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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. class Base {
  6. private:
  7.     int a;
  8. public:
  9.     Base(){}
  10.     Base( int a ) : a(a) { }
  11.  
  12.     Base& operator=(const Base& rhs) = delete;
  13.     Base(const Base& rhs) {}
  14.     void setA(int a){ this->a = a;}
  15.     int getA(){ return a;}
  16. };
  17.  
  18. class Derived : public Base {
  19. public:
  20.     int getB(){ return b;}
  21.     Derived(int b) :  b(b){}
  22.  
  23.  
  24.     Derived& operator=(const Derived& rhs){
  25.         this->b = rhs.b;
  26.     }
  27. private:
  28.     int b;
  29. };
  30.  
  31. int main() {
  32.     Base b(3);
  33.     Derived d(9);
  34.     d.setA(44);
  35.  
  36.     Derived cd = d;
  37.  
  38.  
  39.     cout << cd.getA() << " " <<  cd.getB() << endl;
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0s 3140KB
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https://ideone.com/DnuA0L
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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