C++ 遍历智能指针 vector

Question

我有一个具有此功能的类:

typedef boost::shared_ptr<PrimShapeBase> sp_PrimShapeBase; 



class Control{
     public:
         //other functions
         RenderVectors(SDL_Surface*destination, sp_PrimShapeBase);
     private:
         //other vars
          vector<sp_PrimShapeBase> LineVector;

};

//the problem of the program

void Control::RenderVectors(SDL_Surface*destination, sp_PrimShapeBase){
    vector<sp_PrimShapeBase>::iterator i;

    //iterate through the vector
    for(i = LineVector.begin(); i != LineVector.end(); i ++ ){
      //access a certain function of the class PrimShapeBase through the smart
      //pointers
      (i)->RenderShape(destination); 

    }
}

编译器告诉我类 boost::shared_ptr没有名为“RenderShape”的成员，自从PrimShapeBase 类当然具有该功能，但位于不同的头文件中。这是什么原因？

Answer 1

你不是说

(*i)->RenderShape(destination); 

?

i 是迭代器，*i 是shared_ptr，(*i​​)::operator->() 是对象。