C++

參考

<mutex>

recursive_mutex

public member function
<mutex>

std::recursive_mutex::~recursive_mutex

~recursive_mutex();
Destroy recursive mutex
Destroys the recursive_mutex object.

If the object is locked on destruction, it causes undefined behavior.

異常安全

如果未鎖定，則永遠不會丟擲異常（無丟擲保證）。
否則，未定義行為。