Manpages - std_experimental_any.3

Table of Contents

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.

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 90 of file experimental/any.

Constructor & Destructor Documentation

std::experimental::any::any ()= [inline]=, = [noexcept]=

Default constructor, creates an empty object.

Definition at line 129 of file experimental/any.

std::experimental::any::any (const any & __other)= [inline]=

Copy constructor, copies the state of __other.

Definition at line 132 of file experimental/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 149 of file experimental/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 166 of file experimental/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 179 of file experimental/any.

std::experimental::any::~any ()= [inline]=

Destructor, calls clear()

Definition at line 188 of file experimental/any.

Member Function Documentation

template<typename _Tp > static constexpr bool

std::experimental::any::__is_valid_cast ()= [inline]=, = [static]=, = [constexpr]= Definition at line 287 of file experimental/any.

void std::experimental::any::clear ()= [inline]=, = [noexcept]=

If not empty, destroy the contained object.

Definition at line 230 of file experimental/any.

bool std::experimental::any::empty () const= [inline]=, = [noexcept]=

Reports whether there is a contained object or not.

Definition at line 272 of file experimental/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 221 of file experimental/any.

any & std::experimental::any::operator= (any &&

__rhs)= [inline]=, = [noexcept]= Move assignment operator.

Postcondition

__rhs.empty() (not guaranteed for other implementations)

Definition at line 204 of file experimental/any.

any & std::experimental::any::operator= (const any &

__rhs)= [inline]= Copy the state of another object.

Definition at line 193 of file experimental/any.

void std::experimental::any::swap (any & __rhs)= [inline]=,

= [noexcept]= Exchange state with another object.

Definition at line 240 of file experimental/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 276 of file experimental/any.

Author

Generated automatically by Doxygen for libstdc++ from the source code.

Author: dt

Created: 2022-02-21 Mon 14:46