c++ sum of ascii string

Sum of ASCII String in C++

To calculate the sum of ASCII values of a string in C++, you can use a loop to iterate through each character of the string and add its ASCII value to a running total. Here's an example code snippet that demonstrates this:

#include <iostream>
#include <string>

int main() {
    std::string str = "Hello, World!";
    int sum = 0;

    for (char c : str) {
        sum += static_cast<int>(c);
    }

    std::cout << "Sum of ASCII values: " << sum << std::endl;

    return 0;
}

Let's break down the code and explain each step:

1. Include the necessary header files:
2. iostream for input/output operations.

3. string for working with strings.

4. Define the main function as the entry point of the program.

5. Declare a string variable str and initialize it with the desired string.

6. Declare an integer variable sum and initialize it to 0. This variable will store the sum of the ASCII values.

7. Use a range-based for loop to iterate through each character c in the string str.

8. Inside the loop, convert the character c to its ASCII value using the static_cast<int>(c) expression. Add this value to the sum variable.

9. After the loop, output the final sum of the ASCII values using std::cout.

10. Finally, return 0 to indicate successful program execution.

Please note that this code assumes ASCII encoding for the characters in the string. If you are working with a different character encoding, the ASCII values may not be valid.

I hope this explanation helps! Let me know if you have any further questions.