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  1. #include <iostream>
  2. #include <list>
  3. #include <memory>
  4. #include <typeinfo>
  5. using namespace std;
  6.  
  7.  
  8. class Abstract
  9. {
  10.   public:
  11.     virtual string toString() const = 0;
  12.     virtual shared_ptr<Abstract> clone() const= 0; 
  13. };
  14.  
  15. class A : public Abstract
  16. {
  17.   public:
  18.     A(int a, int b) : a(a), b(b)
  19.     {}
  20.     string toString() const override { return "A"; }
  21.     shared_ptr<Abstract> clone() const override { return make_shared<A>(*this); } 
  22.  
  23.   private:
  24.     int a;
  25.     int b;
  26. };
  27. class B : public Abstract
  28. {
  29.   public:
  30.     B(int b) : b(b)
  31.     {}
  32.     string toString() const { return "B"; }
  33.     shared_ptr<Abstract> clone() const override { return make_shared<B>(*this); } 
  34.   private:
  35.     int b;
  36. };
  37.  
  38. class Data
  39. {
  40.   public:
  41.     Data(const string & name) : name (name) 
  42.     {}
  43.     Data& AddData ( const Abstract & a )
  44.     {
  45.         //Need to fix next line
  46.         l1.push_back(a.clone());
  47.         return (*this);   
  48.     }
  49.     void show() const {
  50.     	for (auto& x: l1) 
  51.     	    cout << x->toString()<<"("<< typeid(*x).name()<<") ";
  52.     	 cout <<endl; 
  53.     }
  54.   private:
  55.     list<shared_ptr<Abstract>> l1;
  56.     string name;
  57. };
  58.  
  59. int main() {
  60. 	Data test("Random Name");
  61.  
  62.     test.AddData(A(1,2)) 
  63.         .AddData(B(3))
  64.         .AddData(B(4));
  65.     test.show(); 
  66.  
  67. 	return 0;
  68. }
Success #stdin #stdout 0s 15240KB
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A(1A) B(1B) B(1B)
https://ideone.com/X4tDHg
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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