Hey guys,

Here's my code:

#include <iostream>
using namespace std ;

template<class T>
class Pair
{
public:
	Pair ( ) ;
	Pair (T v1 , T v2 ) ;
	void setFirst(T newV ) ;
	void setSecond(T newV ) ;
	T getFirst() const ;
	T getSecond() const ;
private:
	T first ;
	T second ;
} ;

template<class T>
Pair<T>::Pair(T v1 , T v2 ) : first(v1) , second(v2)
{ }

template<class T>
void Pair<T>::setFirst(T newV)
{ first = newV ; }

template<class T>
void Pair<T>::setSecond(T newV)
{ second = newV ; }

template<class T>
T Pair<T>::getFirst() const
{
	return first ;
}

template<class T>
T Pair<T>::getSecond() const
{
	return second ;
}

template<class T>
T addUp(const Pair<T>& thePair) ;
typedef Pair<double> PairOfDbl ;
typedef Pair<int> PairOfInt ;
int main ( )
{
	PairOfDbl pair1 ;
	PairOfInt pair2 ;

	pair1.setFirst ( 10.3 ) ;
	pair1.setSecond ( 20.72 ) ;

	pair2.setFirst ( 15 ) ;
	pair2.setSecond ( 35 ) ;

	cout << addUp ( pair1 ) << endl ;
	cout << addUp ( pair2 ) << endl ;

	return 0 ;
}

template<class T>
T addUp(const Pair<T>& thePair)
{
	return (thePair.getFirst() + thePair.getSecond());
}

I'm getting about 5 LINK errors. What am I missing? =\

you are missing this because the constructor at line 8 was never coded.

template<class T>
Pair<T>::Pair( )
{ }
commented: solved my problem. +4

ah! excellent thanks!