The Pair class template Practice creating a class template by writing a template

Question

The Pair class template

Practice creating a class template by writing a template for a class named "Pair". This class will represent a pair of data members of a type that is parameterized in the template definition. For example, you could have a Pair of integers, a Pair of doubles, etc.

Use this driver to test your program:

// your file prologue goes here
#include <iostream>
#include "pair.h"
using namespace std;


int main( )
{
   Pair<char> letters('a', 'd');
   cout << " The first letter is: " << letters.getFirst( );
   cout << " The second letter is: " << letters.getSecond( );

   cout << endl;
   system("Pause");
   return 0;
}

Explanation / Answer

template<class T, class U>

struct pair

{

using first_type = T;

using second_type = U;

T first;

U second;

};

template<>

struct pair<int,string>

{

using first_type = int;

using second_type = string;

int first;

string second;

};

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