C / C++ / MFC

class B
{
public:
   virtual B & myFunc () { return *this; }
   virtual void SayMyName () { printf ("B"); }
};

class C : public B
{
public:
   virtual B &myFunc () { return *this; }
   virtual void SayMyName () { printf ("C"); }
}

main ()
{
   C c;
   B b = c.myFunc;
   b.SayMyName (); // prints B
}

class B
{
public:
   virtual B *myFunc () { return this; }
   virtual void SayMyName () { printf ("B"); }
};

class C : public B
{
public:
   virtual B *myFunc () { return this; }
   virtual void SayMyName () { printf ("B"); }
}

main ()
{
   C c;
   B *b = c.myFunc;
   b->SayMyName (); // prints C
}

#include < iostream >
using namespace std;

class B
{
protected:
	int b;
public:
	B(int b){this->b = b;}
	virtual void out(){cout << "hi frm B, data value is " << b << endl;}
};

class D1 : public  B
{
public:
	D1(int i):B(i){}
	virtual void out(){cout << "hi frm D1, data value is " << b << endl;}
};

class D2 : public B
{
public:
	D2(int i):B(i){}
	virtual void out(){cout << "hi frm D2, data value is " << b << endl;}
};

B * myFunc(int i)
{
	switch (i%3)
	{
	case 0:
		return new B(i);
	case 1:
		return new D1(i);
	case 2:
		return new D2(i);
	}
}

void main()
{
	B * p, *q;
	p= myFunc(5);
	q= myFunc(6);
	p->out();
	q->out();
}

sam_2009 wrote:

hi want to make a simple tic tac toe game...if anyone have this code .then please reply

CPallini wrote:

BTW you lost 100 man points for attempting to avoid pointers.

bijumanjeri wrote:

i want to
1. Sync my local machine time with any NTP server.

bijumanjeri wrote:

like forcefully sync with external NTPs.

bijumanjeri wrote:

Is there any APIs available for controlling the Windows Time Service?

bijumanjeri wrote:

i want to
1. Sync my local machine time with any NTP server.

RedSonja wrote:

When I hop into B it runs for a while until it tries to call mM.function. Then I get a buffer overrun.

RedSonja wrote:

So I googled and found this statement. "A void pointer cannot point to a class member in C++." Is my void pointer to B losing its internal objects along the way? Where can I find out more? Am I doing this in the wrong way?

RedSonja wrote:

Now I suppose the bug is inside B so I can concentrate there.