appending int to string in cpp

To append an integer to a string in C++, you can follow these steps:

1. Declare a string variable to store the initial string value.
2. Declare an integer variable to store the integer value.
3. Convert the integer value to a string using the to_string() function.
4. Use the concatenation operator '+' to append the converted string to the initial string.
5. The final value of the string will now contain the appended integer.

Please note that the example below demonstrates these steps:

#include <iostream>
#include <string>

int main() {
    std::string initialString = "Hello";
    int number = 42;

    std::string appendedString = initialString + std::to_string(number);

    std::cout << "Appended string: " << appendedString << std::endl;

    return 0;
}

This program declares a string variable initialString with the value "Hello" and an integer variable number with the value 42. It then uses the concatenation operator '+' to append the string representation of number to initialString. The resulting string is stored in the appendedString variable. Finally, the program prints the value of appendedString to the console, which will be "Hello42".