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  1. #include<iostream>
  2. using namespace std;
  3. class a
  4. {
  5. public:
  6.     void add(int x)
  7.     {
  8.         cout<<x+x<<endl;
  9.     }
  10.     void mult(int x)
  11.     {
  12.         cout<<x*x<<endl;
  13.     }
  14.     typedef void (a::*fptr)(int);
  15.     fptr retFuncP(char ch)
  16.     {
  17.         if(ch=='+')
  18.         {
  19.             return &a::add;
  20.         }
  21.         else
  22.         {
  23.             return &a::mult;
  24.         }
  25.     }
  26. };
  27. int main()
  28. {
  29.     a objA;
  30.     void (a::*fptr)(int) = objA.retFuncP('+');
  31.     (objA.*fptr)(3);
  32.     cin.ignore();
  33. }
Success #stdin #stdout 0s 3300KB
comments ()
stdin 
Standard input is empty
stdout 
6
https://ideone.com/kT98vp
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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