## Friday, July 19, 2013

This article explains the different types of function overloading methods to compute the power of a number (xn) using C++. In this tutorial, I have used Dev C++ v5.11 software for compiling the C++ program.

Example for function overloading, add (int a, int b)
add (int a, int b, int c)
add (float a, float b)
add (float a, int b)

Example for operator overloading, Increment i(5); // Class declaration and input value
 i++; // Calling of a function "void operator++()" which assigns x += 5;
 i.Print(); // Output is 10

#### Source Code

// Computing m^n using function overloading.
#include <iostream>
#include <conio.h>
using namespace std;

long double power (double m, int n) {
long double x = 1;
for (int i = 0; i < n; i++) {
x *= m;
}
return x;
}

long power (int m, int n) {
long x = 1;
for (int i = 0; i < n; i++) {
x *= m;
}
return x;
}

int main() {
system("cls");
double a;
int b, c, d;
cout << "Computing m\xFC for large numbers:-\n";
cout << "\nEnter m and n values: ";
cin >> a >> b;
cout << "Result of " << a << "^" << b << " is " << power(a, b);
cout << "\n\nComputing m\xFC for small numbers:-\n";
cout << "\nEnter m and n values: ";
cin >> c >> d;
cout << "Result of " << c << "^" << d << " is " << power(c, d);
getch();
}