std::swap(std::weak_ptr)

 

C++

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std::weak_ptr

成员函数

weak_ptr::weak_ptr

weak_ptr::~weak_ptr

weak_ptr::operator=

修改器

weak_ptr::reset

weak_ptr::swap

观察器

weak_ptr::use_count

weak_ptr::expired

weak_ptr::lock

weak_ptr::owner_before

weak_ptr::owner_hash (C++26)

weak_ptr::owner_equal (C++26)

非成员函数

swap(std::weak_ptr)

辅助类

atomic<std::weak_ptr> (C++20)

推导指引(C++17)

 

在标头 <memory> 定义
template< class T > void swap( std::weak_ptr<T>& lhs, std::weak_ptr<T>& rhs ) noexcept;		(C++11 起)

对 std::weak_ptr 特化 std::swap 算法。交换 lhs 与 rhs 的内容。调用 lhs.swap(rhs)。

参数

lhs, rhs

-

要交换内容的智能指针

返回值

（无）

复杂度

常数

示例

cpp/memory/weak ptr/swap2/example

参阅

swap	交换两个对象的值 (函数模板)
swap	交换内容 (公开成员函数)