std::experimental::any(3) | Library Functions Manual | std::experimental::any(3) |
NAME
std::experimental::any - A type-safe container of any type.
SYNOPSIS
#include <any>
Public Member Functions
any () noexcept
Default constructor, creates an empty object. 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
(any &&__other) noexcept
Move constructor, transfer the state from __other. any (const
any &__other)
Copy constructor, copies the state of __other. ~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.
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. any &
operator= (any &&__rhs) noexcept
Move assignment operator. any & operator= (const any
&__rhs)
Copy the state of another 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.
Constructor & Destructor Documentation
std::experimental::any::any () [inline], [noexcept]
Default constructor, creates an empty object.
Referenced by operator=(), and operator=().
std::experimental::any::any (const any & __other) [inline]
Copy constructor, copies the state of __other.
References empty().
std::experimental::any::any (any && __other) [inline], [noexcept]
Move constructor, transfer the state from __other.
Postcondition
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.
References std::forward().
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.
std::experimental::any::~any () [inline]
Destructor, calls clear()
References clear().
Member Function Documentation
void std::experimental::any::clear () [inline], [noexcept]
If not empty, destroy the contained object.
References empty().
Referenced by ~any(), and operator=().
bool std::experimental::any::empty () const [inline], [noexcept]
Reports whether there is a contained object or not.
Referenced by any(), clear(), swap(), and type().
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.
References any(), and std::forward().
any & std::experimental::any::operator= (any && __rhs) [inline], [noexcept]
Move assignment operator.
Postcondition
References clear(), and std::forward().
any & std::experimental::any::operator= (const any & __rhs) [inline]
Copy the state of another object.
References any(), and std::forward().
void std::experimental::any::swap (any & __rhs) [inline], [noexcept]
Exchange state with another object.
References empty(), and std::forward().
const type_info & std::experimental::any::type () const [inline], [noexcept]
The typeid of the contained object, or typeid(void) if empty.
References empty(), and std::forward().
Author
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