Reverse a String in C++ Without Library Functions #shorts

In this C++ program, we demonstrate how to reverse a given string without utilizing any library functions specifically designed for string reversal. The program takes a string, in this case, "word," and reverses it using a loop and basic string manipulation techniques.

Here's a breakdown of how the program works:

1. A string variable `str` is initialized with the value "word."

2. The program calculates the length of the string `str` using the `length()` member function, which returns the number of characters in the string. The result is stored in the integer variable `n`.

3. A `for` loop is used to iterate through the first half of the string (up to `n/2` characters).

4. Inside the loop, the program performs the following steps to reverse the string:
- It swaps the characters at the current position (`i`) and its corresponding position from the end of the string (`n - i - 1`). This swap operation effectively reverses the order of characters.

5. After the loop completes, the string `str` has been reversed in place.

6. The program then prints the reversed string, which is now "drow."