C++ Swap Function Explained

1 year ago
Noah Thompson
1 minute

In C++, the swap function is used to exchange the values of two variables. Its usage is as follows:

#include <iostream>

using namespace std;

int main() {
    int a = 5;
    int b = 10;

    cout << "Before swap:" << endl;
    cout << "a = " << a << ", b = " << b << endl;

    swap(a, b);

    cout << "After swap:" << endl;
    cout << "a = " << a << ", b = " << b << endl;

    return 0;
}

In the example above, the swap function is used to exchange the values of variables a and b. After calling the swap function, the value of a becomes 10 and the value of b becomes 5. The swap function is a general function in the C++ standard library, defined in the header file.

bannerAds