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  1. #include <iostream>
  2. #include <memory>
  3. #include <tuple>
  4.  
  5.  
  6. struct Dynamic
  7. {
  8.     virtual ~Dynamic() {}
  9. };
  10.  
  11. template<typename A, typename B>
  12. struct Generic : Dynamic
  13. {
  14.     Generic()
  15.     {
  16.         std::cout << __PRETTY_FUNCTION__ << std::endl;
  17.     }
  18. };
  19.  
  20.  
  21. template<typename A, typename B>
  22. std::unique_ptr<Dynamic> Make()
  23. {
  24.     return std::unique_ptr<Dynamic>(new Generic<A, B>());
  25. }
  26.  
  27.  
  28. template<typename A>
  29. std::unique_ptr<Dynamic> Make(char b)
  30. {
  31.     switch (b)
  32.     {
  33.         case 'i':
  34.         {
  35.             return Make<A, int>();
  36.         }
  37.         case 'u':
  38.         {
  39.             return Make<A, unsigned>();
  40.         }
  41.         default: throw 0;
  42.     }
  43. }
  44.  
  45.  
  46. std::unique_ptr<Dynamic> Make(char a, char b)
  47. {
  48.     switch (a)
  49.     {
  50.         case 'i':
  51.         {
  52.             return Make<int>(b);
  53.         }
  54.         case 'u':
  55.         {
  56.             return Make<unsigned>(b);
  57.         }
  58.         default: throw 0;
  59.     }
  60. }
  61.  
  62.  
  63. int main()
  64. {
  65.     Make('i', 'i');
  66.     Make('i', 'u');
  67.     Make('u', 'i');
  68.     Make('i', 'i');
  69. }
Success #stdin #stdout 0s 3064KB
comments (?)
stdin 
Standard input is empty
stdout 
Generic<A, B>::Generic() [with A = int, B = int]
Generic<A, B>::Generic() [with A = int, B = unsigned int]
Generic<A, B>::Generic() [with A = unsigned int, B = int]
Generic<A, B>::Generic() [with A = int, B = int]
https://ideone.com/OHfOaa
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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