//this is a template class to store pairs of objects
//we will then define operations that can be performed on pairs
#include <string>
#include <iostream>
using namespace std;

template<class Type>
class genPair
{
private:
    Type a;
    Type b;
public:

    genPair(Type first, Type second)
    {
        a=first;
        b=second;
    }

    Type getFirst(){return a;}
    Type getSecond(){return b;}

    void setFirst(Type newVal){a = newVal;}
    void setSecond(Type newVal){b = newVal;}

    //displays genPair in form (a, b)
    //uses Type's stream insertion (<<) operator
    void displayPair()
    {
        cout<< "("<<a<<", "<<b<<")";
    }

    //uses Type's addition operator
    genPair operator+(genPair right)
    {
        Type first;
        Type second;

        first = this->a + right.a;
        second = this->b+right.b;
        genPair sum(first, second);
        return sum;

    }

    void swap();


};


    template<class Type>
    void genPair<Type>::swap()
    {
        Type temp = a;
        a = b;
        b = temp;
    }

int main()
{
    genPair<int> p1(1, 2);

    genPair<int> p2(3, 4);
    p2.swap();
    genPair<int> p3 = p1+p2;
    cout<< "The sum of ";
    p1.displayPair();
    cout<<" and ";
    p2.displayPair();
    cout<<" is ";
    p3.displayPair();


    genPair<string> name("Bob", "Smith");
    cout<<endl;
    name.displayPair();
    name.swap();
    cout<<endl;
    name.displayPair();
    genPair<string> space(" ", " ");
    name=name+space;
    cout<<endl;
    name.displayPair();
}