//
// This is example code from Chapter 10.11.1 "In-memory representation" of
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include <vector>

using namespace std;

//------------------------------------------------------------------------------

const int not_a_reading = -7777;    // less than absolute zero
const int not_a_month = -1;

//------------------------------------------------------------------------------

struct Day {
    vector<double> hour;
    Day();                // initialize hours to "not a reading"
};

//------------------------------------------------------------------------------

Day::Day() : hour(24)
{
    for (int i = 0; i<hour.size(); ++i) hour[i]=not_a_reading;
}

//------------------------------------------------------------------------------

struct Month {            // a month of temperature readings
    int month;            // [0:11] January is 0
    vector<Day> day;      // [1:31] one vector of readings per day
    Month()               // at most 31 days in a month (day[0] wasted)
        :month(not_a_month), day(32) { }
};

//------------------------------------------------------------------------------

struct Year {             // a year of temperature readings, organized by month
    int year;             // positive == A.D.
    vector<Month> month;  // [0:11] January is 0
    Year() :month(12) { } // 12 months in a year
};

//------------------------------------------------------------------------------