NAME¶

std::experimental::any - std::experimental::any

Synopsis¶

Defined in header <experimental/any>
class any; (library fundamentals TS)

The class any describes a type-safe container for single values of any type.

1) An object of class any stores an instance of any type that satisfies the
constructor requirements or is empty, and this is referred to as the state of the
class any object. The stored instance is called the contained object. Two states are
equivalent if they are either both empty or if both are not empty and if the
contained objects are equivalent.
2) The non-member any_cast functions provide type-safe access to the contained
object.

Implementations are encouraged to avoid dynamic allocations for small objects, but
such an optimization may only be applied to types that for which
std::is_nothrow_move_constructible returns true.

Member functions¶

constructor constructs an any object
(public member function)
operator= assigns an any object
(public member function)
destructor destroys an any object
(public member function)

Modifiers¶

clear destroys contained object
(public member function)
swap swaps two any objects
(public member function)

Observers¶

empty checks if object holds a value
(public member function)
type returns the typeid of the contained value
(public member function)

Non-member functions¶

swap swaps two any instances
(function)
any_cast type-safe access to the contained object
(function template)

Helper classes¶

bad_any_cast exception thrown by the value-returning forms of any_cast
(library fundamentals TS) on a type mismatch
(class)