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  1. #include <iostream>
  2.  
  3. class Hoge{
  4.    Hoge(){std::cout<<"new"<<std::endl;}
  5.    Hoge(Hoge const &);
  6.    Hoge& operator=(Hoge const &);
  7.    ~Hoge(){std::cout<<"del"<<std::endl;}
  8. public:
  9.    static Hoge* Create(){return new Hoge();}
  10.    static void Delete(Hoge* p){delete p;}
  11.    void f(){std::cout<<"f"<<std::endl;}
  12.    void f()const{std::cout<<"f const"<<std::endl;}
  13. };
  14.  
  15. class HogePtr{
  16.    Hoge* p;
  17.    HogePtr(const HogePtr&);
  18.    HogePtr& operator=(const HogePtr&);
  19. public:
  20.    HogePtr(Hoge* ap):p(ap){}
  21.    ~HogePtr(){Hoge::Delete(p);}
  22.    Hoge& operator*(){return *p;}
  23.    const Hoge& operator*() const {return *p;}
  24.    Hoge* operator->(){return p;}
  25.    const Hoge* operator->() const{return p;}
  26. };
  27.  
  28. int main(){
  29.   HogePtr p(Hoge::Create());
  30.   p->f();
  31.  
  32.   const HogePtr p2(Hoge::Create());
  33.   p2->f();
  34.  
  35.   return 0;
  36. }
Success #stdin #stdout 0.02s 2812KB
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https://ideone.com/nwdwv
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
secret

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