egg.h

压缩包里有教材<<C++模式设计-基于QT4开源跨平台开发框架>>所有源码

#ifndef EGG_H
#define EGG_H
//start
class Chicken; /* Forward class declaration */
class Egg {
 public:
    Chicken* getParent(); /* Okay in declarations if they are pointers */ 
};
//end
#endif        //  #ifndef EGG_H