ranges::optional< T > Struct Template Reference

Inheritance diagram for ranges::optional< T >:

Public Types
using	value_type = meta::_t<std::remove_cv<T>>

Public Member Functions
	CPP_assert (destructible< T >)
constexpr	optional (nullopt_t) noexcept
	optional (optional const &)=default
	optional (optional &&)=default
	template (typename E, typename... Args)() const expr explicit optional(in_place_t
std::initializer_list< E > Args &&args	noexcept (std::is_nothrow_constructible< T, std::initializer_list< E > &, Args... >::value)
	template (typename U=T)(AND(!same_as< detail
	template (typename U=T)(AND(!same_as< detail
	template (typename U)(AND const ructible_from< T
U const &AND convertible_to< U const &, T >	optional (optional< U > const &that)
	template (typename U)(AND const ructible_from< T
U const &	AND (!convertible_to< U const &, T >)) explicit optional(optional< U > const &that)
	template (typename U)(AND const ructible_from< T
U AND convertible_to< U, T >	optional (optional< U > &&that)
	template (typename U)(AND const ructible_from< T
U	AND (!convertible_to< U, T >)) explicit optional(optional< U > &&that)
constexpr optional &	operator= (nullopt_t) noexcept
optional &	operator= (optional const &)=default
optional &	operator= (optional &&)=default
	template (typename U=T)(AND(!(satisfies< T
std::is_scalar &&same_as< T, detail::decay_t< U > > AND constructible_from< T, U > AND assignable_from< T &, U > constexpr optional &	operator= (U &&u) noexcept(std::is_nothrow_constructible< T, U >::value &&std::is_nothrow_assignable< T &, U >::value)
	template (typename U)(AND const ructible_from< T
const U &AND assignable_from< T &, const U & > constexpr optional &	operator= (optional< U > const &that)
	template (typename U)(AND const ructible_from< T
U AND assignable_from< T &, U > constexpr optional &	operator= (optional< U > &&that)
	template (typename I)() T &emplace_deref(const I &it)
	template (typename... Args)() T &emplace(Args &&... args) noexcept(std::is_nothrow_constructible< T, Args... >::value)
	template (typename E, typename... Args)() T &emplace(std
constexpr	operator bool () const noexcept
constexpr T const &	value () const &
constexpr T &	value () &
constexpr T const &&	value () const &&
constexpr T &&	value () &&
	template (typename U)(AND convertible_to< U
T constexpr T	value_or (U &&u) const &
	template (typename U)(AND convertible_to< U
T constexpr T	value_or (U &&u) &&

Public Attributes
std::initializer_list< E >	il

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

• 3rd_party/range-v3/range/v3/utility/optional.hpp