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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. class Foo {
  6. public:
  7.   template <typename Type> Type get();
  8.  
  9. private:
  10.   int value = 10;
  11. };
  12.  
  13. template <> int Foo::get() { return value; }
  14. template <> string Foo::get() { return to_string(value); }
  15.  
  16. class Bar {
  17. public:
  18.   template <typename Type> Type get();
  19.  
  20. private:
  21.   int value = 15;
  22. };
  23.  
  24. template <> int Bar::get() { return value; }
  25. template <> string Bar::get() { return to_string(value); }
  26.  
  27. class Elo {
  28. public:
  29.   template <typename Type, typename F> Type get();
  30.  
  31. private:
  32.   Foo foo;
  33.   Bar bar;
  34. };
  35.  
  36. template <> int Elo::get<int, Foo>() { return foo.get<int>(); }
  37. template <> string Elo::get<string, Foo>() { return foo.get<string>(); }
  38. template <> int Elo::get<int, Bar>() { return bar.get<int>(); }
  39. template <> string Elo::get<string, Bar>() { return bar.get<string>(); }
  40.  
  41. int main() {
  42.   Elo e;
  43.   cout << e.get<int, Foo>() << endl;
  44.   cout << e.get<int, Bar>() << endl;
  45.   cout << e.get<string, Foo>() << endl;
  46.   cout << e.get<string, Bar>() << endl;
  47.   // cout<<e.get<int,Elo>()<<endl; blad kompilacji
  48.   return 0;
  49. }
Success #stdin #stdout 0s 3416KB
comments (?)
stdin
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Standard input is empty
stdout
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10
15
10
15
https://ideone.com/BBm0MV
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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