14_10

#include <iostream>
using namespace std;

void test_const() {
    const int y1 = 17;
    //int& refY1 = y1;
    int x = 17, y = 27;
    const int* pcY1;
    pcY1 = &y1;
    pcY1 = &x;
    cout << pcY1 << " " << *pcY1 << endl;
    //*pcY1 = 18;
    x++;
    cout << pcY1 << " " << *pcY1 << endl;
    const int* pM;
    pM = &x;
    pM = &y;
    int* const pR = &x;
    *pR = 37;
}

void my_swap(int*x, int* y);

void test_my_swap() {
    int x = 3, y = 5;
    cout << "x:" << x << " " << &x << endl;
    cout << "y:" << y << " " << &y << endl;
    my_swap(&x, &y);
    cout << "x:" << x << " " << &x << endl;
    cout << "y:" << y << " " << &y << endl;
}

template <typename T1, typename T2>
void my_swap2(T1& s1, T2& s2) {
    T1 temp = s1;
    s1 =  (T1)s2;
    s2 = temp;
}

template <typename T>
void my_swap(T& s1, T& s2) {
    T temp = s1;
    s1 = s2;
    s2 = temp;
}

void test_string() {
    string name1 = "AB";
    string name2 = "AA";
    if (name1 < name2) {
        cout << name1 << " " << name2 << endl;
    }
    else {
        cout << name2 << " " << name1 << endl;
    }
}

void test_IvanVasiliy(){
    string name1 = "Ivan";
    string name2 = "Vasya";
    my_swap(name1, name2);
    cout << name1 << endl;
    cout << name2 << endl;
}

struct Car {
    string name;
    string color;
    string number;
    double price;
    double volume;

    void show() {
        cout << color << " " << name << " " << price;
    }
};

struct Cars {
    Car* cars;
    int num_cars = 0;

    void add(Car car) {
        Car* buff = new Car[num_cars + 1];
        for (int k = 0; k < num_cars; ++k) {
            buff[k] = cars[k];
        }
        buff[num_cars] = car;
        if (num_cars > 0)
            delete[] cars;
        cars = buff;
        num_cars++;
    }

    void show() {
        for (int k = 0; k < num_cars; ++k) {
            cars[k].show();
            cout << endl;
        }
    }
};

void main() {
    Cars cars;
    Car car{ "BMV", "Red", "a777po 161", 2.7, 4.4 };
    cars.add(car);

    car.name = "VAZ";
    car.color = "White";
    car.number = "x132py 161";
    car.price = 0.7;
    car.volume = 1.6;
    cars.add(car);

    car.name = "VAZ";
    car.color = "White";
    car.number = "T132py 161";
    car.price = 0.7;
    car.volume = 1.6;
    cars.add(car);

    cars.show();
}

void my_swap(int* x, int* y) {
    int tmp = *x;
    cout << "x:" << x << endl;
    cout << "y:" << y << endl;
    *x = *y;
    *y = tmp;
}