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.
| value
[static] | true (public static member constant) |
| operator bool | converts the object to bool, returns value (public member function) |
| operator()
(C++14) | returns value (public member function) |
| Type | Definition |
|---|---|
value_type | bool |
type | std::integral_constant<bool, value> |
|
(C++11) | checks if the specified type supports uses-allocator construction (class template) |
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