std::uses_allocator<std::function>
std::uses_allocator<std::function>
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
(C++11) | checks if the specified type supports uses-allocator construction (class template) |
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