#include <iostream>
#include <cstdlib>
using namespace std;

const int date_length[] = {
	 0,   //dummy element so that January will have subscript 1
	31,   //January
	28,   //February
	31,   //March
	30,   //April
	31,   //May
	30,   //June
	31,   //July
	31,   //August
	30,   //September
	31,   //October
	30,   //November
	31    //December
};

struct date {
	int year;
	int month;   //1 to 12 inclusive
	int day;     //1 to date_length[month] inclusive
};               //Version 3 will need this semicolon, too.

void next(date *p, int count);
void next(date *p);
void print(const date *p);

int main()
{
	date d = {2014, 1, 1};   //curly braces around initial values

	cout << "How many days forward from ";
	print(&d);
	cout << " do you want to go? ";

	int count;               //uninitialized variable
	cin >> count;

	next(&d, count);
	cout << "The new date is ";
	print(&d);
	cout << ".\n";
	return EXIT_SUCCESS;
}

void next(date *p, int count)
{
	//Call the one-argument next (line 59) count times.
	//Pass along the pointer we received.

	while (--count >= 0) {
		next(p);
	}
}

void next(date *p)
{
	//Move to the next date.
	if (++p->day > date_length[p->month]) {
		p->day = 1;
		if (++p->month > 12) {
			p->month = 1;
			++p->year;
		}
	}
}

void print(const date *p)
{
	//cout << (*p).month << "/" << (*p).day << "/" << (*p).year;
	cout << p->month << "/" << p->day << "/" << p->year;
}