Write a C++ program to calculate the area of a square using an inline function.input and outputEnter the side length of the square: 5 Area of the square with side length 5 is: 25

Sure, here is a simple C++ program that uses an inline function to calculate the area of a square:

#include<iostream>
using namespace std;

inline int squareArea(int side) {
    return side * side;
}

int main() {
    int side;
    cout << "Enter the side length of the square: ";
    cin >> side;
    cout << "Area of the square with side length " << side << " is: " << squareArea(side) << endl;
    return 0;
}

In this program:

1. We first include the iostream library to allow for input/output operations.
2. We declare an inline function squareArea that takes an integer argument side and returns the square of side (which is the area of the square).
3. In the main function, we declare an integer variable side to store the side length of the square.
4. We prompt the user to enter the side length of the square and store the input in side.
5. We then call the squareArea function with side as the argument and print the result.