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std::shared_lock<Mutex>:: operator bool

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std::shared_lock
explicit operator bool ( ) const noexcept ;
(自 C++14 起)

检查 * this 是否拥有已锁定的互斥量。实际调用 owns_lock() 。

参数

(无)

返回值

若 * this 关联了互斥量且已获得其共享所有权，则为 true ；否则为 false 。

参见

测试锁是否拥有其关联的互斥量
(公开成员函数)