Provided by: libstdc++-9-doc_9.5.0-3ubuntu1_all
NAME
std::experimental::any - A type-safe container of any type.
SYNOPSIS
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. _GLIBCXX_NODISCARD 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. 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 __other.empty() (this postcondition is a GNU extension) 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
template<typename _Tp > static constexpr bool std::experimental::any::__is_valid_cast () [inline], [static], [constexpr] Definition at line 284 of file any. void std::experimental::any::clear () [inline], [noexcept] If not empty, destroy the contained object. Definition at line 227 of file any. _GLIBCXX_NODISCARD bool std::experimental::any::empty () const [inline], [noexcept] Reports whether there is a contained object or not. Definition at line 269 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. any & std::experimental::any::operator= (any && __rhs) [inline], [noexcept] Move assignment operator. Postcondition __rhs.empty() (not guaranteed for other implementations) Definition at line 201 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. 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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