carsowners.cpp

#include "stdafx.h"
#include <iostream>
#include <string>
#include <set>

class person;

class car
{
private:
	std::string model, vin;
	std::set<person *> owners;
public:
	void setModel(std::string model_)
	{ model = model_; }
	std::string getModel() const
	{ return model; }
	void setVin(std::string vin_)
	{ vin = vin_; }
	std::string getVin() const
	{ return vin; }

	car(std::string vin, std::string model, person *owner_)
	{
		this->vin = vin;
		this->model = model;
		owners.insert(owner_);
	}

	void addOwner(person *newOwner);
	void removeOwner(person *Name)
	{ owners.erase(Name); }
	size_t getOwnersCount() const
	{ return owners.size(); }
};

class person {
	std::string name;
	std::set<car *> cars;

	void actualAddCar(car &car) { /* изменить cars */ }
	friend class car;
public:
	person(const std::string &name) { /* ... */ }

	std::string getName() const
	{ return name; }
	void addCar(car &car)
	{ /* вызывать actualAddCar(); вызвать car.actualAddOwner(); */ }
	void removeCar(car &car)
	{ /* ... */ }

	size_t getCarCount() const
	{ return cars.size(); }
};

void car::addOwner(person *newOwner)
{ newOwner->actualAddCar(*this); /* ... */ }

int main(int argc, char* argv[])
{
	person* persons[] = {
		new person("Ivan Ivanov"),
		new person("Ivanka Ivanova")
	};

	car* cars[] = {
		new car("123456", "Zaporozhec", persons[0]),
		new car("234567", "Oka", persons[1]),
		new car("345678", "Smart", persons[1])
	};

	for (size_t i = 0; i < sizeof(persons)/sizeof(persons[0]); i++)
		std::cout << persons[i]->getName() << " has " << persons[i]->getCarCount() << " cars" << std::endl;

	// https://gist.github.com/grayed
	// Ожидаемый вывод:
	// Ivan Ivanov has 1 cars
	// Ivanka Ivanova has 2 cars

	// (1) доделать
	// (2) добавить контроль входных данных в конструкторах и методах (кидать исключения)

	return 0;
}