原文1:geeksforgeeks.org/stack 原文2:geeksforgeeks.org/excep 异常中的栈展开 "栈展开"指的是在运行时从函数调用栈中移除一条函数的过程。进行栈展开时,被移除的函数的局部变量将以和创建它们时相反的顺序被逐个销毁。 栈展开通常与异常处理相关。 C++ 程序当出现异常时,C++ 会顺着当前的调用栈逐个函数寻找...
在C++编程中，异常处理与栈展开紧密相连。当程序出现异常时，异常处理机制会沿着当前函数调用栈逆序执行，直至找到合适的异常处理程序。这一过程中，所有未处理异常的函数被从调用栈移除，即发生了栈展开。此操作实质上是按照创建顺序逆向销毁自动对象，自动对象通常为函数作用域内创建的局部变量。自动对象在函...
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ABSTRACTSohaib MustafaWen ZhangMuhammad Mateen Naveed
这也是OpenStack最致命的问题，灵活性较差，无法及时完成迭代更新。也因此，国内市场的OpenStack开源创业公司基本以失败告终，最后都沦落为高级人力外包的公司。从运维成本和后期维护的问题出发，OpenStack确实不是做公有云的一个最优的选择。所以，近几年，市场上多数云计算企业都转向了转向了AWS、Azure、阿里云等自主...