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  1. #include <stdio.h>
  2.  
  3. void func1(){
  4.     printf("func1\n");
  5. }
  6. void func2(){
  7.     printf("func2\n");
  8. }
  9. class TraitsBase{
  10. protected:
  11.     typedef void (*fptr)();
  12.     fptr ptr;
  13.     TraitsBase(fptr p) : ptr(p){}
  14. public:
  15.     void call(){
  16.         ptr();
  17.     }
  18. };
  19. template<class T> class Traits;
  20. template<> class Traits<int> : public TraitsBase{
  21. public:
  22.     Traits<int>() : TraitsBase(&func1){};
  23.  
  24. };
  25. template<> class Traits<float>: public TraitsBase{
  26. public:
  27.     Traits<float>() : TraitsBase(&func2){}
  28. };
  29. int main(){
  30.     Traits<int> i;
  31.     i.call();
  32.     Traits<float> f;
  33.     f.call();
  34.  
  35. }
Success #stdin #stdout 0.02s 2724KB
comments (?)
stdin 
Standard input is empty
stdout 
func1
func2
https://ideone.com/un1xqF
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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