C++ Swap Strings - TutorialKart

In this C++ tutorial, you will learn how to swap string values between two string variables using string::swap() function, with examples.

Swap Strings

string::swap() function swaps the value of this string with the given string.

Syntax

The syntax to swap string values between the string variables str1 and str2 is

str1.swap(str2)

Examples

1 Swap string values between string variables str1 and str2

In the following program, we take two strings: str1 and str2 with initial values, and swap their values between them using string::swap() function.

C++ Program

#include <iostream>
using namespace std;

int main() {
    string str1 = "apple";
    string str2 = "mango";
    str1.swap(str2);
    cout << str1 << endl;
    cout << str2 << endl;
}

Output

mango
apple
Program ended with exit code: 0

Conclusion

In this C++ Tutorial, we learned how to swap values between two strings using string::swap() function, with examples.