Thread: compiling problems LNK2019 error

I am working on a project and am trying to compile as I go and I'm getting a linking problem. The main most of header file functions were given to us.

Header

Code:

#ifndef INTEGERSET_H
#define INTEGERSET_H

const int arraySize = 100;

class IntegerSet 
{
public:
	IntegerSet();  //Default constructor empty set

	//IntegerSet( int values[], int size );  //Constructor with values
	~IntegerSet(); 

	//IntegerSet& unionSet( IntegerSet& otherSet );
	//IntegerSet& intersectSet( IntegerSet& otherSet );

	//void clear();

	//bool isEmptySet();
	bool insertElement( int elem, int count = 1 );
	//bool removeElement( int elem, int count = 1 );

	//bool setElementCount( int elem, int count );
	//int getNumElements( int elem );

	//bool isEqualTo( IntegerSet& otherSet );

	void printSet();

private:
	int array;

};

#endif

IntegerSet.cpp

Code:

#include "IntegerSet.h"
#include <iostream>
#include <conio.h>
#include <iomanip>

using std::cout;
using std::endl;
using std::setw;


static int array[ arraySize ];


bool IntegerSet::insertElement( int elem, int counter )
{
	if( elem > 0 && elem <= arraySize )
	{
		return true;
	}
	else
		return false;
	
}

void IntegerSet::printSet()
{
	for( int idx = 0; idx < arraySize; ++idx )
		cout << idx << ")" << setw( 3 ) << idx << endl;
}

main.cpp

Code:

#include "IntegerSet.h"
#include <iostream>
#include <conio.h>

using std::cout;
using std::endl;

int main()
{
	int i;
	IntegerSet a;

	cout << "Empty Set" << endl;
	a.printSet();
	getch();

	srand( 1234 );
	for( i = 0; i < 50000; ++i )
		a.insertElement( rand() % 101 );
		a.printSet();
	getch();

/*	cout << "Random insert" << endl;
	a.printSet();
	getch();

	int testArray[300];
	for( i = 0; i < 300; ++i )
		testArray[i] = rand() % 101;

	IntegerSet b( testArray, 300 );

	cout << "Fill from array" << endl;
	b.printSet();
	getch();

	IntegerSet c = a;

	cout << "Operator =" << endl;
	c.printSet();
	getch();

	c.unionSet( b ).intersectSet( a );

	cout << "Union b, intersect a" << endl;
	c.printSet();
	getch();

	if( a.isEqualTo( c ) )
		cout << "A and C are equivalent" << endl;
	else
		cout << "A and C are not equivalent" << endl;

	if( b.isEmptySet() )
		cout << "B is empty" << endl;
	else
		cout << "B is not empty" << endl;
*/

	getch();
	return 0;
}

Errors

Code:

MT fatal error LNK1120: 2 unresolved externals
MT error LNK2019: unresolved external symbol "public: __thiscall IntegerSet::~IntegerSet(void)" (??1IntegerSet@@QAE@XZ) referenced in function _main
MT error LNK2019: unresolved external symbol "public: __thiscall IntegerSet::IntegerSet(void)" (??0IntegerSet@@QAE@XZ) referenced in function _main

I commented out most things b/c I'm trying to go one step at a time. I would appreciate any help.