#include <iostream>
#include "family.h"
using namespace std;

inline void add(const void *& p, ptrdiff_t diff) {
	p = static_cast<const char *>(p) + diff;
}

void print(const mother *m)
{
	const void *p = m;
	cout << "\nThis mother starts at address " << p << ".\n";

	const ptrdiff_t *const pd =
		*reinterpret_cast<const ptrdiff_t *const *>(p);
	const ptrdiff_t diff = *pd;

	cout << p << ": " << pd << " (pointer to table)\n"
		<< pd << ": " << diff << " (offset)\n";

	add(p, sizeof (ptrdiff_t **));

	cout << p << ": " << *reinterpret_cast<const int *>(p)
		<< " (mother::j)\n";

	add(p, sizeof (int));

	cout << p << " is the address of the first byte after the mother.\n"
		<< "The mother's grandparent starts at address " << p;

	if (diff < 1000) {
		cout << " + " << diff << " == ";
		add(p, diff);
		cout << p;
	}

	cout << ".\n"
		<< p << ": " << *reinterpret_cast<const int *>(p)
		<< " (grandparent::i)\n";
}