cs211-extra-task-1/extra-task-1.cpp at master · qustoo/cs211-extra-task-1 · GitHub

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#include <iostream>
#include <cassert>

double seconds_difference(double time_1, double time_2)
{
    return double((time_2 - time_1));
}

double hours_difference(double time_1, double time_2)
{
    return double((time_2 - time_1) / 3600);
}

double to_float_hours(int hours, int minutes, int seconds)
{
    assert(hours >= 0 && minutes >= 0 && minutes <= 60 && seconds >= 0 && seconds <= 60);
    return double(hours + minutes / 60.0 + seconds / 3600.0);
}

double to_24_hour_clock(double hours)
{

    assert(hours >= 0);
    return hours - ((int)hours / 24) * 24;

}

double get_hours(double sec)
{
    assert(sec >= 0);
    return (int)sec / 3600;
}
double get_minutes(double sec)
{
    assert(sec >= 0);
    return (int(sec) / 60) % 60;

}
double get_seconds(double sec)
{
    assert(sec >= 0);
    return (int)sec % 60;
}

double time_to_utc(int utc_offset, double time)
{
    assert(time >= 0 && time <= 24);
    assert(utc_offset >= -12 && utc_offset <= 12);
    return ((int)time - utc_offset) % 24;
}

double time_from_utc(int utc_offset, double time)
{
    assert(time >= 0 && time <= 24);
    assert(utc_offset >= -12 && utc_offset <= 12);
    if (fabs(utc_offset) > fabs(time))
    {
        return 24 - (fabs(utc_offset) - fabs(time));
    }
    else
    {
        return ((int)time + utc_offset) % 24;
    }
}


int main()
{
    const auto eps = DBL_EPSILON;


    std::cout << "seconds_difference:" << std::endl;
    assert(fabs(seconds_difference(1800.0, 3600.0) - 1800.0) < eps);
    assert(fabs(seconds_difference(3600.0, 1800.0) - -1800.0) < eps);
    assert(fabs(seconds_difference(1800.0, 2160.0) - 360.0) < eps);
    assert(fabs(seconds_difference(1800.0, 1800.0) - 0.00) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "hours_difference:" << std::endl;
    assert(fabs(hours_difference(1800.0, 3600.0) - 0.5) < eps);
    assert(fabs(hours_difference(3600.0, 1800.0) - -0.5) < eps);
    assert(fabs(hours_difference(1800.0, 2160.0) - 0.1) < eps);
    assert(fabs(hours_difference(1800.0, 1800.0) - 0.0) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "to_float_hours:" << std::endl;
    assert(fabs(to_float_hours(0, 15, 0) - 0.25) < eps);
    assert(fabs(to_float_hours(2, 45, 9) - 2.7525) < eps);
    assert(fabs(to_float_hours(1, 0, 36) - 1.01) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "to_24_hour_clock:" << std::endl;
    assert(fabs(to_24_hour_clock(24) - 0) < eps);
    assert(fabs(to_24_hour_clock(48) - 0) < eps);
    assert(fabs(to_24_hour_clock(25) - 1) < eps);
    assert(fabs(to_24_hour_clock(4) - 4) < eps);
    assert(fabs(to_24_hour_clock(28.5) - 4.5) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;


    std::cout << "get_hours:" << std::endl;
    assert(fabs(get_hours(3800) - 1) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "get_minutes:" << std::endl;
    assert(fabs(get_minutes(3800) - 3) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "get_seconds:" << std::endl;
    assert(fabs(get_seconds(3800) - 20) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "time_to_utc:" << std::endl;
    assert(fabs(time_to_utc(+0, 12.0) - 12.0) < eps);
    assert(fabs(time_to_utc(+1, 12.0) - 11.0) < eps);
    assert(fabs(time_to_utc(-1, 12.0) - 13.0) < eps);
    assert(fabs(time_to_utc(-11, 18.0) - 5.0) < eps);
    assert(fabs(time_to_utc(-1, 0.0) - 1.0) < eps);
    assert(fabs(time_to_utc(-1, 23.0) - 0.0) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    std::cout << "time_to_utc:" << std::endl;
    assert(fabs(time_from_utc(+0, 12.0) - 12.0) < eps);
    assert(fabs(time_from_utc(+1, 12.0) - 13.0) < eps);
    assert(fabs(time_from_utc(-1, 12.0) - 11.0) < eps);
    assert(fabs(time_from_utc(+6, 6.0) - 12.0) < eps);
    assert(fabs(time_from_utc(-7, 6.0) - 23.0) < eps);
    assert(fabs(time_from_utc(-1, 0.0) - 23.0) < eps);
    assert(fabs(time_from_utc(-1, 23.0) - 22.0) < eps);
    assert(fabs(time_from_utc(+1, 23.0) - 0.0) < eps);
    std::cout << "All test have been passed!" << std::endl;

    std::cout << std::endl;
    std::cout << std::endl;

    system("pause");


}