Hello,
I need to use pointer to members and retrieve the value (a double) that these members should return. But I have a compile error:
Qt Code: 
  1. #include <vector>
  2. class B {
  3. 	double _mean, _mean2;
  4. 	enum { cnt = 2 };
  5. public:
  6. 	double (B::*fptr[cnt])(void) const;
  7. 	B() {
  8. 		fptr[0] = &B::getMean;
  9. 		fptr[1] = &B::getMean2;
  10. 	}
  11. 	double getMean() const { return _mean; }
  12. 	double getMean2() const { return _mean2; }
  13. };
  14.  
  15. class A {
  16. public:
  17. 	std::vector<B> _vec;
  18.  
  19. };
  20. //main.cpp
  21. 	B objB;
  22. 	A objA;
  23. 	double db = objA._vec.at(0).fptr[0]; //here error; doens't B::mean() return a double?
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Qt Code: 
  1. //error:
  2.  error C2440: 'initializing' : cannot convert from 'double (__thiscall B::* )(void) const' to 'double'
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Maybe i', using it in a wrong way.....how can I do this thing, please?