#include <time.h> // Includes base header time.h

int dateformat = 0; // VERY IMPORTANT! Defines the date format to be used. Please do not change manually.
#define SETFORMAT_YYYY_MM_DD dateformat=0
#define SETFORMAT_YY_MM_DD dateformat=1
#define SETFORMAT_MM_DD dateformat=2
#define SETFORMAT_The_DD_MONTHNAME dateformat=3

// Seconds per x:
#define SECpDAY 86400
#define SECpHOUR 3600
#define SECpYEAR 31536000
#define SECpMIN 60
#define SECpMONTH
#define SECpWEEK 604800

// Minutes per x:
#define MINpHOUR 60
#define MINpDAY 1440
#define MINpYEAR 525600
#define MINpWEEK 10080

// Hours per x
#define HOURpDAY 24
#define HOURpYEAR 8760
#define HOURpWEEK 168

// Days per x
int YEARSCOPE = 1; // Important! This is user-set. It is used in cDAYpYEAR, when you need exact values.
#define cDAYpYEAR (((365*4)-SINCELASTLEAPYEAR)+((((YEARSCOPE-(4-SINCELASTLEAPYEAR)/4)*3)*sDAYpYEAR)+((((YEARSCOPE-(4-SINCELASTLEAPYEAR)/4)*1)*sDAYpYEAR)))/YEARSCOPE;
#define DAYpYEAR 365.25 // The average over 4 years
#define sDAYpYEAR 365 // What you usually say
#define DAYpWEEK 7

#define DAY (int)((((int)((time(NULL)/SECpDAY)))-((YEAR-1970)*365.25))+1)
#define LASTLEAPYEAR 2008
#define LEAPYEARINTERVAL 4
#define SINCELASTLEAPYEAR YEAR-LASTLEAPYEAR
#define YEAR time(NULL)/31536000+1970
#define LEAPYEAR ((((YEAR-LASTLEAPYEAR)%LEAPYEARINTERVAL)==0)?true:false)
#define FEBLENGTH (LEAPYEAR?29:28)
#define MONTH month_function()
#define MONTHSTRING monthstring_function(MONTH)
#define DAYSINMONTH daysinmonth_function()
#define DAYINMONTH dayinmonth_function()
#define PRINTDATE printdate_function(dateformat)
#define AVGDAYINMONTH 30.4375

string monthstring_function( int month )
{
    switch(month)
    {
        case(1):
            return "January";
            break;
        case(2):
            return "February";
            break;
        case(3):
            return "March";
            break;
        case(4):
            return "April";
            break;
        case(5):
            return "May";
            break;
        case(6):
            return "June";
            break;
        case(7):
            return "July";
            break;
        case(8):
            return "August";
            break;
        case(9):
            return "September";
            break;
        case(10):
            return "October";
            break;
        case(11):
            return "November";
            break;
        case(12):
            return "December";
            break;
    }
    return "Invalid month!";
}
int dayinmonth_function()
{
    int days = DAY;
    if ( days <= 31 ) // January
    {
        return days;
    }
    days -= 31;
    if ( days <= FEBLENGTH ) // February
    {
        return days;
    }
    days -= FEBLENGTH;
    if ( days <= 31 ) // March
    {
        return days;
    }
    days -= 30;
    if ( days <= 31 ) // April
    {
        return days;
    }
    days -= 31;
    if ( days <= 30 ) // May
    {
        return days;
    }
    days -= 30;
    if ( days <= 31 ) // June
    {
        return days;
    }
    days -= 31;
    if ( days <= 30 ) // July
    {
        return days;
    }
    days -= 30;
    if ( days <= 31 ) // August
    {
        return days;
    }
    days -= 31;
    if ( days <= 30 ) // September
    {
        return days;
    }
    days -= 30;
    if ( days <= 31 ) // October
    {
        return days;
    }
    days -= 31;
    if ( days <= 30 ) // November
    {
        return days;
    }
    days -= 30;
    if ( days <= 31) // December
    {
        return days;
    }

    return -1;
}

int month_function()
{
    int days = DAY;
    if ( days <= 31 )
    {
        return 1;
    } else if ( days <= FEBLENGTH+31 )
    {
        return 2;
    } else if ( days <= FEBLENGTH+31+31)
    {
        return 3;
    } else if ( days <= FEBLENGTH+31+31+30 )
    {
        return 4;
    } else if ( days <= FEBLENGTH+31+31+30+31 )
    {
        return 5;
    } else if ( days <= FEBLENGTH+31+31+30+31+30 )
    {
        return 6;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31)
    {
        return 7;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31+30)
    {
        return 8;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31+30+31)
    {
        return 9;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31+30+31+30)
    {
        return 10;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31+30+31+30+31)
    {
        return 11;
    } else if ( days <= FEBLENGTH+31+31+30+31+30+31+30+31+30+31+30)
    {
        return 12;
    } else
    {
        return -1;
    }
}
void printdate_function(int format)
{
    if ( format == 0 )
        cout<<YEAR<<"/"<<MONTH<<"/"<<DAYINMONTH;
    else if ( format == 1 )
    {
        int b = YEAR-2000;
        string c = (b < 10)?"0":"";
        cout<<c<<b<<"/"<<MONTH<<"/"<<DAYINMONTH;
    }
    else if ( format == 2 )
        cout<<MONTH<<"/"<<DAYINMONTH;
    else if ( format == 3 )
    {
        string end = ":th";
        if (DAYINMONTH == 1)
            end = ":st";
        else if (DAYINMONTH == 2)
            end = ":nd";
        else if (DAYINMONTH == 3)
            end = ":rd";
        cout<<"The "<<DAYINMONTH<<end<<" "<<MONTHSTRING;
    }
}