std::experimental::any::any

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

 

Experimental libraries

Experimental standard libraries

optional (library fundamentals TS)

any (library fundamentals TS)

basic_string_view (library fundamentals TS)

Polymorphic allocator library (library fundamentals TS)

Filesystem library (filesystem TS)

 

std::experimental::any

Member functions

any::any

any::operator=

Modifers

any::clear

any::swap

Observers

any::empty

any::type

Non-member functions

swap(std::experimental::any)

any_cast

 

any();	(1)	(library fundamentals TS)
any(const any& other);	(2)	(library fundamentals TS)
any(any&& other);	(3)	(library fundamentals TS)
template<typename ValueType>     any(ValueType&& value);	(4)	(library fundamentals TS)
template <class Allocator>     any(std::allocator_arg_t, const Allocator& a);	(5)	(library fundamentals TS)
template <class Allocator, typename ValueType>     any(std::allocator_arg_t, const Allocator& a, ValueType&& value);	(6)	(library fundamentals TS)
template <class Allocator>     any(std::allocator_arg_t, const Allocator& a, const any& other);	(7)	(library fundamentals TS)
template <class Allocator>     any(std::allocator_arg_t, const Allocator& a, any&& other);	(8)	(library fundamentals TS)

Constructs a new any object.

1) Constructs an empty object.

2-3) Copies (2) or moves (3) content of other into a new instance, so that any content is equivalent in both type and value to other, or empty if other is empty.

4) Constructs an object with initial content equivalent in both type and value to value.

5-8) Equivalent to the preceding constructors except that the stored value is constructed using the supplied allocator instance.

Template parameters

ValueType	-	contained value type
Allocator	-	Allocator type used to allocate internal storage
Type requirements
- ValueType must meet the requirements of CopyConstructible.
- Allocator must meet the requirements of Allocator.

Parameters

other	-	another any object to copy or move from
value	-	value to initialize the contained value with
a	-	instance of an allocator to use for allocating the contained value

Exceptions

1,3,5,8)

noexcept specification:  

noexcept

  

2,4,6,7) Throws bad_alloc or any exception thrown by the constructor of the contained type.

See also

operator=	assigns an any object (public member function)