Inheritance Problem

[CarleneGriffiths]

I have written my code for my class and i keep getting a couple of errors. Could someone take a look for me and point me in the right direction.
Here is my code:

// DateProject.cpp : Defines the entry point for the console application.
//
/*specification: Create a date class with constructors and a destructor */
#include <stdarg.h>


#include <iostream>
#include <sstream>
#include <string>

using namespace std;



class FancyDateClass
{
private:
int day;
int month;
int year;
static int objectCount;
public:

string toString(void);
string getMonth(void);
int getDayOfWeek(void);
int julianDate(void);
bool isLeapYear;





int setDate(int theDay, int theMonth, int theYear);
// int subtract(FancyDateClass &aDateObj);
void getDate(int &theDay, int &theMonth, int &theYear);
void displayDate(void);


//constructors
FancyDateClass();
FancyDateClass(int theDay, int theMonth, int theYear);
FancyDateClass(const FancyDateClass &aDateObj);
//destructor
~FancyDateClass();
};

int FancyDateClass::objectCount = 0;

int main (void)
{



}

FancyDateClass::FancyDateClass()
{
//default constructor
day = 0;
month = 0;
year = 0;
objectCount++;

}

FancyDateClass::FancyDateClass(int theDay, int theMonth, int theYear)
{
//parameterized constructor
setDate(theDay, theMonth, theYear);
objectCount++;
}

FancyDateClass::FancyDateClass(const FancyDateClass &aDateObj)
{
//copy constructor
day = aDateObj.day;
month = aDateObj.month;
year = aDateObj.year;
objectCount++;
}



FancyDateClass::~FancyDateClass()
{
//destructor
objectCount--;
cout << "Number of DateClass objects instantiated " << objectCount << endl;
}

int FancyDateClass::julianDate(void)
{
//return the Julian date for the current date. The equation to calculate the Julian date is:
//this conversion algorithm is thanks to the work of Fliegel & Van Flandern

int theJulianDate = ( 1461 * ( year + 4800 + ( month - 14 ) / 12 ) ) / 4 + ( 367 * ( month - 2 - 12 * ( ( month - 14 ) / 12 ) ) ) / 12 - ( 3 * ( ( year + 4900 + ( month - 14 ) / 12 ) / 100 ) ) / 4 + day - 32075;

return theJulianDate;
}

int FancyDateClass::getDayOfWeek(void)
{
// return the day of week (M, Tu, Wed...) based on the date.
// Use the follow equation to calculate a day of week integer:

int day = theJulianDate() % 7;

// Where: Monday = 0, Tues = 1, Wed = 3

return day;

}


bool FancyDateClass::isLeapYear()
{

bool leapYear = (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0));

return isLeapYear;

}
string FancyDateClass::toString(void)
{
std::stringstream ss;
int month = 10;
string str;
ss << month;
ss >> str;

return month;

}



int FancyDateClass::setDate(int theDay, int theMonth, int theYear)
{
//gives the member variables a value
//returns an error code if invalid date is entered
//Error codes: 0 -valid date, 3 - bad year, 2 - bad month, 1 bad day

//check each arguement to ensure it is valid
int dateCode = 0;

//check the year
//check the year
if(theYear < 1)
dateCode = 3;
//check the month

if(theMonth < 1 || theMonth > 12)
dateCode = 2;

//check the day
int maxDays = 31;
switch (theMonth)
{
case 2:
maxDays = 28;
break;
case 4:
case 6:
case 9:
case 11:
maxDays = 30;
break;
break;
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
maxDays = 31;
break;
}
if (theDay < 1 || theDay > maxDays)
dateCode = 1;

//set the values right or wrong...
month = theMonth;
day = theDay;
year = theYear;

return dateCode;
}
void FancyDateClass::getDate(int &theDay, int &theMonth, int &theYear)
{
//set the value of the arguements
theDay = day;
theMonth = month;
theYear = year;
}

void FancyDateClass::displayDate(void)
{
//display the date to the screen
cout <<"\n\n";
cout << "day : " << day << endl
<< "month : " << month << endl
<< "year : " << year << endl;
}

Here are the errors:
1> error C3861: 'theJulianDate': identifier not found
1> error C2063: 'FancyDateClass::isLeapYear' : not a function
1> error C2664: 'std::basic_string<_Elem,_Traits,_Ax>::basic_string(const std::basic_string<_Elem,_Traits,_Ax> &)' : cannot convert parameter 1 from 'int' to 'const std::basic_string<_Elem,_Traits,_Ax> &'
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>,
1> _Ax=std::allocator<char>
1> ]
1> Reason: cannot convert from 'int' to 'const std::basic_string<_Elem,_Traits,_Ax>'
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>,
1> _Ax=std::allocator<char>
1> ]
1> No constructor could take the source type, or constructor overload resolution was ambiguous

Any help would be great
Thanks in advance!!

[filipe]

First of all, the next time you post code, please use [ code ] [ /code ] tags (remove the spaces) and indent it. More people might be willing to help if the code is easy to read.

Now, to the error messages:

error C3861: 'theJulianDate': identifier not found

This one is pretty obvious. Inside FancyDateClass::getDayOfWeek(), you call theJulianDate(), but the function you declared is called julianDate().

error C2063: 'FancyDateClass::isLeapYear' : not a function

This is also pretty clear. Look at your declaration of what was supposed to be FancyDateClass::isLeapYear(). You forgot the parameter list.

The third error message is not as clear, but it still points out the problem:

cannot convert from 'int' to 'const std::basic_string<_Elem,_Traits,_Ax>'

Somewhere in your code you're trying to pass an int where an std::string is required. Check the return value of FancyDateClass::toString().

On a side note, the use of (void) as a parameter list is not necessary in C++. An empty list will do it.

Finally, there's no inheritance in the above code. You should review the subject.