#include <iostream>
#include <string>
#include <sstream>
using namespace std;

string concat( int i, char c, double d ) {
   stringstream ss;
   ss << i << '-' << c << '-' << d;
   return ss.str();
}

void main( void ) {
   string (*funcPtr)(int,char,double);
   funcPtr = &concat;
   funcPtr = concat;
   cout << "output is " << (*funcPtr)(123, '|', 4.56 ) << '\n';
}

// output is 123-|-4.56



#if 0

class A {
public:
   static string concat1( int i, char c, double d ) {
      stringstream ss;
      ss << i << '-' << c << '-' << d;
      return ss.str();
   }
   string concat2( int i, char c, double d ) {
      stringstream ss;
      ss << i << '-' << c << '-' << d;
      return ss.str();
}  };

void main( void ) {
   string (*funcPtr)(int,char,double);
   funcPtr = &A::concat1;
   cout << "output is " << (*funcPtr)(123, '|', 4.56 ) << '\n';

   string (A::*memFuncPtr)(int,char,double);
   memFuncPtr = &A::concat2;
   A  obj;
   cout << "output is " << (obj.*memFuncPtr)(456, '#', 78.9 ) << '\n';
}

// output is 123-|-4.56
// output is 456-#-78.9

#endif