absolute

#include <iostream>
using namespace std;

template<class T>
T absoluteValue(T& n1, T& n2)
{
	return n1 > n2 ? n1 - n2 : n2 - n1;
}

int main()
{
	int i1, i2;
	double d1, d2;
	char c1, c2;
	i1 = 10; i2 = 20;
	cout << "Absolute value of 10, 20 is " << absoluteValue(i1, i2) << endl;

	d1 = 5.5; d2 = 3.1;
	cout << "Absolute value of 5.5, 3.1 is " << absoluteValue(d1, d2) << endl;

	return 0;
}