C++ Program to swap two numbers using structure by reference

---

In this program, You will learn how to swap two numbers using structure by reference in C++.

---

The number is: 10 20

After swap: 20 10

Example: How to swap two numbers using structure by reference in C++.

#include<iostream>
using namespace std;

struct Test {
    int x, y;
};

void swap(Test *t) {

    int temp;

    temp = (*t).x;
    (*t).x = (*t).y;
    (*t).y = temp;
}

int main() {

    struct Test t;

    cout << "Enter two numbers:";
    cin >> t.x >> t.y;

    swap(&t);

    cout << "After swap x is:" << t.x;
    cout << "\nAfter swap y is:" << t.y;

    return 0;
}

Output:

Enter two numbers:10 20
After swap x is:20
After swap y is:10