C ++继承模板类 [英] C++ inherit template class

问题描述

我有一个模板类

$ b。我有一个特殊的请求，希望不会太过分。
$ b

 模板< class T> class Packable 
 {
 public：
 //打包< class T> （Packet<< T）
 virtual sf :: Packet& operator<<（sf :: Packet& p）const = 0; 
 friend sf :: Packet& operator<<（sf :: Packet& p，const T& t）; 
 friend sf :: Packet& operator<<（sf :: Packet& p，const T * t）; 
 
 
 //将分组打包到< class T> （T  virtual T operator<<（sf :: Packet& p）const = 0; 
 friend T& operator<<（T& t，sf :: Packet& p）; 
 friend T * operator<<（T * t，sf :: Packet& p）; 
 
 //将包解包到< class T> （Packet> T）
 virtual sf :: Packet& operator>>（sf :: Packet& p）const = 0; 
 friend sf :: Packet& operator>>（sf :: Packet& p，T&;）; 
 friend sf :: Packet& operator>>（sf :: Packet& p，T * t）; 
}; 
  

，我想要使用

  class Player：public Packable 
 {
 // ... 
} 
  

现在，Player现在有所有的操作符重载了。

get 期望的类名作为编译错误。有没有办法完成这个而不需要指定类？也就是说;如何可包装拾取玩家为< class T>

我想你想要的东西像下面这样：

  class Player：public Packable< Player> 
 / ... ... 
  

I've got a peculiar request, hopefully it's not too far fetched and can be done.

I've got a template class

    template<class T> class Packable
    {
    public:
        // Packs a <class T> into a Packet (Packet << T)
        virtual sf::Packet& operator <<(sf::Packet& p) const = 0;
        friend sf::Packet& operator <<(sf::Packet& p, const T &t);
        friend sf::Packet& operator <<(sf::Packet& p, const T *t);


        // Packs a Packet into a <class T> (T << Packet)
        virtual T operator <<(sf::Packet& p) const = 0;
        friend T& operator <<(T &t, sf::Packet& p);
        friend T* operator <<(T *t, sf::Packet& p);

        // Unpacks a Packet into a <class T> (Packet >> T)
        virtual sf::Packet& operator >>(sf::Packet& p) const = 0;
        friend sf::Packet& operator >>(sf::Packet& p, T &);
        friend sf::Packet& operator >>(sf::Packet& p, T* t);
    };

and I want to be able to use it something like

class Player : public Packable
{
    //...
}

Such that Player now has all of those operators overloaded for it.

As of now, I get Expected class name as a compile error. Is there a way to accomplish this without needing to specify the class? That is to say; how can Packable pick up Player as <class T> when I inherit it?

解决方案

I guess you want something like the following:

class Player: public Packable<Player>
    //...

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