Public Member Functions¶

constexpr any () noexcept
Default constructor, creates an empty object. template<typename _Tp , typename _VTp = _Decay_if_not_any<_Tp>, typename _Mgr = _Manager<_VTp>, enable_if_t< is_copy_constructible_v< _VTp > &&!__is_in_place_type_v< _VTp >, bool > = true> any (_Tp &&__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. template<typename _Tp , typename... _Args, typename _VTp = decay_t<_Tp>, typename _Mgr = _Manager<_VTp>, __any_constructible_t< _VTp, _Args &&... > = false> any (in_place_type_t< _Tp >, _Args &&... __args)
Construct with an object created from __args as the contained object. template<typename _Tp , typename _Up , typename... _Args, typename _VTp = decay_t<_Tp>, typename _Mgr = _Manager<_VTp>, __any_constructible_t< _VTp, initializer_list< _Up > &, _Args &&... > = false> any (in_place_type_t< _Tp >, initializer_list< _Up > __il, _Args &&... __args)
Construct with an object created from __il and __args as the contained object. ~any ()
Destructor, calls reset() template<typename _Tp , typename... _Args> __emplace_t< decay_t< _Tp >, _Args... > emplace (_Args &&... __args)
Emplace with an object created from __args as the contained object. template<typename _Tp , typename _Up , typename... _Args> __emplace_t< decay_t< _Tp >, initializer_list< _Up > &, _Args &&... > emplace (initializer_list< _Up > __il, _Args &&... __args)
Emplace with an object created from __il and __args as the contained object. bool has_value () const noexcept
Reports whether there is a contained object or not. template<typename _Tp > enable_if_t< is_copy_constructible< _Decay_if_not_any< _Tp > >::value, any & > operator= (_Tp &&__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 reset () noexcept
If not empty, destroy 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.

constexpr std::any::any () [inline], [constexpr], [noexcept]¶

Default constructor, creates an empty object.

std::any::any (const any & __other) [inline]¶

Copy constructor, copies the state of __other.

std::any::any (any && __other) [inline], [noexcept]¶

Move constructor, transfer the state from __other.

Postcondition

template<typename _Tp , typename _VTp = _Decay_if_not_any<_Tp>, typename _Mgr = _Manager<_VTp>, enable_if_t< is_copy_constructible_v< _VTp > &&!__is_in_place_type_v< _VTp >, bool > = true> std::any::any (_Tp && __value) [inline]¶

Construct with a copy of __value as the contained object.

template<typename _Tp , typename... _Args, typename _VTp = decay_t<_Tp>, typename _Mgr = _Manager<_VTp>, __any_constructible_t< _VTp, _Args &&... > = false> std::any::any (in_place_type_t< _Tp >, _Args &&... __args) [inline], [explicit]¶

Construct with an object created from __args as the contained object.

template<typename _Tp , typename _Up , typename... _Args, typename _VTp = decay_t<_Tp>, typename _Mgr = _Manager<_VTp>, __any_constructible_t< _VTp, initializer_list< _Up > &, _Args &&... > = false> std::any::any (in_place_type_t< _Tp >, initializer_list< _Up > __il, _Args &&... __args) [inline], [explicit]¶

Construct with an object created from __il and __args as the contained object.

std::any::~any () [inline]¶

Destructor, calls reset()

template<typename _Tp , typename... _Args> __emplace_t<decay_t<_Tp>, _Args...> std::any::emplace (_Args &&... __args) [inline]¶

Emplace with an object created from __args as the contained object.

template<typename _Tp , typename _Up , typename... _Args> __emplace_t<decay_t<_Tp>, initializer_list<_Up>&, _Args&&...> std::any::emplace (initializer_list< _Up > __il, _Args &&... __args) [inline]¶

Emplace with an object created from __il and __args as the contained object.

bool std::any::has_value () const [inline], [noexcept]¶

Reports whether there is a contained object or not.

template<typename _Tp > enable_if_t<is_copy_constructible<_Decay_if_not_any<_Tp> >::value, any&> std::any::operator= (_Tp && __rhs) [inline]¶

Store a copy of __rhs as the contained object.

any& std::any::operator= (any && __rhs) [inline], [noexcept]¶

Move assignment operator.

Postcondition

any& std::any::operator= (const any & __rhs) [inline]¶

Copy the state of another object.

void std::any::reset () [inline], [noexcept]¶

If not empty, destroy the contained object.

void std::any::swap (any & __rhs) [inline], [noexcept]¶

Exchange state with another object.

const type_info& std::any::type () const [inline], [noexcept]¶

The typeid of the contained object, or typeid(void) if empty.