Cpp program to create a function template to swap two numbers

In this article we will learn to implement a Cpp program to create a function template to swap two numbers. A C++ program is provided below to create a function template for swapping.

Program is as follows:

#include <iostream>
using namespace std;
template<class T>
void swapme(T &x, T &y)
{
	T temp = x;
	x = y;
	y = temp;
}
int main()
{
	int a, b;
	cout<<"Enter two integer values: ";
	cin>>a>>b;
	swapme(a, b);
	cout<<"After swap a = "<<a<<", b = "<<b<<endl;
	double p, q;
	cout<<"Enter two double values: ";
	cin>>p>>q;
	swapme(p, q);
	cout<<"After swap p = "<<p<<", q = "<<q;
	return 0;
}

Input and output for the above program are as follows:

Enter two integer values: 10 20
After swap a = 20, b = 10
Enter two double values: 2.4 6.3
After swap p = 6.3, q = 2.4

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.