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  1. #include <vector>
  2. #include <map>
  3. #include <string>
  4. #include <iostream>
  5.  
  6. class Base {
  7. 	int x;
  8. public:
  9. 	Base() {}
  10. 	virtual ~Base() {}
  11. 	virtual void displayx() {
  12. 		std::cout << x << "\n";
  13. 	}
  14. };
  15.  
  16. class Derived : public Base {
  17. };
  18.  
  19. typedef std::vector<Base*> Bases;
  20. typedef std::map<std::string, Bases> MyMap;
  21.  
  22. int main() {
  23. 	Base* tanuki = new Derived;
  24.  
  25. 	MyMap myMap;
  26. 	MyMap::iterator it = myMap.find("racoon");
  27. 	if (it == myMap.end())
  28. 		myMap["racoon"].push_back(tanuki);
  29. 	else
  30. 		it->second.push_back(tanuki);
  31.  
  32.     // print displayx on all elements of racoon
  33.     it = myMap.find("racoon");
  34.     if (it != myMap.end()) {
  35.     	Bases::iterator end = it->second.end();
  36.     	for (Bases::iterator cur = it->second.begin(); cur != end; ++cur)
  37.     	    (*cur)->displayx();
  38.     }
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 3416KB
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https://ideone.com/su89GU
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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