std::uses_allocator<std::function>

 

C++

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std::function

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Helper classes

std::uses_allocator<std::function> (until C++17)

 

Defined in header <functional>
template< class R, class... ArgTypes, class Alloc > struct uses_allocator<std::function<R(ArgTypes...)>, Alloc> : std::true_type { };		(since C++11) (until C++17)

This specialization of std::uses_allocator informs other library components that all objects of type std::function support uses-allocator construction, even though they do not have a nested allocator_type.

Inherited from std::integral_constant

Member constants

value [static]

true (public static member constant)

Member functions

operator bool	converts the object to bool, returns value (public member function)
operator() (C++14)	returns value (public member function)

Member types

Type	Definition
value_type	bool
type	std::integral_constant<bool, value>

See also

uses_allocator (C++11)

checks if the specified type supports uses-allocator construction (class template)