C++

參考

<ios>

ios_base

public member function
<ios> <iostream>

std::ios_base::~ios_base

virtual ~ios_base();
Destruct object
Before the object is destroyed, all callback functions registered with member register_callback are called with erase_event as first argument.

資料競爭

物件被修改。

異常安全

無異常保證： 絕不丟擲異常。