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  1. #include <stdio.h>
  2.  
  3. struct Vector2
  4. {
  5.   float X, Y;
  6. };
  7.  
  8. struct Vector3
  9. {
  10.   float x, y, z;
  11. };
  12.  
  13. struct Space2
  14. {
  15.   typedef Vector2 Vector;
  16. };
  17.  
  18. struct Space3
  19. {
  20.   typedef Vector3 Vector;
  21. };
  22.  
  23. template<typename T>
  24. struct Overload{};
  25.  
  26. template<typename Space>
  27. struct Body
  28. {
  29.   typename Space::Vector v;
  30.  
  31.   void Print(Overload<Space2>);
  32.   void Print(Overload<Space3>);
  33.   void Print();
  34. };
  35.  
  36. template<typename Space>
  37. void Body<Space>::Print(Overload<Space2>)
  38. {
  39.   printf("%f", v.X);
  40. }
  41. template<typename Space>
  42. void Body<Space>::Print(Overload<Space3>)
  43. {
  44.   printf("%f", v.x);
  45. }
  46.  
  47. template<typename Space>
  48. void Body<Space>::Print()
  49. {
  50.   Print(Overload<Space>());
  51. }
  52.  
  53. int main()
  54. {
  55.   Body<Space2> body;
  56.   body.Print();
  57.   return 0;
  58. };
Success #stdin #stdout 0s 3340KB
comments (?)
stdin 
Standard input is empty
stdout 
0.000000
https://ideone.com/3VsJ8F
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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