gistfile1.cpp

/*
 * Function pointers and classes
 * The program works correctly by printing 5 with the "Dont want to do this" lines
 * Need to get the program working without the "Dont want to do this" lines
 * */
#include<stdio.h>

class A
{
	public:
	
	void trial();
	
	void log(int a)
	{
		printf("%d" , a);
	}
};

class B
{
	public:
	
	void (*logger)(int);
	//void (A::*logger)(int);   -- Dont want to do this
	
	void set_handler(void (*functocall)(int))
	//void set_handler(void (A::*functocall)(int)) -- Dont want to do this
	{
		logger = functocall;
	}
	
	void test()
	{
		(*logger)(5);	//Giving strange output - 4196190 , it should give 5 instead
		//(*((A*)this).*logger)(5);  -- Dont want to do this
	}
};

void A::trial()
{
	B bb;
	bb.set_handler( (void (*)(int)) &A::log);
	bb.test();
}


int main()
{
	A aa;
	aa.trial();
}