using a header file with a class in it

[QuPii]

I cant seem to get the my date header file do anything with the functions i have in my main,


here is my header file

  #ifndef DATE_H
#define DATE_H

#include<iostream>
#include<string>
#include<cstring>

using namespace std;

class Date
{
	private:
		static string date1;
		int month;
		int day;
		int year;
	public:
		Date()
		{ date1++;}

		void setMonth(int, string);
		void setDay(int, int);
		void setYear(int);
		int getMonth() const
		{ 
			return month;
		}
		int getDay() const
		{
			return day;
		}
		int getYear() const
		{
			return year;
		}
};
#endif

here are my functions and calls

Date::Date()
{
	month=1;
	day=1;
	year=2000;
}

void Date::setMonth(int m, string mName[])
{
	const int size=13;
	string mName[size]={"null", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
	if (m>=1 && m<=12)
	{
		month=mName[m];
	}
	else
	{
		cout<<"Invalid Month\n";
		exit (EXIT_FAILURE);
	}

}

void Date::setDay(int d, int m)
{
	
	int daysOfMonths[13] = {0,31,28,31,30,31,30,31,30,31,30,31,30};

	if (d<=daysOfMonths[m])
	{
		day=d;
	}
	else
	{
		cout<<"Invalid Day\n";
		exit(EXIT_FAILURE);
	}
}
void Date::setYear(int y) 
{
	year=y;
}

[jidder]

Have you included the header file and is it in the same folder as your cpp file?

#include "date.h" 

Also

{ date1++;}

Why are you trying to increment a string ?

[QuPii]

yes, i just didnt include it in the lines i copied


when i try to compile it does find the file and i think attempt to use it, im just no getting results

[jidder]

What sort of error code are you getting.
It might be because you defined

Date::Date()
{
	month=1;
	day=1;
	year=2000;
}

Date()
{ date1++;}

twice and tried to increment a string which will cause an error.

[QuPii]

I have to set my default date to1/ 1/ 2000
then increment it one day at a time
and have it display the date as January 1, 2000

[jidder]

Strings don't work like that.
You would probably be better having three ints, one for day,month and year.

[QuPii]

so if i have three ints, where do i change my month to a string

[jidder]

Use an "if" statement like if month is 1 output January.
There is not really any need to use a string.

[QuPii]

couldnt i make a tempvariable to use my month and select an element in my array, if that works, i just dont know where to put it, i have such a hard time understanding how to pass info to and from functions.

[giblit]

i have such a hard time understanding how to pass info to and from functions.

Read these pages for functions.
http://www.cplusplus.com/doc/tutorial/functions/
http://www.cplusplus.com/doc/tutorial/functions2/

Read these pages for classes:
http://www.cplusplus.com/doc/tutorial/classes/
http://www.cplusplus.com/doc/tutorial/classes2/

Here is also an example:

class Square {
public:
    int width, height;
    Square(void)
    {
        width = 5;
        height = 5;
    }

    Square(const unsigned int a, const unsigned int b)
    {
       width = a;
       height = b;
    }

    Square operator + (Square param)
    {
        Square temp;
        temp.height = height + param.height;
        temp.width = width + param.width;
        return(temp);
    }
    const unsigned int area(void)
    {
        return(width * height);
    }

    const unsigned int perimeter(void)
    {
        return((width + height) * 2);
    }

};
int main()
{
    Square sq1( 2 , 3 ), sq2( 4 ,5 ), sq3, *pSq1, *pSq2;
    sq3 = sq1 + sq2;
    pSq1 = new Square;
    pSq1 = &sq1;
    pSq2 = pSq1;

    std::cout << sq1.area() << std::endl;
    std::cout << sq2.perimeter() << std::endl;
    std::cout << sq3.area() << std::endl;
    std::cout << pSq1->perimeter() << std::endl;
    std::cout << pSq2->area() << std::endl;
}