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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4. class B{};
  5. class C : public B{};
  6. template <class T>
  7. class A {
  8.     public:
  9.         A(T * p) : ptr(p) {}
  10.         A & operator = ( A & p){
  11.             swap (p.ptr, ptr );
  12.             return *this;
  13.         }
  14.         void pr(){cout<<*ptr<<endl;}
  15.     private:
  16.         T * ptr;
  17.         int ai;
  18. };
  19. int main(){
  20.     int a=5;
  21.     int *p1=&a;
  22.     //A <B> pa2(new C);
  23.     A <int *> pa1 (new int *(p1 ));
  24.     // pa1.pr();
  25.     A<int> aob1(p1);
  26.     aob1.pr();
  27.     int b=6;
  28.     int *p2=&b;
  29.     A<int> aob2(p2);
  30.     aob2.pr();
  31.     aob2=aob1;
  32.     aob2.pr();
  33. }
Success #stdin #stdout 0s 4432KB
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Standard input is empty
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5
6
5
https://ideone.com/4U6pLS
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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