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  1. #include <iostream>
  2. #include <map>
  3. #include <functional>
  4.  
  5. struct A
  6. {
  7.     virtual void f() = 0;
  8. };
  9.  
  10. struct B : public A
  11. {
  12.     void f() { std::cout << "B::f\n"; }
  13. };
  14.  
  15. struct C : public A
  16. {
  17.     void f() { std::cout << "C::f\n"; }
  18. };
  19.  
  20. B* getB() { return new B; }
  21. C* getC() { return new C; }
  22.  
  23. int main()
  24. {
  25.     std::map<std::string, std::function<A*()>> m;
  26.     m["b"] = getB;
  27.     m["c"] = getC;
  28.  
  29.     m["b"]()->f();
  30.     m["c"]()->f();
  31. }
  32.  
Success #stdin #stdout 0s 3068KB
comments (?)
stdin
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Standard input is empty
stdout
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B::f
C::f
https://ideone.com/Jj6bMP
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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