gistfile1.cpp

#include <iostream>
#include <cassert>

using namespace std;

typedef unsigned long long uint64;

template<uint64 high, uint64 low>
class cookie
{
public:
	cookie()
	{
		High = high;
		Low = low;
	}
	
	void check()
	{
		cookie Cookie;
		assert(*this == Cookie);
	}
private:
	bool operator==(const cookie& RHS)
	{
		return (High == RHS.High) && (Low == RHS.Low);
	}
	uint64 High, Low;
};

typedef cookie<0xAABBCCDDAABBCCDD, 0x1122334455667788> foo_cookie;

class foo
{
public:
	void do_stuff()
	{
		Cookie.check();
		cout << "Foo doing stuff!\n";
	}
private:
	foo_cookie Cookie;
};


int main(int argc, char *argv[])
{	
	foo Foo;
	char stuff[128];
	
	foo* F1 = &Foo; //Pointer to an actual foo object
	foo* F2 = (foo*)stuff; //Pointer to what's definitely not an actual foo object
	
	F1->do_stuff();
	F2->do_stuff();
}