std::uses_allocator<std::function>
Defined in header <functional> | | |
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template< class R, class... ArgTypes, class Alloc > struct uses_allocator<std::function<R(ArgTypes...)>, Alloc> : std::true_type { }; | | (since C++11) (until C++17) |
这种专业化std::uses_allocator通知其他库组件所有类型的对象std::function支撑用途分配器构造，即使它们没有嵌套的allocator_type...
继承自STD：积分[医]常量
成员常数
value static | true (public static member constant) |
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成员函数
operator bool | converts the object to bool, returns value (public member function) |
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operator() (C++14) | returns value (public member function) |
成员类型
Type | Definition |
|---|---|
value_type | bool |
type | std::integral_constant<bool, value> |
另见
uses_allocator (C++11) | checks if the specified type supports uses-allocator construction (class template) |
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