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  1. #include <iostream>
  2. #include <memory>
  3. using namespace std;
  4.  
  5. class Base{
  6. public:
  7.     virtual void do_something(int a) = 0;
  8.     virtual ~Base(){};
  9.  
  10. };
  11.  
  12. template<typename T>
  13. class Concrete : public Base{
  14.  
  15.     T _t;
  16. public:
  17.     Concrete(){};
  18.     virtual void do_something(int a);
  19.     virtual ~Concrete();
  20. };
  21.  
  22. template<typename T>
  23. void Concrete<T>::do_something(int a){
  24.     std::cout << a << std::endl;
  25. }
  26. template<typename T>
  27. Concrete<T>::~Concrete(){}
  28.  
  29. int main(int argc, char **argv) {
  30.  
  31.  
  32.     std::unique_ptr<Base> b(new Concrete<int>());
  33.     b->do_something(5);
  34. }
Success #stdin #stdout 0s 3472KB
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Standard input is empty
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5
https://ideone.com/0PNWN6
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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