std::experimental::any(3) | Library Functions Manual | std::experimental::any(3) |
NAME¶
std::experimental::any - A type-safe container of any type.
SYNOPSIS¶
Public Member Functions¶
any () noexcept
Default constructor, creates an empty object. any (const any
&__other)
Copy constructor, copies the state of __other. any (any
&&__other) noexcept
Move constructor, transfer the state from __other.
template<typename _ValueType , typename _Tp = _Decay<_ValueType>,
typename _Mgr = _Manager<_Tp>, typename enable_if<
is_constructible< _Tp, _ValueType &&>::value, bool >::type
= true> any (_ValueType &&__value)
Construct with a copy of __value as the contained object.
template<typename _ValueType , typename _Tp = _Decay<_ValueType>,
typename _Mgr = _Manager<_Tp>, typename
enable_if<!is_constructible< _Tp, _ValueType &&>::value,
bool >::type = false> any (_ValueType &&__value)
Construct with a copy of __value as the contained object. ~any
()
Destructor, calls clear() void clear () noexcept
If not empty, destroy the contained object. bool empty () const
noexcept
Reports whether there is a contained object or not. any &
operator= (const any &__rhs)
Copy the state of another object. any & operator=
(any &&__rhs) noexcept
Move assignment operator. template<typename _ValueType >
enable_if_t<!is_same< any, decay_t<
_ValueType > >::value, any & > operator=
(_ValueType &&__rhs)
Store a copy of __rhs as the contained object. void swap
(any &__rhs) noexcept
Exchange state with another object. const type_info & type
() const noexcept
The typeid of the contained object, or typeid(void) if empty.
Static Public Member Functions¶
template<typename _Tp > static constexpr bool
__is_valid_cast ()
Friends¶
template<typename _Tp > enable_if_t<
is_object< _Tp >::value, void * > __any_caster (const
any *__any)
Detailed Description¶
A type-safe container of any type.
An any object's state is either empty or it stores a contained object of CopyConstructible type.
Definition at line 87 of file any.
Constructor & Destructor Documentation¶
std::experimental::any::any () [inline], [noexcept]¶
Default constructor, creates an empty object.
Definition at line 126 of file any.
std::experimental::any::any (const any & __other) [inline]¶
Copy constructor, copies the state of __other.
Definition at line 129 of file any.
std::experimental::any::any (any && __other) [inline], [noexcept]¶
Move constructor, transfer the state from __other.
Postcondition:
Definition at line 146 of file any.
template<typename _ValueType , typename _Tp = _Decay<_ValueType>, typename _Mgr = _Manager<_Tp>, typename enable_if< is_constructible< _Tp, _ValueType &&>::value, bool >::type = true> std::experimental::any::any (_ValueType && __value) [inline]¶
Construct with a copy of __value as the contained object.
Definition at line 163 of file any.
template<typename _ValueType , typename _Tp = _Decay<_ValueType>, typename _Mgr = _Manager<_Tp>, typename enable_if<!is_constructible< _Tp, _ValueType &&>::value, bool >::type = false> std::experimental::any::any (_ValueType && __value) [inline]¶
Construct with a copy of __value as the contained object.
Definition at line 176 of file any.
std::experimental::any::~any () [inline]¶
Destructor, calls clear()
Definition at line 185 of file any.
Member Function Documentation¶
void std::experimental::any::clear () [inline], [noexcept]¶
If not empty, destroy the contained object.
Definition at line 227 of file any.
bool std::experimental::any::empty () const [inline], [noexcept]¶
Reports whether there is a contained object or not.
Definition at line 269 of file any.
any& std::experimental::any::operator= (const any & __rhs) [inline]¶
Copy the state of another object.
Definition at line 190 of file any.
any& std::experimental::any::operator= (any && __rhs) [inline], [noexcept]¶
Move assignment operator.
Postcondition:
Definition at line 201 of file any.
template<typename _ValueType > enable_if_t<!is_same<any, decay_t<_ValueType> >::value, any&> std::experimental::any::operator= (_ValueType && __rhs) [inline]¶
Store a copy of __rhs as the contained object.
Definition at line 218 of file any.
void std::experimental::any::swap (any & __rhs) [inline], [noexcept]¶
Exchange state with another object.
Definition at line 237 of file any.
const type_info& std::experimental::any::type () const [inline], [noexcept]¶
The typeid of the contained object, or typeid(void) if empty.
Definition at line 273 of file any.
Author¶
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Fri May 24 2024 | libstdc++ |