fork download 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class scope{
  5.   public:
  6.   virtual void draw() = 0;
  7. };
  8. class circle:public scope{
  9.   public:
  10.   void draw(){cout<<"draw circle.";}
  11. };
  12. class triangle:public scope{
  13.   public:
  14.   void draw(){cout<<"draw triangle.";}
  15. };
  16. class geoobj{
  17.   public:
  18.   geoobj(scope* _obj){_obj->draw();}
  19. };
  20.  
  21. int main(){
  22.   geoobj test(new circle());
  23.   geoobj test2(new triangle());
  24.   return 0;
  25. }
Success #stdin #stdout 0.01s 2812KB
comments (?)
stdin 
Standard input is empty
stdout 
draw circle.draw triangle.
https://ideone.com/dx8pYg
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!