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  1. #include <iostream>
  2. #include <map> // or <unordered_map>
  3. #include <string>
  4.  
  5. class C{
  6. public:
  7.     C* linked1;
  8.     C* linked2;
  9.  
  10.     std::map<std::string, double> values; // or std::unordered_map
  11.  
  12.     C(double d1, double d2) {
  13.         values["d1"] = d1;
  14.         values["d2"] = d2;
  15.     }
  16.  
  17.     double add(const std::string& name) const {
  18.         return linked1->values.at(name) + linked2->values.at(name) + values.at(name);
  19.     }
  20. };
  21.  
  22.  
  23. int main() {
  24. 	C c1{1., 2.};
  25. 	C c2{3., 4.};
  26. 	C c3{5., 6.};
  27.  
  28. 	c1.linked1 = &c2;
  29. 	c1.linked2 = &c3;
  30.  
  31. 	double a1 = c1.add("d1");
  32. 	double a2 = c1.add("d2"); 
  33.  
  34. 	std::cout << a1 << std::endl;
  35. 	std::cout << a2 << std::endl;
  36.  
  37. 	return 0;
  38. }
Success #stdin #stdout 0.01s 5436KB
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https://ideone.com/ox3ZO4
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
secret

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