struct mystruct using this_class = mystruct; old typedef such as: also does not work this_class(){}此代码在visual C++但是拥有一个this_class类型定义是非常有用的,因为它允许通过简单地调整
使用this_
我有一个想要在运行时实例化的插件类列表,但是我得到了Cannot use 'new' with an expression whose type lacks a call or construct signature如果我为要扩展的东西声明一个基类,就会发生这种情况 say() { return "dogsays woof"; }
class Cat extends