std::experimental::any::empty

 

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

 

bool empty() const;		(library fundamentals TS)

Checks whether the object contains a value.

Parameters

(none)

Return value

true if instance is empty, otherwise false.

Exceptions

noexcept specification:  

noexcept