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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. struct A {
  6.     virtual ~A() {}
  7.     virtual void test() { cout << "A" << endl; }
  8. };
  9. struct B : A {
  10.     void test() { cout << "B" << endl; }
  11. };
  12. struct C : B {
  13.     C() : ip(new int()) {}
  14.     ~C() { delete ip; }
  15.     void test() { cout << "C" << *ip << endl; }
  16.     int * ip;
  17. };
  18.  
  19. int main() {
  20.     A* a = new A;
  21.     A* b = new B;
  22.     B* c = new C;
  23.  
  24.     a->test();
  25.     b->test();
  26.     c->test();
  27.  
  28.     delete a;
  29.     delete b;
  30.     delete c;
  31. }
  32.  
Success #stdin #stdout 0.01s 2812KB
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stdin
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Standard input is empty
stdout
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A
B
C0
https://ideone.com/b6cSV6
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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