How is the length of the string calculated in the script?

In the script, the length of the string is calculated using the strlen() function from the C standard library. Here's a brief overview of how it works:

1. Include the Header: The script must include the string.h header to use the strlen() function.

   #include <string.h>
   

2. Using strlen(): The strlen() function takes a string (character array) as an argument and returns the length of that string, excluding the null terminator.

Here’s an example of how you might use it in a C program:

#include <stdio.h>
#include <string.h>

int main() {
    char str[] = "Hello, World!";
    size_t length = strlen(str);
    printf("The length of the string is: %zu\n", length);
    return 0;
}

In this example, strlen(str) calculates the length of the string "Hello, World!" and stores it in the variable length, which is then printed.