C++

参考

<memory>

weak_ptr

类模板
<memory>

std::weak_ptr

template <class T> class weak_ptr;
Weak shared pointer
[under construction

模板参数

T
The type of the weakly managed object, aliased as member typeelement_type.

成员类型

以下别名是...的成员类型weak_ptr.

成员类型定义说明
element_typeTemplate parameter (T)The type of the weakly managed object

成员函数

（构造函数）
Construct weak_ptr (public member function)
(析构函数)
Destroy weak_ptr (public member function)
operator=
weak_ptr 赋值 (public member function)
swap
交换内容 (公开成员函数)
重置
Reset pointer (public member function)
use_count
Use count (public member function)
expired
Check if expired (public member function)
lock
Lock and restore weak_ptr (public member function)
owner_before
基于所有者的排序 (public member function template)

非成员函数

Overloads:
swap
Exchange content of weak_ptr objects (function template)

另见

shared_ptr
共享指针 (类模板)
owner_less
基于所有权的“小于”操作 (类模板)