main.cpp

// Создайте класс Rational (рациональная дробь)

// TODO:
// приватные поля для данных
// конструктор, содержащий значения по умолчанию
// функции-элементы установки и извлечения значений
// перегруженные операторы ввода и вывода
// конструктор копий
// оператор присваивания

// указанные в задании перегруженные операции
// ++ -- -n == != = + += - -= * *= / /= > < >= <=

//  НЕ ДОП:
//*  - поправить вывод
//*  - !!!учесть отрицательные числа
//  ДОП:
//* - добавить целую часть (в сам класс)
//* - операции, соотв., с учетом целой части дробей
//*  - сортировка Шелла массива дробей

#include "rational.h"
using namespace std;

// тестирование функций класса
int main()
{
    int test_n = 0;
    cout << "Run test #";
    cin >> test_n;

    switch (test_n)
    {
    case 0: // test
    {
        Rational r1(-11205729, 14420), r2(3349, 14420), r3(11207689, 14420), r4(5439, 103);
        cout << r1 << " = " << r1.normalize() << " = " << r1.normalize() << " = " << r1.denormalize() << endl;
        cout << r2 << " = " << r2.normalize() << " = " << r2.normalize() << " = " << r2.denormalize() << endl;
        cout << r3 << " = " << r3.normalize() << " = " << r3.normalize() << " = " << r3.denormalize() << endl;
        cout << r4 << " = " << r4.normalize() << " = " << r4.normalize() << " = " << r4.denormalize() << endl;
        break;
    }
    case 1:
    {
        // тут тестируются:
        // конструкторы, геттеры, сеттеры,
        // вывод, конструктор копий, присваивания

        Rational lol(1, 2), kek = {2, 3};
        cout << "Rational 1 / 2: " << lol << endl;
        cout << "Rational 2 / 3: " << kek << endl;

        Rational temp(618);
        cout << "Int 618 to Rational: " << temp << endl;

        Rational test(42, 618);
        cout << "42 / 618 = " << test << " -> ";

        test.set(618, 42);
        cout << test << " -> ";
        cout << test.numerator() << " / "
             << test.denominator() << " -> ";

        test.numerator() = 6;
        test.denominator() = 18;
        cout << test << endl;

        Rational test_copy(test);
        cout << test << " = " << test.simplify()
             << " => copy: " << test_copy << endl;

        lol = kek = temp = test;
        cout << lol << ", "
             << kek << ", "
             << temp << endl;
        break;
    }

    case 2:
    {
        // тут тестируются:
        // ++ -- -n + += - -= * *= / /=

        Rational lol(42, 618);
        Rational kek(69, 420);
        long long abc = 777;

        cout << "++" << lol << " = " << ++lol << "\n";
        cout << "--" << lol << " = " << --lol << "\n";
        cout << "-" << lol << " = " << -lol << "\n";

        cout << lol << " + " << kek << " = " << lol + kek << endl;
        cout << lol << " + " << abc << " = " << lol + abc << endl;
        cout << abc << " + " << lol << " = " << abc + lol << endl;

        cout << lol << " - " << kek << " = " << lol - kek << endl;
        cout << lol << " - " << abc << " = " << lol - abc << endl;
        cout << abc << " - " << lol << " = " << abc - lol << endl;

        cout << lol << " * " << kek << " = " << (lol * kek).normalize() << endl;
        cout << lol << " * " << abc << " = " << (lol * abc).normalize() << endl;
        cout << abc << " * " << lol << " = " << (abc * lol).normalize() << endl;

        cout << lol << " / " << kek << " = " << lol / kek << endl;
        cout << lol << " / " << abc << " = " << lol / abc << endl;
        cout << abc << " / " << lol << " = " << abc / lol << endl;

        lol = {42, 618};
        kek = {69, 420};
        abc = 777;
        cout << lol << " += " << kek << " -> " << (lol += kek) << endl;
        cout << lol << " += " << abc << " -> " << (lol += abc) << endl;

        lol = {42, 618};
        kek = {69, 420};
        abc = 777;
        cout << lol << " -= " << kek << " -> " << (lol -= kek) << endl;
        cout << lol << " -= " << abc << " -> " << (lol -= abc) << endl;

        lol = {42, 618};
        kek = {69, 420};
        abc = 777;
        cout << lol << " *= " << kek << " -> " << (lol *= kek) << endl;
        cout << lol << " *= " << abc << " -> " << (lol *= abc) << endl;

        lol = {42, 618};
        kek = {69, 420};
        abc = 777;
        cout << lol << " /= " << kek << " -> " << (lol /= kek) << endl;
        cout << lol << " /= " << abc << " -> " << (lol /= abc) << endl;

        break;
    }

    case 3:
    {
        // тут тестируются:
        // == != > >= < <=

        Rational testA(1, 2);
        Rational testB(1, 2);

        if (testA == testB)
            cout << "testA == testB" << endl;
        if (testA == testA)
            cout << "testA == testA" << endl;

        Rational testNew(testA);
        if (testA == testNew)
            cout << "testA == testNew" << endl;

        cout << ++testNew << ", " << testNew << endl;
        if (testA == testNew)
            cout << "testA == testNew" << endl;

        cout << testA++ << ", " << testA << endl;
        if (testA == testNew)
            cout << "testA == testNew" << endl;

        Rational temp(10, -20);
        cout << temp << ", " << temp.simplify() << ", " << temp << endl;

        Rational lol = {42, 618}, kek = {69, 420};
        cout << lol << " > " << kek << (lol > kek ? " = True" : " = False") << endl;
        cout << lol << " >= " << kek << (lol >= kek ? " = True" : " = False") << endl;
        cout << lol << " < " << kek << (lol < kek ? " = True" : " = False") << endl;
        cout << lol << " <= " << kek << (lol <= kek ? " = True" : " = False") << endl;
        break;
    }

    case 4:
    {
        cout << "\n//-- Summ Test --//\n\n";
        Rational rr;
        for (int i = 1; i < 30; i++)
        {
            Rational temp(1, i);
            rr = rr + temp;
            cout << rr << " = " << rr.get_value() << endl;
        }
        break;
    }
    case 5: // shell sort
    {
        int count = 9;
        Rational* arr[count] = {
            new Rational(1, 2),
            new Rational(12, 21),
            new Rational(13, 22),
            new Rational(14, 23),
            new Rational(15, 24),
            new Rational(0, 1),
            new Rational(666, 6),
            new Rational(16, 25),
            new Rational(17, 26)
        };
        cout << "original:\n";
        for (int i = 0; i < count; i++) {
            cout << *(arr[i]) << endl;
        }
        cout << "sorted:\n";
        ShellSort(count, arr);
        for (int i = 0; i < count; i++) {
            cout << *(arr[i]) << endl;
        }
    }
    }
}