const -> bool

inlineconstexprnoexcept

operator bool()

template<typename T >

constexpr operator bool ( ) const

inlineexplicitconstexprnoexcept

operator*()

template<typename T >

constexpr auto operator* ( ) const -> T&

inlineconstexprnoexcept

operator->()

template<typename T >

constexpr auto operator-> ( ) const -> T*

inlineconstexprnoexcept

operator=() [1/5]

template<typename T >

constexpr auto operator= ( nullopt_t  ) -> optional&

inlineconstexprnoexcept

operator=() [2/5]

template<typename T >

constexpr auto operator= ( optional< T & > &&  ) -> optional &=default

constexprdefaultnoexcept

operator=() [3/5]

template<typename T >

constexpr auto operator= ( optional< T & > const &  ) -> optional &=default

constexprdefaultnoexcept

operator=() [4/5]

template<typename T >

template<typename U >

constexpr auto operator= ( optional< U > const &  rhs ) -> optional&

inlineconstexpr

operator=() [5/5]

template<typename T >

template<typename U = T>
requires (not is_same_v<remove_cvref_t<U>, optional> and not conjunction_v<is_scalar<T>, is_same<T, decay_t<U>>>)

constexpr auto operator= ( U &&  v ) -> optional&

inlineconstexpr

reset()

template<typename T >

constexpr void reset ( )

inlineconstexprnoexcept

swap()

template<typename T >

constexpr void swap ( optional< T & > &  rhs )

inlineconstexprnoexcept

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

• include/etl/_optional/optional.hpp