fork(6) download 
  1. #include <iostream>
  2. #include <array>
  3. #include <memory>
  4.  
  5. class Base {
  6.     public:
  7.     	virtual ~Base() {
  8.             std::cout << "Base destroyed\n";
  9.     	}
  10.  
  11.         virtual void hello() { 
  12.             std::cout << "This shouldn't print\n";
  13.         }
  14. };
  15.  
  16. class Child1 : public Base {
  17.     public:
  18.     	~Child1() override {
  19.             std::cout << "Child1 destroyed\n";
  20.     	}
  21.  
  22.         void hello() override {
  23.             std::cout << "Hi from child 1!\n";
  24.         }
  25. };
  26.  
  27. class Child2 : public Base {
  28.     public:
  29.     	~Child2() override {
  30.             std::cout << "Child2 destroyed\n";
  31.     	}
  32.  
  33.         void hello() override {
  34.             std::cout << "Hi from child 2!\n";
  35.         }
  36. };
  37.  
  38. int main() {
  39.     std::array<std::unique_ptr<Base>, 2> array = {
  40.         std::make_unique<Child1>(),
  41.         std::make_unique<Child2>()
  42.     };
  43.  
  44.     for (auto &i : array) {
  45.         i->hello();
  46.     }
  47. }
Success #stdin #stdout 0s 5512KB
comments (?)
stdin 
Standard input is empty
stdout 
Hi from child 1!
Hi from child 2!
Child2 destroyed
Base destroyed
Child1 destroyed
Base destroyed
https://ideone.com/744WrQ
language:
C++ 4.3.2 (gcc-4.3.2)
created:
3 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!