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  1. #include <map>
  2. #include <vector>
  3. #include <iostream>
  4.  
  5. // Forward declarations needed for defining the global functions.
  6. class typeX;
  7. class typeY;
  8.  
  9. // Global functions with call by pointer (or reference) to avoid copying objects.
  10. void func(const typeX*) { std::cout << "::func(const typeX&)" << std::endl; }
  11. void func(const typeY*) { std::cout << "::func(const typeY&)" << std::endl; }
  12.  
  13. // Abstract base class.
  14. class Base {
  15. public:
  16.     virtual void func() = 0;
  17. };
  18.  
  19. void Base::func() {};
  20.  
  21. // Derived class as replacement for your original typeX.
  22. class typeX : public Base {
  23. public:
  24.     void func() { std::cout << "typeX::func()" << std::endl; ::func(this); };
  25.     int i;  // Example for your original 'typeX' content.
  26. };
  27.  
  28. // Derived class as replacement for your original typeY.
  29. class typeY : public Base {
  30. public:
  31.     void func() { std::cout << "typeY::func()" << std::endl; ::func(this); };
  32.     std::string s;  // Example for your original 'typeY' content.
  33. };
  34.  
  35. int main() {
  36.     typeX A, B;
  37.     typeY Z, Y;
  38.  
  39.     std::map<std::string, Base*> map;
  40.     map["a"] = &A;
  41.     map["z"] = &Z;
  42.  
  43.     std::vector<std::string> list { "a", "z" };
  44.     for (auto const &list_item : list)
  45.         map[list_item]->func();
  46.  
  47. 	return 0;
  48. }
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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typeX::func()
::func(const typeX&)
typeY::func()
::func(const typeY&)
https://ideone.com/U13IDn
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
secret

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