NAME¶

std::experimental::function - std::experimental::function

Synopsis¶

Defined in header <experimental/functional>
template< class > (library fundamentals TS)
class function; /* undefined */
template< class R, class... Args > (library fundamentals TS)
class function<R(Args...)>

std::experimental::function is a modified version of std::function with support for
type-erased allocators.

Member types¶

Type Definition
allocator_type std::experimental::erased_type

Member functions¶

constructor constructs a new std::experimental::function instance
(public member function)
operator= assigns a new target
(public member function)
swap swaps the contents
(public member function)
retrieves a pointer to the memory resource used by this object
get_memory_resource to allocate memory
(public member function)

Non-member functions¶

std::experimental::swap(std::experimental::function) specializes the swap algorithm
(function template)
compares an
operator== std::experimental::function
operator!= with nullptr
(function template)

Helper classes¶

specializes the std::uses_allocator
std::uses_allocator<std::experimental::function> type trait
(class template specialization)

Members identical to std::function

Member types¶

Type Definition
result_type R
argument_type T if sizeof...(Args)==1 and T is the first and only type in
Args...
first_argument_type T1 if sizeof...(Args)==2 and T1 is the first of the two types
in Args...
second_argument_type T2 if sizeof...(Args)==2 and T2 is the second of the two types
in Args...

Member functions¶

destructor destroys a std::function instance
(public member function of std::function<R(Args...)>)
operator bool checks if a target is contained
(public member function of std::function<R(Args...)>)
operator() invokes the target
(public member function of std::function<R(Args...)>)

Target access¶

target_type obtains the typeid of the stored target
(public member function of std::function<R(Args...)>)
target obtains a pointer to the stored target
(public member function of std::function<R(Args...)>)